Remove autotools

79 files changed, 0 insertions, 12961 deletions

diff --git a/.gitignore b/.gitignore
index 37c06428..0f4c95ef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,60 +1,3 @@
-Makefile.in
-configure
-config.h.in
-lib/Makefile.in
-libtool
-INSTALL
-doc/reference/Makefile.in
-aclocal.m4
-Makefile
-autom4te.cache
-config.h
-config.log
-config.status
-stamp-h1
-libcrystfel/libcrystfel.la
-libcrystfel/src/*.o
-libcrystfel/src/*.lo
-libcrystfel/src/.dirstamp
-libcrystfel/src/*.deps
-libcrystfel/*.libs
-libcrystfel/src/*.libs
-tests/.libs
-src/*.o
-src/.deps
-src/.libs
-src/pattern_sim
-src/process_hkl
-src/get_hkl
-src/hdfsee
-src/indexamajig
-src/compare_hkl
-src/render_hkl
-src/partialator
-src/check_hkl
-src/partial_sim
-src/cell_explorer
-src/ambigator
-src/whirligig
-src/geoptimiser
-src/list_events
-src/.dirstamp
-*~
 doc/reference/libcrystfel/*
-gtk-doc.make
-build-aux/compile
-build-aux/config.sub
-build-aux/install-sh
-build-aux/missing
-build-aux/config.guess
-build-aux/depcomp
-build-aux/ltmain.sh
-build-aux/test-driver
-/nbproject/private/
-lib/.libs/
-lib/dummy.lo
-lib/libgnu.la
 libcrystfel/crystfel.pc
 version.h
-tests/*.log
-tests/*.trs
diff --git a/Makefile.am b/Makefile.am
deleted file mode 100644
index c3072602..00000000
--- a/Makefile.am
+++ /dev/null
@@ -1,203 +0,0 @@
-docdir = ${datadir}/doc/${PACKAGE}
-EXTRA_DIST = configure m4/gnulib-cache.m4 version.sh version.h.in
-SUBDIRS = lib doc/reference/libcrystfel libcrystfel
-ACLOCAL_AMFLAGS = -I m4
-
-bin_PROGRAMS = src/pattern_sim src/process_hkl src/get_hkl src/indexamajig \
-               src/compare_hkl src/partialator src/check_hkl src/partial_sim \
-               src/ambigator src/geoptimiser src/whirligig src/list_events
-
-noinst_PROGRAMS = tests/list_check tests/integration_check \
-                  tests/pr_p_gradient_check tests/symmetry_check \
-                  tests/centering_check tests/transformation_check \
-                  tests/cell_check tests/ring_check \
-                  tests/prof2d_check tests/ambi_check \
-		  tests/prediction_gradient_check
-
-MERGE_CHECKS = tests/first_merge_check tests/second_merge_check \
-               tests/third_merge_check tests/fourth_merge_check
-
-PARTIAL_CHECKS = tests/partialator_merge_check_1 \
-                 tests/partialator_merge_check_2 \
-                 tests/partialator_merge_check_3 \
-                 tests/pr_p_gradient_check
-
-TESTS = tests/list_check $(MERGE_CHECKS) $(PARTIAL_CHECKS) \
-        tests/integration_check \
-        tests/symmetry_check tests/centering_check tests/transformation_check \
-        tests/cell_check tests/ring_check tests/prof2d_check tests/ambi_check \
-        tests/prediction_gradient_check
-
-EXTRA_DIST += $(MERGE_CHECKS) $(PARTIAL_CHECKS)
-EXTRA_DIST += relnotes-0.6.3 announcement-0.6.3
-
-if BUILD_HDFSEE
-bin_PROGRAMS += src/hdfsee
-endif
-
-if BUILD_EXPLORER
-bin_PROGRAMS += src/cell_explorer
-endif
-
-if HAVE_CAIRO
-bin_PROGRAMS += src/render_hkl
-endif
-
-AM_CFLAGS = -Wall @MAIN_CFLAGS@
-AM_CPPFLAGS = -DDATADIR=\""$(datadir)"\" -I$(top_builddir)/lib
-AM_CPPFLAGS += -I$(top_srcdir)/lib
-LDADD = $(top_builddir)/lib/libgnu.la @IGNORE_UNUSED_LIBRARIES_CFLAGS@
-LDADD += $(top_builddir)/libcrystfel/libcrystfel.la @MAIN_LIBS@
-
-tests_integration_check_LDADD = $(top_builddir)/lib/libgnu.la
-tests_integration_check_LDADD += $(top_builddir)/libcrystfel/libcrystfel.la
-tests_integration_check_LDADD += @LIBCRYSTFEL_LIBS@
-
-tests_prof2d_check_LDADD = $(top_builddir)/lib/libgnu.la
-tests_prof2d_check_LDADD += $(top_builddir)/libcrystfel/libcrystfel.la
-tests_prof2d_check_LDADD += @LIBCRYSTFEL_LIBS@
-
-src_partial_sim_SOURCES = src/partial_sim.c
-
-src_pattern_sim_SOURCES = src/pattern_sim.c src/diffraction.c
-
-if HAVE_OPENCL
-src_pattern_sim_SOURCES += src/cl-utils.c src/diffraction-gpu.c
-TESTS += tests/gpu_sim_check
-noinst_PROGRAMS += tests/gpu_sim_check
-tests_gpu_sim_check_SOURCES = tests/gpu_sim_check.c src/diffraction.c \
-                              src/diffraction-gpu.c src/cl-utils.c
-endif
-
-src_process_hkl_SOURCES = src/process_hkl.c
-
-src_list_events_SOURCES = src/list_events.c
-
-src_indexamajig_SOURCES = src/indexamajig.c src/im-sandbox.c \
-                          src/process_image.c src/time-accounts.c
-
-if BUILD_HDFSEE
-src_hdfsee_SOURCES = src/hdfsee.c src/dw-hdfsee.c src/hdfsee-render.c
-endif
-
-if BUILD_EXPLORER
-src_cell_explorer_SOURCES = src/cell_explorer.c src/multihistogram.c
-endif
-
-src_get_hkl_SOURCES = src/get_hkl.c
-
-src_compare_hkl_SOURCES = src/compare_hkl.c
-
-src_check_hkl_SOURCES = src/check_hkl.c
-
-if HAVE_CAIRO
-src_render_hkl_SOURCES = src/render_hkl.c
-endif
-
-src_partialator_SOURCES = src/partialator.c src/post-refinement.c \
-                          src/merge.c src/rejection.c src/scaling.c
-
-src_ambigator_SOURCES = src/ambigator.c
-
-src_geoptimiser_SOURCES = src/geoptimiser.c src/hdfsee-render.c
-
-src_whirligig_SOURCES = src/whirligig.c
-
-tests_list_check_SOURCES = tests/list_check.c
-
-tests_integration_check_SOURCES = tests/integration_check.c
-
-tests_prof2d_check_SOURCES = tests/prof2d_check.c
-
-tests_symmetry_check_SOURCES = tests/symmetry_check.c
-
-tests_ambi_check_SOURCES = tests/ambi_check.c
-
-tests_pr_p_gradient_check_SOURCES = tests/pr_p_gradient_check.c \
-                                  src/post-refinement.c
-
-tests_prediction_gradient_check_SOURCES = tests/prediction_gradient_check.c
-
-tests_centering_check_SOURCES = tests/centering_check.c
-
-tests_transformation_check_SOURCES = tests/transformation_check.c
-
-tests_ring_check_SOURCES = tests/ring_check.c
-
-tests_cell_check_SOURCES = tests/cell_check.c
-
-INCLUDES = -I$(top_srcdir)/libcrystfel/src -I$(top_srcdir)/data
-
-EXTRA_DIST += src/dw-hdfsee.h src/hdfsee.h src/render_hkl.h \
-              src/post-refinement.h src/merge.h \
-              src/cl-utils.h src/hdfsee-render.h src/diffraction.h \
-              src/diffraction-gpu.h src/pattern_sim.h src/list_tmp.h \
-              src/im-sandbox.h src/process_image.h src/multihistogram.h \
-              src/rejection.h src/scaling.h src/time-accounts.h
-
-crystfeldir = $(datadir)/crystfel
-crystfel_DATA = data/diffraction.cl data/hdfsee.ui
-
-EXTRA_DIST += $(crystfel_DATA)
-
-man_MANS = doc/man/crystfel.7 doc/man/check_hkl.1 doc/man/compare_hkl.1 \
-           doc/man/crystfel_geometry.5 doc/man/get_hkl.1 doc/man/hdfsee.1 \
-           doc/man/indexamajig.1 doc/man/partialator.1 doc/man/partial_sim.1 \
-           doc/man/pattern_sim.1 doc/man/process_hkl.1 doc/man/render_hkl.1 \
-           doc/man/cell_explorer.1 doc/man/ambigator.1 doc/man/geoptimiser.1 \
-           doc/man/whirligig.1 doc/man/list_events.1
-
-
-EXTRA_DIST += $(man_MANS)
-
-crystfeldocdir = $(docdir)
-crystfeldoc_DATA = doc/twin-calculator.pdf doc/examples/lcls-dec.geom \
-                   doc/examples/lcls-june-r0013-r0128.geom \
-                   doc/examples/lcls-xpp-estimate.geom \
-                   doc/examples/simple.geom \
-                   doc/examples/cspad-single.geom \
-                   doc/examples/cspad-cxiformat.geom \
-                   doc/examples/pilatus.geom \
-                   doc/examples/cell-example.cell \
-                   doc/examples/Eiger16M-binning2-nativefiles.geom \
-                   doc/hitrate.html doc/hitrate.png
-
-EXTRA_DIST += $(crystfeldoc_DATA) doc/twin-calculator.odt \
-              doc/reference/libcrystfel/xml/coding-standards.xml
-
-scriptdir = $(docdir)/scripts
-script_DATA = scripts/alternate-stream scripts/cell-please \
-              scripts/check-hkl-completeness.gp scripts/check-hkl-quality.gp \
-              scripts/check-near-bragg scripts/check-peak-detection \
-              scripts/cif2hkl scripts/compare-hkl.gp scripts/create-mtz \
-              scripts/create-xscale scripts/eV-to-A scripts/find-filename \
-              scripts/gen-sfs scripts/gen-sfs-ano scripts/hkl2hkl \
-              scripts/indexed-filenames scripts/mtz2hkl scripts/peak-intensity \
-              scripts/random-image scripts/README scripts/sequence-image \
-              scripts/split-indexed scripts/stream_grep scripts/zone-axes \
-              scripts/Rsplit_surface scripts/Rsplit_surface.py \
-              scripts/clean-stream.py scripts/fg-graph scripts/truncate-stream \
-              scripts/gen-sfs-expand scripts/add-beam-params \
-              scripts/find-pairs scripts/plot-cc-and-scale.R \
-              scripts/ave-resolution scripts/crystal-frame-number \
-              scripts/plot-radius-resolution \
-              scripts/detector-shift scripts/turbo-index-lsf \
-              scripts/gaincal-to-saturation-map scripts/move-entire-detector \
-              scripts/split-by-mask scripts/turbo-index-slurm \
-              scripts/sum-peaks scripts/peakogram-stream scripts/eiger-badmap \
-              scripts/sum-hdf5-files
-
-EXTRA_DIST += $(script_DATA)
-
-
-DISTCHECK_CONFIGURE_FLAGS=--enable-gtk-doc
-
-mostlyclean-local: mostlyclean-version
-.PHONY: mostlyclean-version
-mostlyclean-version:
-	rm -f $(top_builddir)/version.h
-
-all: update_version_header
-.PHONY: version_header
-update_version_header:
-	$(top_srcdir)/version.sh $(top_srcdir)
diff --git a/autogen.sh b/autogen.sh
deleted file mode 100755
index 19503607..00000000
--- a/autogen.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-
-libtoolize --force --copy \
-&& aclocal -I m4 --force \
-&& gtkdocize --copy \
-&& autoheader --force \
-&& automake --add-missing --copy --force \
-&& autoconf --force
diff --git a/build-aux/snippet/_Noreturn.h b/build-aux/snippet/_Noreturn.h
deleted file mode 100644
index c44ad89b..00000000
--- a/build-aux/snippet/_Noreturn.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#if !defined _Noreturn && __STDC_VERSION__ < 201112
-# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
-      || 0x5110 <= __SUNPRO_C)
-#  define _Noreturn __attribute__ ((__noreturn__))
-# elif 1200 <= _MSC_VER
-#  define _Noreturn __declspec (noreturn)
-# else
-#  define _Noreturn
-# endif
-#endif
diff --git a/build-aux/snippet/arg-nonnull.h b/build-aux/snippet/arg-nonnull.h
deleted file mode 100644
index 9ee8b155..00000000
--- a/build-aux/snippet/arg-nonnull.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* A C macro for declaring that specific arguments must not be NULL.
-   Copyright (C) 2009-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published
-   by the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
-   that the values passed as arguments n, ..., m must be non-NULL pointers.
-   n = 1 stands for the first argument, n = 2 for the second argument etc.  */
-#ifndef _GL_ARG_NONNULL
-# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
-#  define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
-# else
-#  define _GL_ARG_NONNULL(params)
-# endif
-#endif
diff --git a/build-aux/snippet/c++defs.h b/build-aux/snippet/c++defs.h
deleted file mode 100644
index 67b12335..00000000
--- a/build-aux/snippet/c++defs.h
+++ /dev/null
@@ -1,271 +0,0 @@
-/* C++ compatible function declaration macros.
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published
-   by the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _GL_CXXDEFS_H
-#define _GL_CXXDEFS_H
-
-/* The three most frequent use cases of these macros are:
-
-   * For providing a substitute for a function that is missing on some
-     platforms, but is declared and works fine on the platforms on which
-     it exists:
-
-       #if @GNULIB_FOO@
-       # if !@HAVE_FOO@
-       _GL_FUNCDECL_SYS (foo, ...);
-       # endif
-       _GL_CXXALIAS_SYS (foo, ...);
-       _GL_CXXALIASWARN (foo);
-       #elif defined GNULIB_POSIXCHECK
-       ...
-       #endif
-
-   * For providing a replacement for a function that exists on all platforms,
-     but is broken/insufficient and needs to be replaced on some platforms:
-
-       #if @GNULIB_FOO@
-       # if @REPLACE_FOO@
-       #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-       #   undef foo
-       #   define foo rpl_foo
-       #  endif
-       _GL_FUNCDECL_RPL (foo, ...);
-       _GL_CXXALIAS_RPL (foo, ...);
-       # else
-       _GL_CXXALIAS_SYS (foo, ...);
-       # endif
-       _GL_CXXALIASWARN (foo);
-       #elif defined GNULIB_POSIXCHECK
-       ...
-       #endif
-
-   * For providing a replacement for a function that exists on some platforms
-     but is broken/insufficient and needs to be replaced on some of them and
-     is additionally either missing or undeclared on some other platforms:
-
-       #if @GNULIB_FOO@
-       # if @REPLACE_FOO@
-       #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-       #   undef foo
-       #   define foo rpl_foo
-       #  endif
-       _GL_FUNCDECL_RPL (foo, ...);
-       _GL_CXXALIAS_RPL (foo, ...);
-       # else
-       #  if !@HAVE_FOO@   or   if !@HAVE_DECL_FOO@
-       _GL_FUNCDECL_SYS (foo, ...);
-       #  endif
-       _GL_CXXALIAS_SYS (foo, ...);
-       # endif
-       _GL_CXXALIASWARN (foo);
-       #elif defined GNULIB_POSIXCHECK
-       ...
-       #endif
-*/
-
-/* _GL_EXTERN_C declaration;
-   performs the declaration with C linkage.  */
-#if defined __cplusplus
-# define _GL_EXTERN_C extern "C"
-#else
-# define _GL_EXTERN_C extern
-#endif
-
-/* _GL_FUNCDECL_RPL (func, rettype, parameters_and_attributes);
-   declares a replacement function, named rpl_func, with the given prototype,
-   consisting of return type, parameters, and attributes.
-   Example:
-     _GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
-                                  _GL_ARG_NONNULL ((1)));
- */
-#define _GL_FUNCDECL_RPL(func,rettype,parameters_and_attributes) \
-  _GL_FUNCDECL_RPL_1 (rpl_##func, rettype, parameters_and_attributes)
-#define _GL_FUNCDECL_RPL_1(rpl_func,rettype,parameters_and_attributes) \
-  _GL_EXTERN_C rettype rpl_func parameters_and_attributes
-
-/* _GL_FUNCDECL_SYS (func, rettype, parameters_and_attributes);
-   declares the system function, named func, with the given prototype,
-   consisting of return type, parameters, and attributes.
-   Example:
-     _GL_FUNCDECL_SYS (open, int, (const char *filename, int flags, ...)
-                                  _GL_ARG_NONNULL ((1)));
- */
-#define _GL_FUNCDECL_SYS(func,rettype,parameters_and_attributes) \
-  _GL_EXTERN_C rettype func parameters_and_attributes
-
-/* _GL_CXXALIAS_RPL (func, rettype, parameters);
-   declares a C++ alias called GNULIB_NAMESPACE::func
-   that redirects to rpl_func, if GNULIB_NAMESPACE is defined.
-   Example:
-     _GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
- */
-#define _GL_CXXALIAS_RPL(func,rettype,parameters) \
-  _GL_CXXALIAS_RPL_1 (func, rpl_##func, rettype, parameters)
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                                \
-    {                                                         \
-      rettype (*const func) parameters = ::rpl_func;          \
-    }                                                         \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_RPL_1(func,rpl_func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_RPL_CAST_1 (func, rpl_func, rettype, parameters);
-   is like  _GL_CXXALIAS_RPL_1 (func, rpl_func, rettype, parameters);
-   except that the C function rpl_func may have a slightly different
-   declaration.  A cast is used to silence the "invalid conversion" error
-   that would otherwise occur.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                                     \
-    {                                                              \
-      rettype (*const func) parameters =                           \
-        reinterpret_cast<rettype(*)parameters>(::rpl_func);        \
-    }                                                              \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_RPL_CAST_1(func,rpl_func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_SYS (func, rettype, parameters);
-   declares a C++ alias called GNULIB_NAMESPACE::func
-   that redirects to the system provided function func, if GNULIB_NAMESPACE
-   is defined.
-   Example:
-     _GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
- */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-  /* If we were to write
-       rettype (*const func) parameters = ::func;
-     like above in _GL_CXXALIAS_RPL_1, the compiler could optimize calls
-     better (remove an indirection through a 'static' pointer variable),
-     but then the _GL_CXXALIASWARN macro below would cause a warning not only
-     for uses of ::func but also for uses of GNULIB_NAMESPACE::func.  */
-# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                     \
-    {                                              \
-      static rettype (*func) parameters = ::func;  \
-    }                                              \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_SYS(func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_SYS_CAST (func, rettype, parameters);
-   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
-   except that the C function func may have a slightly different declaration.
-   A cast is used to silence the "invalid conversion" error that would
-   otherwise occur.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
-    namespace GNULIB_NAMESPACE                          \
-    {                                                   \
-      static rettype (*func) parameters =               \
-        reinterpret_cast<rettype(*)parameters>(::func); \
-    }                                                   \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_SYS_CAST(func,rettype,parameters) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIAS_SYS_CAST2 (func, rettype, parameters, rettype2, parameters2);
-   is like  _GL_CXXALIAS_SYS (func, rettype, parameters);
-   except that the C function is picked among a set of overloaded functions,
-   namely the one with rettype2 and parameters2.  Two consecutive casts
-   are used to silence the "cannot find a match" and "invalid conversion"
-   errors that would otherwise occur.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-  /* The outer cast must be a reinterpret_cast.
-     The inner cast: When the function is defined as a set of overloaded
-     functions, it works as a static_cast<>, choosing the designated variant.
-     When the function is defined as a single variant, it works as a
-     reinterpret_cast<>. The parenthesized cast syntax works both ways.  */
-# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
-    namespace GNULIB_NAMESPACE                                                \
-    {                                                                         \
-      static rettype (*func) parameters =                                     \
-        reinterpret_cast<rettype(*)parameters>(                               \
-          (rettype2(*)parameters2)(::func));                                  \
-    }                                                                         \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#else
-# define _GL_CXXALIAS_SYS_CAST2(func,rettype,parameters,rettype2,parameters2) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIASWARN (func);
-   causes a warning to be emitted when ::func is used but not when
-   GNULIB_NAMESPACE::func is used.  func must be defined without overloaded
-   variants.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIASWARN(func) \
-   _GL_CXXALIASWARN_1 (func, GNULIB_NAMESPACE)
-# define _GL_CXXALIASWARN_1(func,namespace) \
-   _GL_CXXALIASWARN_2 (func, namespace)
-/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
-   we enable the warning only when not optimizing.  */
-# if !__OPTIMIZE__
-#  define _GL_CXXALIASWARN_2(func,namespace) \
-    _GL_WARN_ON_USE (func, \
-                     "The symbol ::" #func " refers to the system function. " \
-                     "Use " #namespace "::" #func " instead.")
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-#  define _GL_CXXALIASWARN_2(func,namespace) \
-     extern __typeof__ (func) func
-# else
-#  define _GL_CXXALIASWARN_2(func,namespace) \
-     _GL_EXTERN_C int _gl_cxxalias_dummy
-# endif
-#else
-# define _GL_CXXALIASWARN(func) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-/* _GL_CXXALIASWARN1 (func, rettype, parameters_and_attributes);
-   causes a warning to be emitted when the given overloaded variant of ::func
-   is used but not when GNULIB_NAMESPACE::func is used.  */
-#if defined __cplusplus && defined GNULIB_NAMESPACE
-# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
-   _GL_CXXALIASWARN1_1 (func, rettype, parameters_and_attributes, \
-                        GNULIB_NAMESPACE)
-# define _GL_CXXALIASWARN1_1(func,rettype,parameters_and_attributes,namespace) \
-   _GL_CXXALIASWARN1_2 (func, rettype, parameters_and_attributes, namespace)
-/* To work around GCC bug <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43881>,
-   we enable the warning only when not optimizing.  */
-# if !__OPTIMIZE__
-#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
-    _GL_WARN_ON_USE_CXX (func, rettype, parameters_and_attributes, \
-                         "The symbol ::" #func " refers to the system function. " \
-                         "Use " #namespace "::" #func " instead.")
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
-     extern __typeof__ (func) func
-# else
-#  define _GL_CXXALIASWARN1_2(func,rettype,parameters_and_attributes,namespace) \
-     _GL_EXTERN_C int _gl_cxxalias_dummy
-# endif
-#else
-# define _GL_CXXALIASWARN1(func,rettype,parameters_and_attributes) \
-    _GL_EXTERN_C int _gl_cxxalias_dummy
-#endif
-
-#endif /* _GL_CXXDEFS_H */
diff --git a/build-aux/snippet/warn-on-use.h b/build-aux/snippet/warn-on-use.h
deleted file mode 100644
index 1c4d7bd4..00000000
--- a/build-aux/snippet/warn-on-use.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/* A C macro for emitting warnings if a function is used.
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published
-   by the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* _GL_WARN_ON_USE (function, "literal string") issues a declaration
-   for FUNCTION which will then trigger a compiler warning containing
-   the text of "literal string" anywhere that function is called, if
-   supported by the compiler.  If the compiler does not support this
-   feature, the macro expands to an unused extern declaration.
-
-   This macro is useful for marking a function as a potential
-   portability trap, with the intent that "literal string" include
-   instructions on the replacement function that should be used
-   instead.  However, one of the reasons that a function is a
-   portability trap is if it has the wrong signature.  Declaring
-   FUNCTION with a different signature in C is a compilation error, so
-   this macro must use the same type as any existing declaration so
-   that programs that avoid the problematic FUNCTION do not fail to
-   compile merely because they included a header that poisoned the
-   function.  But this implies that _GL_WARN_ON_USE is only safe to
-   use if FUNCTION is known to already have a declaration.  Use of
-   this macro implies that there must not be any other macro hiding
-   the declaration of FUNCTION; but undefining FUNCTION first is part
-   of the poisoning process anyway (although for symbols that are
-   provided only via a macro, the result is a compilation error rather
-   than a warning containing "literal string").  Also note that in
-   C++, it is only safe to use if FUNCTION has no overloads.
-
-   For an example, it is possible to poison 'getline' by:
-   - adding a call to gl_WARN_ON_USE_PREPARE([[#include <stdio.h>]],
-     [getline]) in configure.ac, which potentially defines
-     HAVE_RAW_DECL_GETLINE
-   - adding this code to a header that wraps the system <stdio.h>:
-     #undef getline
-     #if HAVE_RAW_DECL_GETLINE
-     _GL_WARN_ON_USE (getline, "getline is required by POSIX 2008, but"
-       "not universally present; use the gnulib module getline");
-     #endif
-
-   It is not possible to directly poison global variables.  But it is
-   possible to write a wrapper accessor function, and poison that
-   (less common usage, like &environ, will cause a compilation error
-   rather than issue the nice warning, but the end result of informing
-   the developer about their portability problem is still achieved):
-   #if HAVE_RAW_DECL_ENVIRON
-   static char ***rpl_environ (void) { return &environ; }
-   _GL_WARN_ON_USE (rpl_environ, "environ is not always properly declared");
-   # undef environ
-   # define environ (*rpl_environ ())
-   #endif
-   */
-#ifndef _GL_WARN_ON_USE
-
-# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
-/* A compiler attribute is available in gcc versions 4.3.0 and later.  */
-#  define _GL_WARN_ON_USE(function, message) \
-extern __typeof__ (function) function __attribute__ ((__warning__ (message)))
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-/* Verify the existence of the function.  */
-#  define _GL_WARN_ON_USE(function, message) \
-extern __typeof__ (function) function
-# else /* Unsupported.  */
-#  define _GL_WARN_ON_USE(function, message) \
-_GL_WARN_EXTERN_C int _gl_warn_on_use
-# endif
-#endif
-
-/* _GL_WARN_ON_USE_CXX (function, rettype, parameters_and_attributes, "string")
-   is like _GL_WARN_ON_USE (function, "string"), except that the function is
-   declared with the given prototype, consisting of return type, parameters,
-   and attributes.
-   This variant is useful for overloaded functions in C++. _GL_WARN_ON_USE does
-   not work in this case.  */
-#ifndef _GL_WARN_ON_USE_CXX
-# if 4 < __GNUC__ || (__GNUC__ == 4 && 3 <= __GNUC_MINOR__)
-#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
-extern rettype function parameters_and_attributes \
-     __attribute__ ((__warning__ (msg)))
-# elif __GNUC__ >= 3 && GNULIB_STRICT_CHECKING
-/* Verify the existence of the function.  */
-#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
-extern rettype function parameters_and_attributes
-# else /* Unsupported.  */
-#  define _GL_WARN_ON_USE_CXX(function,rettype,parameters_and_attributes,msg) \
-_GL_WARN_EXTERN_C int _gl_warn_on_use
-# endif
-#endif
-
-/* _GL_WARN_EXTERN_C declaration;
-   performs the declaration with C linkage.  */
-#ifndef _GL_WARN_EXTERN_C
-# if defined __cplusplus
-#  define _GL_WARN_EXTERN_C extern "C"
-# else
-#  define _GL_WARN_EXTERN_C extern
-# endif
-#endif
diff --git a/configure.ac b/configure.ac
deleted file mode 100644
index 30e803f7..00000000
--- a/configure.ac
+++ /dev/null
@@ -1,399 +0,0 @@
-dnl Process this file with autoconf to produce a configure script.
-
-AC_INIT([crystfel],[0.6.3],[taw@physics.org])
-AC_CONFIG_AUX_DIR([build-aux])
-AC_CONFIG_HEADERS([config.h])
-AM_INIT_AUTOMAKE([subdir-objects])
-
-AC_PROG_CC
-gl_EARLY
-AM_PROG_CC_C_O
-AC_PROG_CC_C99
-AC_PROG_AWK
-AC_PROG_INSTALL
-AC_PROG_LN_S
-AC_PROG_LIBTOOL
-AM_SILENT_RULES([yes])
-
-AC_HEADER_STDC
-AC_CHECK_HEADERS([fcntl.h stdlib.h unistd.h])
-AC_C_CONST
-AC_FUNC_MALLOC
-
-gl_INIT
-
-
-dnl Find HDF5
-AC_ARG_WITH(hdf5,
-[AS_HELP_STRING([--with-hdf5],
-                [specify location of HDF5 (instead of trying pkg-config)])],
-[
-    AC_MSG_NOTICE([Using your specified location for HDF5])
-    HDF5_CFLAGS="-I$withval/include"
-    HDF5_LIBS="-L$withval/lib -lhdf5"
-],
-[
-    AC_MSG_NOTICE([checking for HDF5 using pkg-config])
-    PKG_CHECK_MODULES([HDF5], [hdf5],
-    [
-        AC_MSG_NOTICE([Found HDF5 using pkg-config])
-    ],
-    [
-        AC_MSG_NOTICE([Did not find HDF5 using pkg-config.  Assuming default location.])
-        HDF5_CFLAGS=""
-        HDF5_LIBS="-lhdf5"
-    ])
-])
-
-dnl Check that HDF5 *actually* works...
-LIBS_SAVE=$LIBS
-LIBS=$HDF5_LIBS
-AC_CHECK_LIB([hdf5], [H5Fcreate], [],
-[
-   AC_MSG_ERROR([HDF5 not found!])
-])
-LIBS=$LIBS_SAVE
-
-
-AC_ARG_WITH(gsl,
-[AS_HELP_STRING([--with-gsl],
-                [specify location of GSL (instead of using pkg-config)])],
-[GSL_CFLAGS="-I$withval/include"
- GSL_LIBS="-L$withval/lib -lgsl -lgslcblas -lm"],
-[PKG_CHECK_MODULES([GSL], [gsl])])
-
-AC_ARG_ENABLE(cbf, AS_HELP_STRING([--disable-cbf], [Disable CBF file support]))
-AC_ARG_WITH(cbflib,
-            [Specify location of CBFlib headers and libraries])
-AC_MSG_CHECKING([whether to use CBFlib])
-AS_IF([test "x$enable_cbf" != "xno"],
-[
-   AC_MSG_RESULT([yes])
-   AS_IF([test "x$with_cbflib" != "x"],
-   [
-      dnl NB not ${with_cbflib}/include/cbflib, because cbflib installs
-      dnl its own HDF5 headers which we do not want in the include path
-      CBF_CFLAGS="-I${with_cbflib}/include"
-      dnl Fortunately no libhdf5.so in this folder
-      CBF_LIBS="-lcbf -L${with_cbflib}/lib"
-   ], [
-      AC_CHECK_LIB([cbf], [cbf_make_handle], [
-         CBF_LIBS="-lcbf"
-      ])
-   ])
-   SAVED_CPPFLAGS=$CPPFLAGS
-   CPPFLAGS="$CPPFLAGS $CBF_CFLAGS"
-   AC_CHECK_HEADERS([cbflib/cbf.h cbf/cbf.h],
-   [
-      have_cbflib=true
-   ])
-   CPPFLAGS=$SAVE_CPPFLAGS
-], [
-   AC_MSG_RESULT([no])
-])
-AS_IF([test x$have_cbflib = xtrue],
-[
-   AC_DEFINE([HAVE_CBFLIB], [1], [Define to 1 if CBFlib is available])
-   AC_MSG_NOTICE([CBFlib found.])
-])
-
-AC_ARG_WITH(opencl, AS_HELP_STRING([--with-opencl], [Use OpenCL]))
-AC_ARG_WITH(opencl_dir, AS_HELP_STRING([--with-opencl-dir],
-            [Specify location of OpenCL headers and libraries]))
-AC_MSG_CHECKING([whether to use OpenCL])
-AS_IF([test "x$with_opencl_dir" != "x"], [with_opencl=yes])
-AS_IF([test "x$with_opencl" == "xyes"],
-[
-   AC_MSG_RESULT([yes])
-   AS_IF([test "x$with_opencl_dir" != "x"],
-   [
-      dnl Path manually given
-      AC_MSG_CHECKING([cl.h])
-      AS_IF([test -f ${with_opencl_dir}/include/CL/cl.h],
-      [
-         AC_MSG_RESULT([${with_opencl_dir}/include/CL/cl.h])
-         OPENCL_CFLAGS="-I${with_opencl_dir}/include"
-         OPENCL_LIBS="-lOpenCL -L${with_opencl_dir}/lib64 -L${with_opencl_dir}/lib"
-         cl_cl_h=true
-         have_opencl=true
-      ], [
-         AS_IF([test -f ${with_opencl_dir}/include/cl.h],
-         [
-            AC_MSG_RESULT([${with_opencl_dir}/include/cl.h])
-            OPENCL_CFLAGS="-I${with_opencl_dir}/include/cl.h/include"
-            OPENCL_LIBS="-lOpenCL -L${with_opencl_dir}/lib64 -L${with_opencl_dir}/lib"
-            cl_cl_h=false
-            have_opencl=true
-         ], [
-            AC_MSG_RESULT([not found.])
-            AC_MSG_ERROR([Could not find cl.h])
-         ])
-      ])
-
-   ], [
-
-      dnl Attempt to automatically find the headers
-      AC_MSG_CHECKING([cl.h])
-      AS_IF([test -f /System/Library/Frameworks/OpenCL.framework/Headers/cl.h],
-      [
-         AC_MSG_RESULT([/System/Library/Frameworks/OpenCL.framework/Headers/cl.h])
-         OPENCL_CFLAGS="-I/System/Library/Frameworks/OpenCL.framework/Headers"
-         OPENCL_LIBS="-framework OpenCL"
-      ], [
-         AS_IF([test -f /opt/cuda/cuda/include/CL/cl.h],
-         [
-            AC_MSG_RESULT([/opt/cuda/cuda/include/CL/cl.h])
-            OPENCL_CFLAGS="-I/opt/cuda/cuda/include"
-            OPENCL_LIBS="-lOpenCL"
-            cl_cl_h=true
-         ], [
-            AS_IF([test -f /opt/cuda/include/CL/cl.h],
-            [
-               AC_MSG_RESULT([/opt/cuda/include/CL/cl.h])
-               OPENCL_CFLAGS="-I/opt/cuda/include"
-               OPENCL_LIBS="-lOpenCL"
-               cl_cl_h=true
-            ], [
-               AC_MSG_RESULT([not found, assuming /usr/include/CL/cl.h])
-               OPENCL_CFLAGS=""
-               OPENCL_LIBS="-lOpenCL"
-               cl_cl_h=true
-             ])
-         ])
-      ])
-      have_opencl=true
-   ])
-], [
-   AC_MSG_RESULT([no])
-])
-AS_IF([test x$cl_cl_h = xtrue],
-[
-   AC_DEFINE([HAVE_CL_CL_H], [1], [Define to 1 if CL/cl.h should be used])
-])
-AS_IF([test x$have_opencl = xtrue],
-[
-   AC_DEFINE([HAVE_OPENCL], [1], [Define to 1 if OpenCL is available])
-])
-
-AC_ARG_ENABLE(gtk, AS_HELP_STRING([--disable-gtk], [Disable GTK+/GLib]))
-have_gtk=false
-AC_MSG_CHECKING([whether to use GTK])
-AS_IF([test "x$enable_gtk" != "xno"],
-[
-   AC_MSG_RESULT([yes])
-   AM_PATH_GTK_2_0(2.0.0,
-   [
-      have_gtk=true
-      AC_DEFINE([HAVE_GTK], [1], [Define to 1 if GTK and GDK are available])
-   ],
-   [
-      AC_MSG_WARN([GTK not found.  hdfsee will not be built.])
-   ])
-],
-[
-   AC_MSG_RESULT([no])
-])
-
-
-AC_MSG_CHECKING([whether to use PNG])
-AC_ARG_ENABLE([png],
-    AS_HELP_STRING([--disable-png], [Disable the use of libPNG]))
-AS_IF([test "x$enable_png" != "xno"],
-[
-   AC_MSG_RESULT([yes])
-   PKG_CHECK_MODULES([libPNG], [libpng >= 1.2.0],
-   [
-      AC_DEFINE([HAVE_LIBPNG], [1], [Define to 1 if libPNG is available])
-      have_libpng=true
-   ], [
-      have_libpng=false
-   ])
-],[
-   AC_MSG_RESULT([no])
-])
-
-
-AC_MSG_CHECKING([whether to use TIFF])
-AC_ARG_ENABLE([tiff],
-    AS_HELP_STRING([--disable-tiff], [Disable the use of libTIFF]))
-AS_IF([test "x$enable_tiff" != "xno"],
-[
-   AC_MSG_RESULT([yes])
-   AC_ARG_WITH(libtiff,
-   [AS_HELP_STRING([--with-libtiff], [specify location of libTIFF library])],
-   [
-      LIBTIFF_CFLAGS="-I$withval/include"
-      LIBTIFF_LIBS="-L$withval/lib -ltiff"
-      have_libtiff=true
-   ], [
-      AC_CHECK_LIB([tiff], [TIFFOpen], [
-         have_libtiff=true
-         LIBTIFF_LIBS="-ltiff"
-      ])
-   ])
-], [
-   AC_MSG_RESULT([no])
-])
-AS_IF([test x$have_libtiff = xtrue],
-[
-   AC_DEFINE([HAVE_TIFF], [1], [Define to 1 if libTIFF is available])
-])
-
-
-AC_MSG_CHECKING([whether to use Cairo])
-AC_ARG_ENABLE([cairo],
-              AS_HELP_STRING([--disable-cairo], [Disable the use of Cairo]))
-AS_IF([test "x$enable_cairo" != "xno"],
-[
-   AC_MSG_RESULT([yes])
-   PKG_CHECK_MODULES([Cairo], [cairo >= 1.2.0],
-   [
-      have_cairo=true
-      AC_DEFINE([HAVE_CAIRO], [1], [Define to 1 if Cairo is available])
-   ], [
-      have_cairo=false
-   ])
-], [
-   AC_MSG_RESULT([no])
-])
-
-
-AC_MSG_CHECKING([whether to use Pango])
-AC_ARG_ENABLE([pango],
-              AS_HELP_STRING([--disable-pango], [Disable the use of Pango]))
-AS_IF([test "x$enable_pango" != "xno"],
-[
-   AC_MSG_RESULT([yes])
-   PKG_CHECK_MODULES([Pango], [pango >= 1.0.0],
-   [
-      have_pango=true
-      AC_DEFINE([HAVE_PANGO], [1], [Define to 1 if Pango is available])
-   ], [
-      have_pango=false
-   ])
-   PKG_CHECK_MODULES([PangoCairo], [pangocairo],
-   [
-      have_pangocairo=true
-      AC_DEFINE([HAVE_PANGOCAIRO], [1],
-                [Define to 1 if PangoCairo is available])
-   ], [
-      have_pangocairo=false
-   ])
-], [
-   AC_MSG_RESULT([no])
-])
-
-
-have_gdk_pixbuf=false
-AC_MSG_CHECKING([whether to use GDK-pixbuf])
-AC_ARG_ENABLE([gdk-pixbuf], AS_HELP_STRING([--disable-gdk-pixbuf],
-                                           [Disable the use of gdk-pixbuf]))
-AS_IF([test "x$enable_gdk_pixbuf" != "xno"],
-[
-   AC_MSG_RESULT([yes])
-
-   PKG_CHECK_MODULES([GDK_pixbuf_2], [gdk-pixbuf-2.0],
-   [
-      have_gdk_pixbuf=true
-   ], [
-      PKG_CHECK_MODULES([GDK_pixbuf], [gdk-pixbuf], [],
-      [
-         have_gdk_pixbuf=true
-      ])
-   ])
-], [
-   AC_MSG_RESULT([no])
-])
-
-AS_IF([test "$have_gdk_pixbuf" != "false"],
-[
-  AC_DEFINE([HAVE_GDK_PIXBUF], [1], [Define to 1 if gdk-pixbuf is available])
-])
-
-
-AC_CHECK_LIB([pthread], [sched_setaffinity], [
-   AC_DEFINE([HAVE_CPU_AFFINITY], [1],
-             [Define to 1 if sched_setaffinity is available.])
-])
-
-
-AC_CHECK_LIB([rt], [clock_gettime],
-[
-   AC_DEFINE([HAVE_CLOCK_GETTIME], [1],
-             [Define to 1 if clock_gettime is available.])
-   TIMER_LIBS="-lrt"
-], [
-   AC_MSG_WARN([Falling back on gettimeofday().])
-   AC_MSG_WARN([Time intervals may not be correct in certain circumstances.])
-])
-
-AC_ARG_WITH(fftw,
-[AS_HELP_STRING([--with-ffftw],
-                [specify location of FFTW (instead of using pkg-config)])],
-[FFTW_CFLAGS="-I$withflag/include"
- FFTW_LIBS="-L$withval/lib -L$withval/lib64 -lfftw3"
- have_fftw=true],
-[PKG_CHECK_MODULES([FFTW], [fftw3],
-[
-   have_fftw=true
-], [
-   AC_MSG_WARN([asdf indexing wil not be available.])
-   have_fftw=false
-])])
-AS_IF([test x$have_fftw = xtrue],
-[
-   AC_DEFINE([HAVE_FFTW], [1], [Define to 1 if FFTW is available])
-])
-
-AX_WITH_CURSES
-
-dnl Conditionals...
-AM_CONDITIONAL([HAVE_OPENCL], test x$have_opencl = xtrue)
-
-AM_CONDITIONAL([BUILD_HDFSEE], test x$have_gdk_pixbuf = xtrue \
-                                -a "x$have_gtk" = "xtrue" \
-                                -a "x$have_cairo" = "xtrue")
-
-AM_CONDITIONAL([BUILD_EXPLORER], test "x$have_gtk" = "xtrue" \
-                                  -a "x$have_cairo" = "xtrue")
-
-AM_CONDITIONAL([HAVE_CAIRO], test x$have_cairo = xtrue)
-
-AM_CONDITIONAL([HAVE_PANGOCAIRO], test x$have_pangocairo = xtrue)
-
-AM_CONDITIONAL([HAVE_PANGO], test x$have_pango = xtrue)
-
-AM_CONDITIONAL([HAVE_FFTW], test x$have_fftw = xtrue)
-
-gl_IGNORE_UNUSED_LIBRARIES
-
-
-MAIN_CFLAGS="$CFLAGS $HDF5_CFLAGS $GSL_CFLAGS $OPENCL_CFLAGS -pthread"
-MAIN_CFLAGS="$MAIN_CFLAGS $GTK_CFLAGS $LIBTIFF_CFLAGS -D_GNU_SOURCE "
-MAIN_CFLAGS="$MAIN_CFLAGS $libPNG_CFLAGS $Cairo_CFLAGS $GDK_pixbuf_CFLAGS"
-MAIN_CFLAGS="$MAIN_CFLAGS $GDK_pixbuf_2_CFLAGS $FFTW_CFLAGS $Pango_CFLAGS"
-MAIN_CFLAGS="$MAIN_CFLAGS $PangoCairo_CFLAGS"
-AC_SUBST([MAIN_CFLAGS])
-
-LIBCRYSTFEL_CFLAGS="$CFLAGS $HDF5_CFLAGS $GSL_CFLAGS $FFTW_CFLAGS $CBF_CFLAGS"
-AC_SUBST([LIBCRYSTFEL_CFLAGS])
-
-MAIN_LIBS="$LIBS $HDF5_LIBS -lm -lz $GSL_LIBS $GTK_LIBS $OPENCL_LIBS -pthread"
-MAIN_LIBS="$MAIN_LIBS $LIBTIFF_LIBS $libPNG_LIBS $Cairo_LIBS $GDK_pixbuf_LIBS"
-MAIN_LIBS="$MAIN_LIBS $GDK_pixbuf_2_LIBS $TIMER_LIBS $FFTW_LIBS"
-MAIN_LIBS="$MAIN_LIBS $Pango_LIBS $PangoCairo_LIBS $LDFLAGS"
-AC_SUBST([MAIN_LIBS])
-
-LIBCRYSTFEL_LIBS="$LIBS $HDF5_LIBS $GSL_LIBS $FFTW_LIBS $CURSES_LIB $LDFLAGS"
-LIBCRYSTFEL_LIBS="$LIBCRYSTFEL_LIBS -pthread $CBF_LIBS"
-AC_SUBST([LIBCRYSTFEL_LIBS])
-
-GTK_DOC_CHECK([1.9],[--flavour no-tmpl])
-AC_CONFIG_MACRO_DIR(m4)
-
-HTML_DIR=${docdir}/reference/libcrystfel
-
-
-AC_CONFIG_FILES(Makefile lib/Makefile doc/reference/libcrystfel/Makefile libcrystfel/Makefile)
-AC_CONFIG_FILES(libcrystfel/crystfel.pc)
-AC_OUTPUT
diff --git a/doc/reference/libcrystfel/Makefile.am b/doc/reference/libcrystfel/Makefile.am
deleted file mode 100644
index e4f49b03..00000000
--- a/doc/reference/libcrystfel/Makefile.am
+++ /dev/null
@@ -1,102 +0,0 @@
-## Process this file with automake to produce Makefile.in
-
-# We require automake 1.6 at least.
-AUTOMAKE_OPTIONS = 1.6
-
-# This is a blank Makefile.am for using gtk-doc.
-# Copy this to your project's API docs directory and modify the variables to
-# suit your project. See the GTK+ Makefiles in gtk+/docs/reference for examples
-# of using the various options.
-
-# The name of the module, e.g. 'glib'.
-DOC_MODULE=CrystFEL
-
-# Uncomment for versioned docs and specify the version of the module, e.g. '2'.
-#DOC_MODULE_VERSION=2
-
-
-# The top-level SGML file. You can change this if you want to.
-DOC_MAIN_SGML_FILE=$(DOC_MODULE)-docs.sgml
-
-# Directories containing the source code, relative to $(srcdir).
-# gtk-doc will search all .c and .h files beneath these paths
-# for inline comments documenting functions and macros.
-# e.g. DOC_SOURCE_DIR=../../../gtk ../../../gdk
-DOC_SOURCE_DIR=../../../libcrystfel/src
-
-# Extra options to pass to gtkdoc-scangobj. Not normally needed.
-SCANGOBJ_OPTIONS=
-
-# Extra options to supply to gtkdoc-scan.
-# e.g. SCAN_OPTIONS=--deprecated-guards="GTK_DISABLE_DEPRECATED"
-SCAN_OPTIONS=
-
-# Extra options to supply to gtkdoc-mkdb.
-# e.g. MKDB_OPTIONS=--sgml-mode --output-format=xml
-MKDB_OPTIONS=--sgml-mode --output-format=xml
-
-# Extra options to supply to gtkdoc-mktmpl
-# e.g. MKTMPL_OPTIONS=--only-section-tmpl
-MKTMPL_OPTIONS=
-
-# Extra options to supply to gtkdoc-mkhtml
-MKHTML_OPTIONS=
-
-# Extra options to supply to gtkdoc-fixref. Not normally needed.
-# e.g. FIXXREF_OPTIONS=--extra-dir=../gdk-pixbuf/html --extra-dir=../gdk/html
-FIXXREF_OPTIONS=
-
-# Used for dependencies. The docs will be rebuilt if any of these change.
-# e.g. HFILE_GLOB=$(top_srcdir)/gtk/*.h
-# e.g. CFILE_GLOB=$(top_srcdir)/gtk/*.c
-HFILE_GLOB=$(top_srcdir)/libcrystfel/src/*.h
-CFILE_GLOB=$(top_srcdir)/libcrystfel/src/*.c
-
-# Extra header to include when scanning, which are not under DOC_SOURCE_DIR
-# e.g. EXTRA_HFILES=$(top_srcdir}/contrib/extra.h
-EXTRA_HFILES=
-
-# Header files to ignore when scanning. Use base file name, no paths
-# e.g. IGNORE_HFILES=gtkdebug.h gtkintl.h
-IGNORE_HFILES=
-
-# Images to copy into HTML directory.
-# e.g. HTML_IMAGES=$(top_srcdir)/gtk/stock-icons/stock_about_24.png
-HTML_IMAGES=
-
-# Extra SGML files that are included by $(DOC_MAIN_SGML_FILE).
-# e.g. content_files=running.sgml building.sgml changes-2.0.sgml
-content_files=
-
-# SGML files where gtk-doc abbrevations (#GtkWidget) are expanded
-# These files must be listed here *and* in content_files
-# e.g. expand_content_files=running.sgml
-expand_content_files=
-
-# CFLAGS and LDFLAGS for compiling gtkdoc-scangobj with your library.
-# Only needed if you are using gtkdoc-scangobj to dynamically query widget
-# signals and properties.
-# e.g. GTKDOC_CFLAGS=-I$(top_srcdir) -I$(top_builddir) $(GTK_DEBUG_FLAGS)
-# e.g. GTKDOC_LIBS=$(top_builddir)/gtk/$(gtktargetlib)
-GTKDOC_CFLAGS=
-GTKDOC_LIBS=
-
-# This includes the standard gtk-doc make rules, copied by gtkdocize.
-include $(top_srcdir)/gtk-doc.make
-
-# Other files to distribute
-# e.g. EXTRA_DIST += version.xml.in
-EXTRA_DIST +=
-
-# Files not to distribute
-# for --rebuild-types in $(SCAN_OPTIONS), e.g. $(DOC_MODULE).types
-# for --rebuild-sections in $(SCAN_OPTIONS) e.g. $(DOC_MODULE)-sections.txt
-#DISTCLEANFILES +=
-
-# Comment this out if you want your docs-status tested during 'make check'
-#if ENABLE_GTK_DOC
-#TESTS_ENVIRONMENT = cd $(srcsrc) &&
-#TESTS = $(GTKDOC_CHECK)
-#endif
-
--include $(top_srcdir)/git.mk
diff --git a/lib/.gitignore b/lib/.gitignore
deleted file mode 100644
index 37032a8a..00000000
--- a/lib/.gitignore
+++ /dev/null
@@ -1,18 +0,0 @@
-stddef.h
-string.h
-arg-nonnull.h
-c++defs.h
-warn-on-use.h
-libgnu.a
-.deps
-*.o
-*.lo
-fcntl.h
-pty.h
-stdlib.h
-stdalign.h
-unistd.h
-sys/ioctl.h
-sys/socket.h
-sys/types.h
-sys/uio.h
diff --git a/lib/Makefile.am b/lib/Makefile.am
deleted file mode 100644
index c1c32864..00000000
--- a/lib/Makefile.am
+++ /dev/null
@@ -1,886 +0,0 @@
-## DO NOT EDIT! GENERATED AUTOMATICALLY!
-## Process this file with automake to produce Makefile.in.
-# Copyright (C) 2002-2014 Free Software Foundation, Inc.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This file is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this file.  If not, see <http://www.gnu.org/licenses/>.
-#
-# As a special exception to the GNU General Public License,
-# this file may be distributed as part of a program that
-# contains a configuration script generated by Autoconf, under
-# the same distribution terms as the rest of that program.
-#
-# Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --no-conditional-dependencies --libtool --macro-prefix=gl forkpty lib-ignore strndup
-
-AUTOMAKE_OPTIONS = 1.9.6 gnits
-
-SUBDIRS =
-noinst_HEADERS =
-noinst_LIBRARIES =
-noinst_LTLIBRARIES =
-EXTRA_DIST =
-BUILT_SOURCES =
-SUFFIXES =
-MOSTLYCLEANFILES = core *.stackdump
-MOSTLYCLEANDIRS =
-CLEANFILES =
-DISTCLEANFILES =
-MAINTAINERCLEANFILES =
-
-AM_CPPFLAGS =
-AM_CFLAGS =
-
-noinst_LTLIBRARIES += libgnu.la
-
-libgnu_la_SOURCES =
-libgnu_la_LIBADD = $(gl_LTLIBOBJS)
-libgnu_la_DEPENDENCIES = $(gl_LTLIBOBJS)
-EXTRA_libgnu_la_SOURCES =
-libgnu_la_LDFLAGS = $(AM_LDFLAGS)
-libgnu_la_LDFLAGS += -no-undefined
-libgnu_la_LDFLAGS += $(PTY_LIB)
-
-## begin gnulib module absolute-header
-
-# Use this preprocessor expression to decide whether #include_next works.
-# Do not rely on a 'configure'-time test for this, since the expression
-# might appear in an installed header, which is used by some other compiler.
-HAVE_INCLUDE_NEXT = (__GNUC__ || 60000000 <= __DECC_VER)
-
-## end   gnulib module absolute-header
-
-## begin gnulib module errno
-
-BUILT_SOURCES += $(ERRNO_H)
-
-# We need the following in order to create <errno.h> when the system
-# doesn't have one that is POSIX compliant.
-if GL_GENERATE_ERRNO_H
-errno.h: errno.in.h $(top_builddir)/config.status
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_ERRNO_H''@|$(NEXT_ERRNO_H)|g' \
-	      -e 's|@''EMULTIHOP_HIDDEN''@|$(EMULTIHOP_HIDDEN)|g' \
-	      -e 's|@''EMULTIHOP_VALUE''@|$(EMULTIHOP_VALUE)|g' \
-	      -e 's|@''ENOLINK_HIDDEN''@|$(ENOLINK_HIDDEN)|g' \
-	      -e 's|@''ENOLINK_VALUE''@|$(ENOLINK_VALUE)|g' \
-	      -e 's|@''EOVERFLOW_HIDDEN''@|$(EOVERFLOW_HIDDEN)|g' \
-	      -e 's|@''EOVERFLOW_VALUE''@|$(EOVERFLOW_VALUE)|g' \
-	      < $(srcdir)/errno.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-else
-errno.h: $(top_builddir)/config.status
-	rm -f $@
-endif
-MOSTLYCLEANFILES += errno.h errno.h-t
-
-EXTRA_DIST += errno.in.h
-
-## end   gnulib module errno
-
-## begin gnulib module fcntl-h
-
-BUILT_SOURCES += fcntl.h
-
-# We need the following in order to create <fcntl.h> when the system
-# doesn't have one that works with the given compiler.
-fcntl.h: fcntl.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_FCNTL_H''@|$(NEXT_FCNTL_H)|g' \
-	      -e 's/@''GNULIB_FCNTL''@/$(GNULIB_FCNTL)/g' \
-	      -e 's/@''GNULIB_NONBLOCKING''@/$(GNULIB_NONBLOCKING)/g' \
-	      -e 's/@''GNULIB_OPEN''@/$(GNULIB_OPEN)/g' \
-	      -e 's/@''GNULIB_OPENAT''@/$(GNULIB_OPENAT)/g' \
-	      -e 's|@''HAVE_FCNTL''@|$(HAVE_FCNTL)|g' \
-	      -e 's|@''HAVE_OPENAT''@|$(HAVE_OPENAT)|g' \
-	      -e 's|@''REPLACE_FCNTL''@|$(REPLACE_FCNTL)|g' \
-	      -e 's|@''REPLACE_OPEN''@|$(REPLACE_OPEN)|g' \
-	      -e 's|@''REPLACE_OPENAT''@|$(REPLACE_OPENAT)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
-	      < $(srcdir)/fcntl.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += fcntl.h fcntl.h-t
-
-EXTRA_DIST += fcntl.in.h
-
-## end   gnulib module fcntl-h
-
-## begin gnulib module fd-hook
-
-libgnu_la_SOURCES += fd-hook.c
-
-EXTRA_DIST += fd-hook.h
-
-## end   gnulib module fd-hook
-
-## begin gnulib module forkpty
-
-
-EXTRA_DIST += forkpty.c
-
-EXTRA_libgnu_la_SOURCES += forkpty.c
-
-## end   gnulib module forkpty
-
-## begin gnulib module ioctl
-
-
-EXTRA_DIST += ioctl.c w32sock.h
-
-EXTRA_libgnu_la_SOURCES += ioctl.c
-
-## end   gnulib module ioctl
-
-## begin gnulib module login_tty
-
-
-EXTRA_DIST += login_tty.c
-
-EXTRA_libgnu_la_SOURCES += login_tty.c
-
-## end   gnulib module login_tty
-
-## begin gnulib module msvc-inval
-
-
-EXTRA_DIST += msvc-inval.c msvc-inval.h
-
-EXTRA_libgnu_la_SOURCES += msvc-inval.c
-
-## end   gnulib module msvc-inval
-
-## begin gnulib module msvc-nothrow
-
-
-EXTRA_DIST += msvc-nothrow.c msvc-nothrow.h
-
-EXTRA_libgnu_la_SOURCES += msvc-nothrow.c
-
-## end   gnulib module msvc-nothrow
-
-## begin gnulib module openpty
-
-
-EXTRA_DIST += openpty.c
-
-EXTRA_libgnu_la_SOURCES += openpty.c
-
-## end   gnulib module openpty
-
-## begin gnulib module posix_openpt
-
-
-EXTRA_DIST += posix_openpt.c
-
-EXTRA_libgnu_la_SOURCES += posix_openpt.c
-
-## end   gnulib module posix_openpt
-
-## begin gnulib module pty
-
-BUILT_SOURCES += pty.h
-
-# We need the following in order to create <pty.h> when the system
-# doesn't have one that works with the given compiler.
-pty.h: pty.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(WARN_ON_USE_H)
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''HAVE_PTY_H''@|$(HAVE_PTY_H)|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_PTY_H''@|$(NEXT_PTY_H)|g' \
-	      -e 's/@''GNULIB_FORKPTY''@/$(GNULIB_FORKPTY)/g' \
-	      -e 's/@''GNULIB_OPENPTY''@/$(GNULIB_OPENPTY)/g' \
-	      -e 's|@''HAVE_UTIL_H''@|$(HAVE_UTIL_H)|g' \
-	      -e 's|@''HAVE_LIBUTIL_H''@|$(HAVE_LIBUTIL_H)|g' \
-	      -e 's|@''HAVE_FORKPTY''@|$(HAVE_FORKPTY)|g' \
-	      -e 's|@''HAVE_OPENPTY''@|$(HAVE_OPENPTY)|g' \
-	      -e 's|@''REPLACE_FORKPTY''@|$(REPLACE_FORKPTY)|g' \
-	      -e 's|@''REPLACE_OPENPTY''@|$(REPLACE_OPENPTY)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
-	      < $(srcdir)/pty.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += pty.h pty.h-t
-
-EXTRA_DIST += pty.in.h
-
-## end   gnulib module pty
-
-## begin gnulib module snippet/_Noreturn
-
-# Because this Makefile snippet defines a variable used by other
-# gnulib Makefile snippets, it must be present in all Makefile.am that
-# need it. This is ensured by the applicability 'all' defined above.
-
-_NORETURN_H=$(top_srcdir)/build-aux/snippet/_Noreturn.h
-
-EXTRA_DIST += $(top_srcdir)/build-aux/snippet/_Noreturn.h
-
-## end   gnulib module snippet/_Noreturn
-
-## begin gnulib module snippet/arg-nonnull
-
-# The BUILT_SOURCES created by this Makefile snippet are not used via #include
-# statements but through direct file reference. Therefore this snippet must be
-# present in all Makefile.am that need it. This is ensured by the applicability
-# 'all' defined above.
-
-BUILT_SOURCES += arg-nonnull.h
-# The arg-nonnull.h that gets inserted into generated .h files is the same as
-# build-aux/snippet/arg-nonnull.h, except that it has the copyright header cut
-# off.
-arg-nonnull.h: $(top_srcdir)/build-aux/snippet/arg-nonnull.h
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	sed -n -e '/GL_ARG_NONNULL/,$$p' \
-	  < $(top_srcdir)/build-aux/snippet/arg-nonnull.h \
-	  > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += arg-nonnull.h arg-nonnull.h-t
-
-ARG_NONNULL_H=arg-nonnull.h
-
-EXTRA_DIST += $(top_srcdir)/build-aux/snippet/arg-nonnull.h
-
-## end   gnulib module snippet/arg-nonnull
-
-## begin gnulib module snippet/c++defs
-
-# The BUILT_SOURCES created by this Makefile snippet are not used via #include
-# statements but through direct file reference. Therefore this snippet must be
-# present in all Makefile.am that need it. This is ensured by the applicability
-# 'all' defined above.
-
-BUILT_SOURCES += c++defs.h
-# The c++defs.h that gets inserted into generated .h files is the same as
-# build-aux/snippet/c++defs.h, except that it has the copyright header cut off.
-c++defs.h: $(top_srcdir)/build-aux/snippet/c++defs.h
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	sed -n -e '/_GL_CXXDEFS/,$$p' \
-	  < $(top_srcdir)/build-aux/snippet/c++defs.h \
-	  > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += c++defs.h c++defs.h-t
-
-CXXDEFS_H=c++defs.h
-
-EXTRA_DIST += $(top_srcdir)/build-aux/snippet/c++defs.h
-
-## end   gnulib module snippet/c++defs
-
-## begin gnulib module snippet/warn-on-use
-
-BUILT_SOURCES += warn-on-use.h
-# The warn-on-use.h that gets inserted into generated .h files is the same as
-# build-aux/snippet/warn-on-use.h, except that it has the copyright header cut
-# off.
-warn-on-use.h: $(top_srcdir)/build-aux/snippet/warn-on-use.h
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	sed -n -e '/^.ifndef/,$$p' \
-	  < $(top_srcdir)/build-aux/snippet/warn-on-use.h \
-	  > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += warn-on-use.h warn-on-use.h-t
-
-WARN_ON_USE_H=warn-on-use.h
-
-EXTRA_DIST += $(top_srcdir)/build-aux/snippet/warn-on-use.h
-
-## end   gnulib module snippet/warn-on-use
-
-## begin gnulib module stdalign
-
-BUILT_SOURCES += $(STDALIGN_H)
-
-# We need the following in order to create <stdalign.h> when the system
-# doesn't have one that works.
-if GL_GENERATE_STDALIGN_H
-stdalign.h: stdalign.in.h $(top_builddir)/config.status
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  cat $(srcdir)/stdalign.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-else
-stdalign.h: $(top_builddir)/config.status
-	rm -f $@
-endif
-MOSTLYCLEANFILES += stdalign.h stdalign.h-t
-
-EXTRA_DIST += stdalign.in.h
-
-## end   gnulib module stdalign
-
-## begin gnulib module stddef
-
-BUILT_SOURCES += $(STDDEF_H)
-
-# We need the following in order to create <stddef.h> when the system
-# doesn't have one that works with the given compiler.
-if GL_GENERATE_STDDEF_H
-stddef.h: stddef.in.h $(top_builddir)/config.status
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_STDDEF_H''@|$(NEXT_STDDEF_H)|g' \
-	      -e 's|@''HAVE_WCHAR_T''@|$(HAVE_WCHAR_T)|g' \
-	      -e 's|@''REPLACE_NULL''@|$(REPLACE_NULL)|g' \
-	      < $(srcdir)/stddef.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-else
-stddef.h: $(top_builddir)/config.status
-	rm -f $@
-endif
-MOSTLYCLEANFILES += stddef.h stddef.h-t
-
-EXTRA_DIST += stddef.in.h
-
-## end   gnulib module stddef
-
-## begin gnulib module stdlib
-
-BUILT_SOURCES += stdlib.h
-
-# We need the following in order to create <stdlib.h> when the system
-# doesn't have one that works with the given compiler.
-stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
-  $(_NORETURN_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_STDLIB_H''@|$(NEXT_STDLIB_H)|g' \
-	      -e 's/@''GNULIB__EXIT''@/$(GNULIB__EXIT)/g' \
-	      -e 's/@''GNULIB_ATOLL''@/$(GNULIB_ATOLL)/g' \
-	      -e 's/@''GNULIB_CALLOC_POSIX''@/$(GNULIB_CALLOC_POSIX)/g' \
-	      -e 's/@''GNULIB_CANONICALIZE_FILE_NAME''@/$(GNULIB_CANONICALIZE_FILE_NAME)/g' \
-	      -e 's/@''GNULIB_GETLOADAVG''@/$(GNULIB_GETLOADAVG)/g' \
-	      -e 's/@''GNULIB_GETSUBOPT''@/$(GNULIB_GETSUBOPT)/g' \
-	      -e 's/@''GNULIB_GRANTPT''@/$(GNULIB_GRANTPT)/g' \
-	      -e 's/@''GNULIB_MALLOC_POSIX''@/$(GNULIB_MALLOC_POSIX)/g' \
-	      -e 's/@''GNULIB_MBTOWC''@/$(GNULIB_MBTOWC)/g' \
-	      -e 's/@''GNULIB_MKDTEMP''@/$(GNULIB_MKDTEMP)/g' \
-	      -e 's/@''GNULIB_MKOSTEMP''@/$(GNULIB_MKOSTEMP)/g' \
-	      -e 's/@''GNULIB_MKOSTEMPS''@/$(GNULIB_MKOSTEMPS)/g' \
-	      -e 's/@''GNULIB_MKSTEMP''@/$(GNULIB_MKSTEMP)/g' \
-	      -e 's/@''GNULIB_MKSTEMPS''@/$(GNULIB_MKSTEMPS)/g' \
-	      -e 's/@''GNULIB_POSIX_OPENPT''@/$(GNULIB_POSIX_OPENPT)/g' \
-	      -e 's/@''GNULIB_PTSNAME''@/$(GNULIB_PTSNAME)/g' \
-	      -e 's/@''GNULIB_PTSNAME_R''@/$(GNULIB_PTSNAME_R)/g' \
-	      -e 's/@''GNULIB_PUTENV''@/$(GNULIB_PUTENV)/g' \
-	      -e 's/@''GNULIB_RANDOM''@/$(GNULIB_RANDOM)/g' \
-	      -e 's/@''GNULIB_RANDOM_R''@/$(GNULIB_RANDOM_R)/g' \
-	      -e 's/@''GNULIB_REALLOC_POSIX''@/$(GNULIB_REALLOC_POSIX)/g' \
-	      -e 's/@''GNULIB_REALPATH''@/$(GNULIB_REALPATH)/g' \
-	      -e 's/@''GNULIB_RPMATCH''@/$(GNULIB_RPMATCH)/g' \
-	      -e 's/@''GNULIB_SECURE_GETENV''@/$(GNULIB_SECURE_GETENV)/g' \
-	      -e 's/@''GNULIB_SETENV''@/$(GNULIB_SETENV)/g' \
-	      -e 's/@''GNULIB_STRTOD''@/$(GNULIB_STRTOD)/g' \
-	      -e 's/@''GNULIB_STRTOLL''@/$(GNULIB_STRTOLL)/g' \
-	      -e 's/@''GNULIB_STRTOULL''@/$(GNULIB_STRTOULL)/g' \
-	      -e 's/@''GNULIB_SYSTEM_POSIX''@/$(GNULIB_SYSTEM_POSIX)/g' \
-	      -e 's/@''GNULIB_UNLOCKPT''@/$(GNULIB_UNLOCKPT)/g' \
-	      -e 's/@''GNULIB_UNSETENV''@/$(GNULIB_UNSETENV)/g' \
-	      -e 's/@''GNULIB_WCTOMB''@/$(GNULIB_WCTOMB)/g' \
-	      < $(srcdir)/stdlib.in.h | \
-	  sed -e 's|@''HAVE__EXIT''@|$(HAVE__EXIT)|g' \
-	      -e 's|@''HAVE_ATOLL''@|$(HAVE_ATOLL)|g' \
-	      -e 's|@''HAVE_CANONICALIZE_FILE_NAME''@|$(HAVE_CANONICALIZE_FILE_NAME)|g' \
-	      -e 's|@''HAVE_DECL_GETLOADAVG''@|$(HAVE_DECL_GETLOADAVG)|g' \
-	      -e 's|@''HAVE_GETSUBOPT''@|$(HAVE_GETSUBOPT)|g' \
-	      -e 's|@''HAVE_GRANTPT''@|$(HAVE_GRANTPT)|g' \
-	      -e 's|@''HAVE_MKDTEMP''@|$(HAVE_MKDTEMP)|g' \
-	      -e 's|@''HAVE_MKOSTEMP''@|$(HAVE_MKOSTEMP)|g' \
-	      -e 's|@''HAVE_MKOSTEMPS''@|$(HAVE_MKOSTEMPS)|g' \
-	      -e 's|@''HAVE_MKSTEMP''@|$(HAVE_MKSTEMP)|g' \
-	      -e 's|@''HAVE_MKSTEMPS''@|$(HAVE_MKSTEMPS)|g' \
-	      -e 's|@''HAVE_POSIX_OPENPT''@|$(HAVE_POSIX_OPENPT)|g' \
-	      -e 's|@''HAVE_PTSNAME''@|$(HAVE_PTSNAME)|g' \
-	      -e 's|@''HAVE_PTSNAME_R''@|$(HAVE_PTSNAME_R)|g' \
-	      -e 's|@''HAVE_RANDOM''@|$(HAVE_RANDOM)|g' \
-	      -e 's|@''HAVE_RANDOM_H''@|$(HAVE_RANDOM_H)|g' \
-	      -e 's|@''HAVE_RANDOM_R''@|$(HAVE_RANDOM_R)|g' \
-	      -e 's|@''HAVE_REALPATH''@|$(HAVE_REALPATH)|g' \
-	      -e 's|@''HAVE_RPMATCH''@|$(HAVE_RPMATCH)|g' \
-	      -e 's|@''HAVE_SECURE_GETENV''@|$(HAVE_SECURE_GETENV)|g' \
-	      -e 's|@''HAVE_DECL_SETENV''@|$(HAVE_DECL_SETENV)|g' \
-	      -e 's|@''HAVE_STRTOD''@|$(HAVE_STRTOD)|g' \
-	      -e 's|@''HAVE_STRTOLL''@|$(HAVE_STRTOLL)|g' \
-	      -e 's|@''HAVE_STRTOULL''@|$(HAVE_STRTOULL)|g' \
-	      -e 's|@''HAVE_STRUCT_RANDOM_DATA''@|$(HAVE_STRUCT_RANDOM_DATA)|g' \
-	      -e 's|@''HAVE_SYS_LOADAVG_H''@|$(HAVE_SYS_LOADAVG_H)|g' \
-	      -e 's|@''HAVE_UNLOCKPT''@|$(HAVE_UNLOCKPT)|g' \
-	      -e 's|@''HAVE_DECL_UNSETENV''@|$(HAVE_DECL_UNSETENV)|g' \
-	      -e 's|@''REPLACE_CALLOC''@|$(REPLACE_CALLOC)|g' \
-	      -e 's|@''REPLACE_CANONICALIZE_FILE_NAME''@|$(REPLACE_CANONICALIZE_FILE_NAME)|g' \
-	      -e 's|@''REPLACE_MALLOC''@|$(REPLACE_MALLOC)|g' \
-	      -e 's|@''REPLACE_MBTOWC''@|$(REPLACE_MBTOWC)|g' \
-	      -e 's|@''REPLACE_MKSTEMP''@|$(REPLACE_MKSTEMP)|g' \
-	      -e 's|@''REPLACE_PTSNAME''@|$(REPLACE_PTSNAME)|g' \
-	      -e 's|@''REPLACE_PTSNAME_R''@|$(REPLACE_PTSNAME_R)|g' \
-	      -e 's|@''REPLACE_PUTENV''@|$(REPLACE_PUTENV)|g' \
-	      -e 's|@''REPLACE_RANDOM_R''@|$(REPLACE_RANDOM_R)|g' \
-	      -e 's|@''REPLACE_REALLOC''@|$(REPLACE_REALLOC)|g' \
-	      -e 's|@''REPLACE_REALPATH''@|$(REPLACE_REALPATH)|g' \
-	      -e 's|@''REPLACE_SETENV''@|$(REPLACE_SETENV)|g' \
-	      -e 's|@''REPLACE_STRTOD''@|$(REPLACE_STRTOD)|g' \
-	      -e 's|@''REPLACE_UNSETENV''@|$(REPLACE_UNSETENV)|g' \
-	      -e 's|@''REPLACE_WCTOMB''@|$(REPLACE_WCTOMB)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _Noreturn/r $(_NORETURN_H)' \
-	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)'; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += stdlib.h stdlib.h-t
-
-EXTRA_DIST += stdlib.in.h
-
-## end   gnulib module stdlib
-
-## begin gnulib module string
-
-BUILT_SOURCES += string.h
-
-# We need the following in order to create <string.h> when the system
-# doesn't have one that works with the given compiler.
-string.h: string.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_STRING_H''@|$(NEXT_STRING_H)|g' \
-	      -e 's/@''GNULIB_FFSL''@/$(GNULIB_FFSL)/g' \
-	      -e 's/@''GNULIB_FFSLL''@/$(GNULIB_FFSLL)/g' \
-	      -e 's/@''GNULIB_MBSLEN''@/$(GNULIB_MBSLEN)/g' \
-	      -e 's/@''GNULIB_MBSNLEN''@/$(GNULIB_MBSNLEN)/g' \
-	      -e 's/@''GNULIB_MBSCHR''@/$(GNULIB_MBSCHR)/g' \
-	      -e 's/@''GNULIB_MBSRCHR''@/$(GNULIB_MBSRCHR)/g' \
-	      -e 's/@''GNULIB_MBSSTR''@/$(GNULIB_MBSSTR)/g' \
-	      -e 's/@''GNULIB_MBSCASECMP''@/$(GNULIB_MBSCASECMP)/g' \
-	      -e 's/@''GNULIB_MBSNCASECMP''@/$(GNULIB_MBSNCASECMP)/g' \
-	      -e 's/@''GNULIB_MBSPCASECMP''@/$(GNULIB_MBSPCASECMP)/g' \
-	      -e 's/@''GNULIB_MBSCASESTR''@/$(GNULIB_MBSCASESTR)/g' \
-	      -e 's/@''GNULIB_MBSCSPN''@/$(GNULIB_MBSCSPN)/g' \
-	      -e 's/@''GNULIB_MBSPBRK''@/$(GNULIB_MBSPBRK)/g' \
-	      -e 's/@''GNULIB_MBSSPN''@/$(GNULIB_MBSSPN)/g' \
-	      -e 's/@''GNULIB_MBSSEP''@/$(GNULIB_MBSSEP)/g' \
-	      -e 's/@''GNULIB_MBSTOK_R''@/$(GNULIB_MBSTOK_R)/g' \
-	      -e 's/@''GNULIB_MEMCHR''@/$(GNULIB_MEMCHR)/g' \
-	      -e 's/@''GNULIB_MEMMEM''@/$(GNULIB_MEMMEM)/g' \
-	      -e 's/@''GNULIB_MEMPCPY''@/$(GNULIB_MEMPCPY)/g' \
-	      -e 's/@''GNULIB_MEMRCHR''@/$(GNULIB_MEMRCHR)/g' \
-	      -e 's/@''GNULIB_RAWMEMCHR''@/$(GNULIB_RAWMEMCHR)/g' \
-	      -e 's/@''GNULIB_STPCPY''@/$(GNULIB_STPCPY)/g' \
-	      -e 's/@''GNULIB_STPNCPY''@/$(GNULIB_STPNCPY)/g' \
-	      -e 's/@''GNULIB_STRCHRNUL''@/$(GNULIB_STRCHRNUL)/g' \
-	      -e 's/@''GNULIB_STRDUP''@/$(GNULIB_STRDUP)/g' \
-	      -e 's/@''GNULIB_STRNCAT''@/$(GNULIB_STRNCAT)/g' \
-	      -e 's/@''GNULIB_STRNDUP''@/$(GNULIB_STRNDUP)/g' \
-	      -e 's/@''GNULIB_STRNLEN''@/$(GNULIB_STRNLEN)/g' \
-	      -e 's/@''GNULIB_STRPBRK''@/$(GNULIB_STRPBRK)/g' \
-	      -e 's/@''GNULIB_STRSEP''@/$(GNULIB_STRSEP)/g' \
-	      -e 's/@''GNULIB_STRSTR''@/$(GNULIB_STRSTR)/g' \
-	      -e 's/@''GNULIB_STRCASESTR''@/$(GNULIB_STRCASESTR)/g' \
-	      -e 's/@''GNULIB_STRTOK_R''@/$(GNULIB_STRTOK_R)/g' \
-	      -e 's/@''GNULIB_STRERROR''@/$(GNULIB_STRERROR)/g' \
-	      -e 's/@''GNULIB_STRERROR_R''@/$(GNULIB_STRERROR_R)/g' \
-	      -e 's/@''GNULIB_STRSIGNAL''@/$(GNULIB_STRSIGNAL)/g' \
-	      -e 's/@''GNULIB_STRVERSCMP''@/$(GNULIB_STRVERSCMP)/g' \
-	      < $(srcdir)/string.in.h | \
-	  sed -e 's|@''HAVE_FFSL''@|$(HAVE_FFSL)|g' \
-	      -e 's|@''HAVE_FFSLL''@|$(HAVE_FFSLL)|g' \
-	      -e 's|@''HAVE_MBSLEN''@|$(HAVE_MBSLEN)|g' \
-	      -e 's|@''HAVE_MEMCHR''@|$(HAVE_MEMCHR)|g' \
-	      -e 's|@''HAVE_DECL_MEMMEM''@|$(HAVE_DECL_MEMMEM)|g' \
-	      -e 's|@''HAVE_MEMPCPY''@|$(HAVE_MEMPCPY)|g' \
-	      -e 's|@''HAVE_DECL_MEMRCHR''@|$(HAVE_DECL_MEMRCHR)|g' \
-	      -e 's|@''HAVE_RAWMEMCHR''@|$(HAVE_RAWMEMCHR)|g' \
-	      -e 's|@''HAVE_STPCPY''@|$(HAVE_STPCPY)|g' \
-	      -e 's|@''HAVE_STPNCPY''@|$(HAVE_STPNCPY)|g' \
-	      -e 's|@''HAVE_STRCHRNUL''@|$(HAVE_STRCHRNUL)|g' \
-	      -e 's|@''HAVE_DECL_STRDUP''@|$(HAVE_DECL_STRDUP)|g' \
-	      -e 's|@''HAVE_DECL_STRNDUP''@|$(HAVE_DECL_STRNDUP)|g' \
-	      -e 's|@''HAVE_DECL_STRNLEN''@|$(HAVE_DECL_STRNLEN)|g' \
-	      -e 's|@''HAVE_STRPBRK''@|$(HAVE_STRPBRK)|g' \
-	      -e 's|@''HAVE_STRSEP''@|$(HAVE_STRSEP)|g' \
-	      -e 's|@''HAVE_STRCASESTR''@|$(HAVE_STRCASESTR)|g' \
-	      -e 's|@''HAVE_DECL_STRTOK_R''@|$(HAVE_DECL_STRTOK_R)|g' \
-	      -e 's|@''HAVE_DECL_STRERROR_R''@|$(HAVE_DECL_STRERROR_R)|g' \
-	      -e 's|@''HAVE_DECL_STRSIGNAL''@|$(HAVE_DECL_STRSIGNAL)|g' \
-	      -e 's|@''HAVE_STRVERSCMP''@|$(HAVE_STRVERSCMP)|g' \
-	      -e 's|@''REPLACE_STPNCPY''@|$(REPLACE_STPNCPY)|g' \
-	      -e 's|@''REPLACE_MEMCHR''@|$(REPLACE_MEMCHR)|g' \
-	      -e 's|@''REPLACE_MEMMEM''@|$(REPLACE_MEMMEM)|g' \
-	      -e 's|@''REPLACE_STRCASESTR''@|$(REPLACE_STRCASESTR)|g' \
-	      -e 's|@''REPLACE_STRCHRNUL''@|$(REPLACE_STRCHRNUL)|g' \
-	      -e 's|@''REPLACE_STRDUP''@|$(REPLACE_STRDUP)|g' \
-	      -e 's|@''REPLACE_STRSTR''@|$(REPLACE_STRSTR)|g' \
-	      -e 's|@''REPLACE_STRERROR''@|$(REPLACE_STRERROR)|g' \
-	      -e 's|@''REPLACE_STRERROR_R''@|$(REPLACE_STRERROR_R)|g' \
-	      -e 's|@''REPLACE_STRNCAT''@|$(REPLACE_STRNCAT)|g' \
-	      -e 's|@''REPLACE_STRNDUP''@|$(REPLACE_STRNDUP)|g' \
-	      -e 's|@''REPLACE_STRNLEN''@|$(REPLACE_STRNLEN)|g' \
-	      -e 's|@''REPLACE_STRSIGNAL''@|$(REPLACE_STRSIGNAL)|g' \
-	      -e 's|@''REPLACE_STRTOK_R''@|$(REPLACE_STRTOK_R)|g' \
-	      -e 's|@''UNDEFINE_STRTOK_R''@|$(UNDEFINE_STRTOK_R)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)'; \
-	      < $(srcdir)/string.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += string.h string.h-t
-
-EXTRA_DIST += string.in.h
-
-## end   gnulib module string
-
-## begin gnulib module strndup
-
-
-EXTRA_DIST += strndup.c
-
-EXTRA_libgnu_la_SOURCES += strndup.c
-
-## end   gnulib module strndup
-
-## begin gnulib module strnlen
-
-
-EXTRA_DIST += strnlen.c
-
-EXTRA_libgnu_la_SOURCES += strnlen.c
-
-## end   gnulib module strnlen
-
-## begin gnulib module sys_ioctl
-
-BUILT_SOURCES += sys/ioctl.h
-
-# We need the following in order to create <sys/ioctl.h> when the system
-# does not have a complete one.
-sys/ioctl.h: sys_ioctl.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(WARN_ON_USE_H)
-	$(AM_V_at)$(MKDIR_P) sys
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''HAVE_SYS_IOCTL_H''@|$(HAVE_SYS_IOCTL_H)|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_SYS_IOCTL_H''@|$(NEXT_SYS_IOCTL_H)|g' \
-	      -e 's/@''GNULIB_IOCTL''@/$(GNULIB_IOCTL)/g' \
-	      -e 's|@''SYS_IOCTL_H_HAVE_WINSOCK2_H''@|$(SYS_IOCTL_H_HAVE_WINSOCK2_H)|g' \
-	      -e 's|@''SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS''@|$(SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS)|g' \
-	      -e 's|@''REPLACE_IOCTL''@|$(REPLACE_IOCTL)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
-	      < $(srcdir)/sys_ioctl.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += sys/ioctl.h sys/ioctl.h-t
-MOSTLYCLEANDIRS += sys
-
-EXTRA_DIST += sys_ioctl.in.h
-
-## end   gnulib module sys_ioctl
-
-## begin gnulib module sys_socket
-
-BUILT_SOURCES += sys/socket.h
-libgnu_la_SOURCES += sys_socket.c
-
-# We need the following in order to create <sys/socket.h> when the system
-# doesn't have one that works with the given compiler.
-sys/socket.h: sys_socket.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(WARN_ON_USE_H) $(ARG_NONNULL_H)
-	$(AM_V_at)$(MKDIR_P) sys
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_SYS_SOCKET_H''@|$(NEXT_SYS_SOCKET_H)|g' \
-	      -e 's|@''HAVE_SYS_SOCKET_H''@|$(HAVE_SYS_SOCKET_H)|g' \
-	      -e 's/@''GNULIB_CLOSE''@/$(GNULIB_CLOSE)/g' \
-	      -e 's/@''GNULIB_SOCKET''@/$(GNULIB_SOCKET)/g' \
-	      -e 's/@''GNULIB_CONNECT''@/$(GNULIB_CONNECT)/g' \
-	      -e 's/@''GNULIB_ACCEPT''@/$(GNULIB_ACCEPT)/g' \
-	      -e 's/@''GNULIB_BIND''@/$(GNULIB_BIND)/g' \
-	      -e 's/@''GNULIB_GETPEERNAME''@/$(GNULIB_GETPEERNAME)/g' \
-	      -e 's/@''GNULIB_GETSOCKNAME''@/$(GNULIB_GETSOCKNAME)/g' \
-	      -e 's/@''GNULIB_GETSOCKOPT''@/$(GNULIB_GETSOCKOPT)/g' \
-	      -e 's/@''GNULIB_LISTEN''@/$(GNULIB_LISTEN)/g' \
-	      -e 's/@''GNULIB_RECV''@/$(GNULIB_RECV)/g' \
-	      -e 's/@''GNULIB_SEND''@/$(GNULIB_SEND)/g' \
-	      -e 's/@''GNULIB_RECVFROM''@/$(GNULIB_RECVFROM)/g' \
-	      -e 's/@''GNULIB_SENDTO''@/$(GNULIB_SENDTO)/g' \
-	      -e 's/@''GNULIB_SETSOCKOPT''@/$(GNULIB_SETSOCKOPT)/g' \
-	      -e 's/@''GNULIB_SHUTDOWN''@/$(GNULIB_SHUTDOWN)/g' \
-	      -e 's/@''GNULIB_ACCEPT4''@/$(GNULIB_ACCEPT4)/g' \
-	      -e 's|@''HAVE_WINSOCK2_H''@|$(HAVE_WINSOCK2_H)|g' \
-	      -e 's|@''HAVE_WS2TCPIP_H''@|$(HAVE_WS2TCPIP_H)|g' \
-	      -e 's|@''HAVE_STRUCT_SOCKADDR_STORAGE''@|$(HAVE_STRUCT_SOCKADDR_STORAGE)|g' \
-	      -e 's|@''HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY''@|$(HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY)|g' \
-	      -e 's|@''HAVE_SA_FAMILY_T''@|$(HAVE_SA_FAMILY_T)|g' \
-	      -e 's|@''HAVE_ACCEPT4''@|$(HAVE_ACCEPT4)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)' \
-	      < $(srcdir)/sys_socket.in.h; \
-	} > $@-t && \
-	mv -f $@-t $@
-MOSTLYCLEANFILES += sys/socket.h sys/socket.h-t
-MOSTLYCLEANDIRS += sys
-
-EXTRA_DIST += sys_socket.in.h
-
-## end   gnulib module sys_socket
-
-## begin gnulib module sys_types
-
-BUILT_SOURCES += sys/types.h
-
-# We need the following in order to create <sys/types.h> when the system
-# doesn't have one that works with the given compiler.
-sys/types.h: sys_types.in.h $(top_builddir)/config.status
-	$(AM_V_at)$(MKDIR_P) sys
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_SYS_TYPES_H''@|$(NEXT_SYS_TYPES_H)|g' \
-	      -e 's|@''WINDOWS_64_BIT_OFF_T''@|$(WINDOWS_64_BIT_OFF_T)|g' \
-	      < $(srcdir)/sys_types.in.h; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += sys/types.h sys/types.h-t
-
-EXTRA_DIST += sys_types.in.h
-
-## end   gnulib module sys_types
-
-## begin gnulib module sys_uio
-
-BUILT_SOURCES += sys/uio.h
-
-# We need the following in order to create <sys/uio.h> when the system
-# doesn't have one that works with the given compiler.
-sys/uio.h: sys_uio.in.h $(top_builddir)/config.status
-	$(AM_V_at)$(MKDIR_P) sys
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_SYS_UIO_H''@|$(NEXT_SYS_UIO_H)|g' \
-	      -e 's|@''HAVE_SYS_UIO_H''@|$(HAVE_SYS_UIO_H)|g' \
-	      < $(srcdir)/sys_uio.in.h; \
-	} > $@-t && \
-	mv -f $@-t $@
-MOSTLYCLEANFILES += sys/uio.h sys/uio.h-t
-MOSTLYCLEANDIRS += sys
-
-EXTRA_DIST += sys_uio.in.h
-
-## end   gnulib module sys_uio
-
-## begin gnulib module unistd
-
-BUILT_SOURCES += unistd.h
-libgnu_la_SOURCES += unistd.c
-
-# We need the following in order to create an empty placeholder for
-# <unistd.h> when the system doesn't have one.
-unistd.h: unistd.in.h $(top_builddir)/config.status $(CXXDEFS_H) $(ARG_NONNULL_H) $(WARN_ON_USE_H)
-	$(AM_V_GEN)rm -f $@-t $@ && \
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */'; \
-	  sed -e 's|@''GUARD_PREFIX''@|GL|g' \
-	      -e 's|@''HAVE_UNISTD_H''@|$(HAVE_UNISTD_H)|g' \
-	      -e 's|@''INCLUDE_NEXT''@|$(INCLUDE_NEXT)|g' \
-	      -e 's|@''PRAGMA_SYSTEM_HEADER''@|@PRAGMA_SYSTEM_HEADER@|g' \
-	      -e 's|@''PRAGMA_COLUMNS''@|@PRAGMA_COLUMNS@|g' \
-	      -e 's|@''NEXT_UNISTD_H''@|$(NEXT_UNISTD_H)|g' \
-	      -e 's|@''WINDOWS_64_BIT_OFF_T''@|$(WINDOWS_64_BIT_OFF_T)|g' \
-	      -e 's/@''GNULIB_CHDIR''@/$(GNULIB_CHDIR)/g' \
-	      -e 's/@''GNULIB_CHOWN''@/$(GNULIB_CHOWN)/g' \
-	      -e 's/@''GNULIB_CLOSE''@/$(GNULIB_CLOSE)/g' \
-	      -e 's/@''GNULIB_DUP''@/$(GNULIB_DUP)/g' \
-	      -e 's/@''GNULIB_DUP2''@/$(GNULIB_DUP2)/g' \
-	      -e 's/@''GNULIB_DUP3''@/$(GNULIB_DUP3)/g' \
-	      -e 's/@''GNULIB_ENVIRON''@/$(GNULIB_ENVIRON)/g' \
-	      -e 's/@''GNULIB_EUIDACCESS''@/$(GNULIB_EUIDACCESS)/g' \
-	      -e 's/@''GNULIB_FACCESSAT''@/$(GNULIB_FACCESSAT)/g' \
-	      -e 's/@''GNULIB_FCHDIR''@/$(GNULIB_FCHDIR)/g' \
-	      -e 's/@''GNULIB_FCHOWNAT''@/$(GNULIB_FCHOWNAT)/g' \
-	      -e 's/@''GNULIB_FDATASYNC''@/$(GNULIB_FDATASYNC)/g' \
-	      -e 's/@''GNULIB_FSYNC''@/$(GNULIB_FSYNC)/g' \
-	      -e 's/@''GNULIB_FTRUNCATE''@/$(GNULIB_FTRUNCATE)/g' \
-	      -e 's/@''GNULIB_GETCWD''@/$(GNULIB_GETCWD)/g' \
-	      -e 's/@''GNULIB_GETDOMAINNAME''@/$(GNULIB_GETDOMAINNAME)/g' \
-	      -e 's/@''GNULIB_GETDTABLESIZE''@/$(GNULIB_GETDTABLESIZE)/g' \
-	      -e 's/@''GNULIB_GETGROUPS''@/$(GNULIB_GETGROUPS)/g' \
-	      -e 's/@''GNULIB_GETHOSTNAME''@/$(GNULIB_GETHOSTNAME)/g' \
-	      -e 's/@''GNULIB_GETLOGIN''@/$(GNULIB_GETLOGIN)/g' \
-	      -e 's/@''GNULIB_GETLOGIN_R''@/$(GNULIB_GETLOGIN_R)/g' \
-	      -e 's/@''GNULIB_GETPAGESIZE''@/$(GNULIB_GETPAGESIZE)/g' \
-	      -e 's/@''GNULIB_GETUSERSHELL''@/$(GNULIB_GETUSERSHELL)/g' \
-	      -e 's/@''GNULIB_GROUP_MEMBER''@/$(GNULIB_GROUP_MEMBER)/g' \
-	      -e 's/@''GNULIB_ISATTY''@/$(GNULIB_ISATTY)/g' \
-	      -e 's/@''GNULIB_LCHOWN''@/$(GNULIB_LCHOWN)/g' \
-	      -e 's/@''GNULIB_LINK''@/$(GNULIB_LINK)/g' \
-	      -e 's/@''GNULIB_LINKAT''@/$(GNULIB_LINKAT)/g' \
-	      -e 's/@''GNULIB_LSEEK''@/$(GNULIB_LSEEK)/g' \
-	      -e 's/@''GNULIB_PIPE''@/$(GNULIB_PIPE)/g' \
-	      -e 's/@''GNULIB_PIPE2''@/$(GNULIB_PIPE2)/g' \
-	      -e 's/@''GNULIB_PREAD''@/$(GNULIB_PREAD)/g' \
-	      -e 's/@''GNULIB_PWRITE''@/$(GNULIB_PWRITE)/g' \
-	      -e 's/@''GNULIB_READ''@/$(GNULIB_READ)/g' \
-	      -e 's/@''GNULIB_READLINK''@/$(GNULIB_READLINK)/g' \
-	      -e 's/@''GNULIB_READLINKAT''@/$(GNULIB_READLINKAT)/g' \
-	      -e 's/@''GNULIB_RMDIR''@/$(GNULIB_RMDIR)/g' \
-	      -e 's/@''GNULIB_SETHOSTNAME''@/$(GNULIB_SETHOSTNAME)/g' \
-	      -e 's/@''GNULIB_SLEEP''@/$(GNULIB_SLEEP)/g' \
-	      -e 's/@''GNULIB_SYMLINK''@/$(GNULIB_SYMLINK)/g' \
-	      -e 's/@''GNULIB_SYMLINKAT''@/$(GNULIB_SYMLINKAT)/g' \
-	      -e 's/@''GNULIB_TTYNAME_R''@/$(GNULIB_TTYNAME_R)/g' \
-	      -e 's/@''GNULIB_UNISTD_H_GETOPT''@/0$(GNULIB_GL_UNISTD_H_GETOPT)/g' \
-	      -e 's/@''GNULIB_UNISTD_H_NONBLOCKING''@/$(GNULIB_UNISTD_H_NONBLOCKING)/g' \
-	      -e 's/@''GNULIB_UNISTD_H_SIGPIPE''@/$(GNULIB_UNISTD_H_SIGPIPE)/g' \
-	      -e 's/@''GNULIB_UNLINK''@/$(GNULIB_UNLINK)/g' \
-	      -e 's/@''GNULIB_UNLINKAT''@/$(GNULIB_UNLINKAT)/g' \
-	      -e 's/@''GNULIB_USLEEP''@/$(GNULIB_USLEEP)/g' \
-	      -e 's/@''GNULIB_WRITE''@/$(GNULIB_WRITE)/g' \
-	      < $(srcdir)/unistd.in.h | \
-	  sed -e 's|@''HAVE_CHOWN''@|$(HAVE_CHOWN)|g' \
-	      -e 's|@''HAVE_DUP2''@|$(HAVE_DUP2)|g' \
-	      -e 's|@''HAVE_DUP3''@|$(HAVE_DUP3)|g' \
-	      -e 's|@''HAVE_EUIDACCESS''@|$(HAVE_EUIDACCESS)|g' \
-	      -e 's|@''HAVE_FACCESSAT''@|$(HAVE_FACCESSAT)|g' \
-	      -e 's|@''HAVE_FCHDIR''@|$(HAVE_FCHDIR)|g' \
-	      -e 's|@''HAVE_FCHOWNAT''@|$(HAVE_FCHOWNAT)|g' \
-	      -e 's|@''HAVE_FDATASYNC''@|$(HAVE_FDATASYNC)|g' \
-	      -e 's|@''HAVE_FSYNC''@|$(HAVE_FSYNC)|g' \
-	      -e 's|@''HAVE_FTRUNCATE''@|$(HAVE_FTRUNCATE)|g' \
-	      -e 's|@''HAVE_GETDTABLESIZE''@|$(HAVE_GETDTABLESIZE)|g' \
-	      -e 's|@''HAVE_GETGROUPS''@|$(HAVE_GETGROUPS)|g' \
-	      -e 's|@''HAVE_GETHOSTNAME''@|$(HAVE_GETHOSTNAME)|g' \
-	      -e 's|@''HAVE_GETLOGIN''@|$(HAVE_GETLOGIN)|g' \
-	      -e 's|@''HAVE_GETPAGESIZE''@|$(HAVE_GETPAGESIZE)|g' \
-	      -e 's|@''HAVE_GROUP_MEMBER''@|$(HAVE_GROUP_MEMBER)|g' \
-	      -e 's|@''HAVE_LCHOWN''@|$(HAVE_LCHOWN)|g' \
-	      -e 's|@''HAVE_LINK''@|$(HAVE_LINK)|g' \
-	      -e 's|@''HAVE_LINKAT''@|$(HAVE_LINKAT)|g' \
-	      -e 's|@''HAVE_PIPE''@|$(HAVE_PIPE)|g' \
-	      -e 's|@''HAVE_PIPE2''@|$(HAVE_PIPE2)|g' \
-	      -e 's|@''HAVE_PREAD''@|$(HAVE_PREAD)|g' \
-	      -e 's|@''HAVE_PWRITE''@|$(HAVE_PWRITE)|g' \
-	      -e 's|@''HAVE_READLINK''@|$(HAVE_READLINK)|g' \
-	      -e 's|@''HAVE_READLINKAT''@|$(HAVE_READLINKAT)|g' \
-	      -e 's|@''HAVE_SETHOSTNAME''@|$(HAVE_SETHOSTNAME)|g' \
-	      -e 's|@''HAVE_SLEEP''@|$(HAVE_SLEEP)|g' \
-	      -e 's|@''HAVE_SYMLINK''@|$(HAVE_SYMLINK)|g' \
-	      -e 's|@''HAVE_SYMLINKAT''@|$(HAVE_SYMLINKAT)|g' \
-	      -e 's|@''HAVE_UNLINKAT''@|$(HAVE_UNLINKAT)|g' \
-	      -e 's|@''HAVE_USLEEP''@|$(HAVE_USLEEP)|g' \
-	      -e 's|@''HAVE_DECL_ENVIRON''@|$(HAVE_DECL_ENVIRON)|g' \
-	      -e 's|@''HAVE_DECL_FCHDIR''@|$(HAVE_DECL_FCHDIR)|g' \
-	      -e 's|@''HAVE_DECL_FDATASYNC''@|$(HAVE_DECL_FDATASYNC)|g' \
-	      -e 's|@''HAVE_DECL_GETDOMAINNAME''@|$(HAVE_DECL_GETDOMAINNAME)|g' \
-	      -e 's|@''HAVE_DECL_GETLOGIN_R''@|$(HAVE_DECL_GETLOGIN_R)|g' \
-	      -e 's|@''HAVE_DECL_GETPAGESIZE''@|$(HAVE_DECL_GETPAGESIZE)|g' \
-	      -e 's|@''HAVE_DECL_GETUSERSHELL''@|$(HAVE_DECL_GETUSERSHELL)|g' \
-	      -e 's|@''HAVE_DECL_SETHOSTNAME''@|$(HAVE_DECL_SETHOSTNAME)|g' \
-	      -e 's|@''HAVE_DECL_TTYNAME_R''@|$(HAVE_DECL_TTYNAME_R)|g' \
-	      -e 's|@''HAVE_OS_H''@|$(HAVE_OS_H)|g' \
-	      -e 's|@''HAVE_SYS_PARAM_H''@|$(HAVE_SYS_PARAM_H)|g' \
-	  | \
-	  sed -e 's|@''REPLACE_CHOWN''@|$(REPLACE_CHOWN)|g' \
-	      -e 's|@''REPLACE_CLOSE''@|$(REPLACE_CLOSE)|g' \
-	      -e 's|@''REPLACE_DUP''@|$(REPLACE_DUP)|g' \
-	      -e 's|@''REPLACE_DUP2''@|$(REPLACE_DUP2)|g' \
-	      -e 's|@''REPLACE_FCHOWNAT''@|$(REPLACE_FCHOWNAT)|g' \
-	      -e 's|@''REPLACE_FTRUNCATE''@|$(REPLACE_FTRUNCATE)|g' \
-	      -e 's|@''REPLACE_GETCWD''@|$(REPLACE_GETCWD)|g' \
-	      -e 's|@''REPLACE_GETDOMAINNAME''@|$(REPLACE_GETDOMAINNAME)|g' \
-	      -e 's|@''REPLACE_GETDTABLESIZE''@|$(REPLACE_GETDTABLESIZE)|g' \
-	      -e 's|@''REPLACE_GETLOGIN_R''@|$(REPLACE_GETLOGIN_R)|g' \
-	      -e 's|@''REPLACE_GETGROUPS''@|$(REPLACE_GETGROUPS)|g' \
-	      -e 's|@''REPLACE_GETPAGESIZE''@|$(REPLACE_GETPAGESIZE)|g' \
-	      -e 's|@''REPLACE_ISATTY''@|$(REPLACE_ISATTY)|g' \
-	      -e 's|@''REPLACE_LCHOWN''@|$(REPLACE_LCHOWN)|g' \
-	      -e 's|@''REPLACE_LINK''@|$(REPLACE_LINK)|g' \
-	      -e 's|@''REPLACE_LINKAT''@|$(REPLACE_LINKAT)|g' \
-	      -e 's|@''REPLACE_LSEEK''@|$(REPLACE_LSEEK)|g' \
-	      -e 's|@''REPLACE_PREAD''@|$(REPLACE_PREAD)|g' \
-	      -e 's|@''REPLACE_PWRITE''@|$(REPLACE_PWRITE)|g' \
-	      -e 's|@''REPLACE_READ''@|$(REPLACE_READ)|g' \
-	      -e 's|@''REPLACE_READLINK''@|$(REPLACE_READLINK)|g' \
-	      -e 's|@''REPLACE_RMDIR''@|$(REPLACE_RMDIR)|g' \
-	      -e 's|@''REPLACE_SLEEP''@|$(REPLACE_SLEEP)|g' \
-	      -e 's|@''REPLACE_SYMLINK''@|$(REPLACE_SYMLINK)|g' \
-	      -e 's|@''REPLACE_TTYNAME_R''@|$(REPLACE_TTYNAME_R)|g' \
-	      -e 's|@''REPLACE_UNLINK''@|$(REPLACE_UNLINK)|g' \
-	      -e 's|@''REPLACE_UNLINKAT''@|$(REPLACE_UNLINKAT)|g' \
-	      -e 's|@''REPLACE_USLEEP''@|$(REPLACE_USLEEP)|g' \
-	      -e 's|@''REPLACE_WRITE''@|$(REPLACE_WRITE)|g' \
-	      -e 's|@''UNISTD_H_HAVE_WINSOCK2_H''@|$(UNISTD_H_HAVE_WINSOCK2_H)|g' \
-	      -e 's|@''UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS''@|$(UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS)|g' \
-	      -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
-	      -e '/definition of _GL_ARG_NONNULL/r $(ARG_NONNULL_H)' \
-	      -e '/definition of _GL_WARN_ON_USE/r $(WARN_ON_USE_H)'; \
-	} > $@-t && \
-	mv $@-t $@
-MOSTLYCLEANFILES += unistd.h unistd.h-t
-
-EXTRA_DIST += unistd.in.h
-
-## end   gnulib module unistd
-
-
-mostlyclean-local: mostlyclean-generic
-	@for dir in '' $(MOSTLYCLEANDIRS); do \
-	  if test -n "$$dir" && test -d $$dir; then \
-	    echo "rmdir $$dir"; rmdir $$dir; \
-	  fi; \
-	done; \
-	:
diff --git a/lib/errno.in.h b/lib/errno.in.h
deleted file mode 100644
index 832afc8f..00000000
--- a/lib/errno.in.h
+++ /dev/null
@@ -1,279 +0,0 @@
-/* A POSIX-like <errno.h>.
-
-   Copyright (C) 2008-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _@GUARD_PREFIX@_ERRNO_H
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-/* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT@ @NEXT_ERRNO_H@
-
-#ifndef _@GUARD_PREFIX@_ERRNO_H
-#define _@GUARD_PREFIX@_ERRNO_H
-
-
-/* On native Windows platforms, many macros are not defined.  */
-# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-
-/* These are the same values as defined by MSVC 10, for interoperability.  */
-
-#  ifndef ENOMSG
-#   define ENOMSG    122
-#   define GNULIB_defined_ENOMSG 1
-#  endif
-
-#  ifndef EIDRM
-#   define EIDRM     111
-#   define GNULIB_defined_EIDRM 1
-#  endif
-
-#  ifndef ENOLINK
-#   define ENOLINK   121
-#   define GNULIB_defined_ENOLINK 1
-#  endif
-
-#  ifndef EPROTO
-#   define EPROTO    134
-#   define GNULIB_defined_EPROTO 1
-#  endif
-
-#  ifndef EBADMSG
-#   define EBADMSG   104
-#   define GNULIB_defined_EBADMSG 1
-#  endif
-
-#  ifndef EOVERFLOW
-#   define EOVERFLOW 132
-#   define GNULIB_defined_EOVERFLOW 1
-#  endif
-
-#  ifndef ENOTSUP
-#   define ENOTSUP   129
-#   define GNULIB_defined_ENOTSUP 1
-#  endif
-
-#  ifndef ENETRESET
-#   define ENETRESET 117
-#   define GNULIB_defined_ENETRESET 1
-#  endif
-
-#  ifndef ECONNABORTED
-#   define ECONNABORTED 106
-#   define GNULIB_defined_ECONNABORTED 1
-#  endif
-
-#  ifndef ECANCELED
-#   define ECANCELED 105
-#   define GNULIB_defined_ECANCELED 1
-#  endif
-
-#  ifndef EOWNERDEAD
-#   define EOWNERDEAD 133
-#   define GNULIB_defined_EOWNERDEAD 1
-#  endif
-
-#  ifndef ENOTRECOVERABLE
-#   define ENOTRECOVERABLE 127
-#   define GNULIB_defined_ENOTRECOVERABLE 1
-#  endif
-
-#  ifndef EINPROGRESS
-#   define EINPROGRESS     112
-#   define EALREADY        103
-#   define ENOTSOCK        128
-#   define EDESTADDRREQ    109
-#   define EMSGSIZE        115
-#   define EPROTOTYPE      136
-#   define ENOPROTOOPT     123
-#   define EPROTONOSUPPORT 135
-#   define EOPNOTSUPP      130
-#   define EAFNOSUPPORT    102
-#   define EADDRINUSE      100
-#   define EADDRNOTAVAIL   101
-#   define ENETDOWN        116
-#   define ENETUNREACH     118
-#   define ECONNRESET      108
-#   define ENOBUFS         119
-#   define EISCONN         113
-#   define ENOTCONN        126
-#   define ETIMEDOUT       138
-#   define ECONNREFUSED    107
-#   define ELOOP           114
-#   define EHOSTUNREACH    110
-#   define EWOULDBLOCK     140
-#   define GNULIB_defined_ESOCK 1
-#  endif
-
-#  ifndef ETXTBSY
-#   define ETXTBSY         139
-#   define ENODATA         120  /* not required by POSIX */
-#   define ENOSR           124  /* not required by POSIX */
-#   define ENOSTR          125  /* not required by POSIX */
-#   define ETIME           137  /* not required by POSIX */
-#   define EOTHER          131  /* not required by POSIX */
-#   define GNULIB_defined_ESTREAMS 1
-#  endif
-
-/* These are intentionally the same values as the WSA* error numbers, defined
-   in <winsock2.h>.  */
-#  define ESOCKTNOSUPPORT 10044  /* not required by POSIX */
-#  define EPFNOSUPPORT    10046  /* not required by POSIX */
-#  define ESHUTDOWN       10058  /* not required by POSIX */
-#  define ETOOMANYREFS    10059  /* not required by POSIX */
-#  define EHOSTDOWN       10064  /* not required by POSIX */
-#  define EPROCLIM        10067  /* not required by POSIX */
-#  define EUSERS          10068  /* not required by POSIX */
-#  define EDQUOT          10069
-#  define ESTALE          10070
-#  define EREMOTE         10071  /* not required by POSIX */
-#  define GNULIB_defined_EWINSOCK 1
-
-# endif
-
-
-/* On OSF/1 5.1, when _XOPEN_SOURCE_EXTENDED is not defined, the macros
-   EMULTIHOP, ENOLINK, EOVERFLOW are not defined.  */
-# if @EMULTIHOP_HIDDEN@
-#  define EMULTIHOP @EMULTIHOP_VALUE@
-#  define GNULIB_defined_EMULTIHOP 1
-# endif
-# if @ENOLINK_HIDDEN@
-#  define ENOLINK   @ENOLINK_VALUE@
-#  define GNULIB_defined_ENOLINK 1
-# endif
-# if @EOVERFLOW_HIDDEN@
-#  define EOVERFLOW @EOVERFLOW_VALUE@
-#  define GNULIB_defined_EOVERFLOW 1
-# endif
-
-
-/* On OpenBSD 4.0 and on native Windows, the macros ENOMSG, EIDRM, ENOLINK,
-   EPROTO, EMULTIHOP, EBADMSG, EOVERFLOW, ENOTSUP, ECANCELED are not defined.
-   Likewise, on NonStop Kernel, EDQUOT is not defined.
-   Define them here.  Values >= 2000 seem safe to use: Solaris ESTALE = 151,
-   HP-UX EWOULDBLOCK = 246, IRIX EDQUOT = 1133.
-
-   Note: When one of these systems defines some of these macros some day,
-   binaries will have to be recompiled so that they recognizes the new
-   errno values from the system.  */
-
-# ifndef ENOMSG
-#  define ENOMSG    2000
-#  define GNULIB_defined_ENOMSG 1
-# endif
-
-# ifndef EIDRM
-#  define EIDRM     2001
-#  define GNULIB_defined_EIDRM 1
-# endif
-
-# ifndef ENOLINK
-#  define ENOLINK   2002
-#  define GNULIB_defined_ENOLINK 1
-# endif
-
-# ifndef EPROTO
-#  define EPROTO    2003
-#  define GNULIB_defined_EPROTO 1
-# endif
-
-# ifndef EMULTIHOP
-#  define EMULTIHOP 2004
-#  define GNULIB_defined_EMULTIHOP 1
-# endif
-
-# ifndef EBADMSG
-#  define EBADMSG   2005
-#  define GNULIB_defined_EBADMSG 1
-# endif
-
-# ifndef EOVERFLOW
-#  define EOVERFLOW 2006
-#  define GNULIB_defined_EOVERFLOW 1
-# endif
-
-# ifndef ENOTSUP
-#  define ENOTSUP   2007
-#  define GNULIB_defined_ENOTSUP 1
-# endif
-
-# ifndef ENETRESET
-#  define ENETRESET 2011
-#  define GNULIB_defined_ENETRESET 1
-# endif
-
-# ifndef ECONNABORTED
-#  define ECONNABORTED 2012
-#  define GNULIB_defined_ECONNABORTED 1
-# endif
-
-# ifndef ESTALE
-#  define ESTALE    2009
-#  define GNULIB_defined_ESTALE 1
-# endif
-
-# ifndef EDQUOT
-#  define EDQUOT 2010
-#  define GNULIB_defined_EDQUOT 1
-# endif
-
-# ifndef ECANCELED
-#  define ECANCELED 2008
-#  define GNULIB_defined_ECANCELED 1
-# endif
-
-/* On many platforms, the macros EOWNERDEAD and ENOTRECOVERABLE are not
-   defined.  */
-
-# ifndef EOWNERDEAD
-#  if defined __sun
-    /* Use the same values as defined for Solaris >= 8, for
-       interoperability.  */
-#   define EOWNERDEAD      58
-#   define ENOTRECOVERABLE 59
-#  elif (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-    /* We have a conflict here: pthreads-win32 defines these values
-       differently than MSVC 10.  It's hairy to decide which one to use.  */
-#   if defined __MINGW32__ && !defined USE_WINDOWS_THREADS
-     /* Use the same values as defined by pthreads-win32, for
-        interoperability.  */
-#    define EOWNERDEAD      43
-#    define ENOTRECOVERABLE 44
-#   else
-     /* Use the same values as defined by MSVC 10, for
-        interoperability.  */
-#    define EOWNERDEAD      133
-#    define ENOTRECOVERABLE 127
-#   endif
-#  else
-#   define EOWNERDEAD      2013
-#   define ENOTRECOVERABLE 2014
-#  endif
-#  define GNULIB_defined_EOWNERDEAD 1
-#  define GNULIB_defined_ENOTRECOVERABLE 1
-# endif
-
-# ifndef EILSEQ
-#  define EILSEQ 2015
-#  define GNULIB_defined_EILSEQ 1
-# endif
-
-#endif /* _@GUARD_PREFIX@_ERRNO_H */
-#endif /* _@GUARD_PREFIX@_ERRNO_H */
diff --git a/lib/fcntl.in.h b/lib/fcntl.in.h
deleted file mode 100644
index e23b4b2b..00000000
--- a/lib/fcntl.in.h
+++ /dev/null
@@ -1,363 +0,0 @@
-/* Like <fcntl.h>, but with non-working flags defined to 0.
-
-   Copyright (C) 2006-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* written by Paul Eggert */
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-#if defined __need_system_fcntl_h
-/* Special invocation convention.  */
-
-/* Needed before <sys/stat.h>.
-   May also define off_t to a 64-bit type on native Windows.  */
-#include <sys/types.h>
-/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
-   <fcntl.h>.  On glibc systems, we would like to avoid namespace pollution.
-   But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
-   extern "C" { ... } block, which leads to errors in C++ mode with the
-   overridden <sys/stat.h> from gnulib.  These errors are known to be gone
-   with g++ version >= 4.3.  */
-#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
-# include <sys/stat.h>
-#endif
-#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
-
-#else
-/* Normal invocation convention.  */
-
-#ifndef _@GUARD_PREFIX@_FCNTL_H
-
-/* Needed before <sys/stat.h>.
-   May also define off_t to a 64-bit type on native Windows.  */
-#include <sys/types.h>
-/* On some systems other than glibc, <sys/stat.h> is a prerequisite of
-   <fcntl.h>.  On glibc systems, we would like to avoid namespace pollution.
-   But on glibc systems, <fcntl.h> includes <sys/stat.h> inside an
-   extern "C" { ... } block, which leads to errors in C++ mode with the
-   overridden <sys/stat.h> from gnulib.  These errors are known to be gone
-   with g++ version >= 4.3.  */
-#if !(defined __GLIBC__ || defined __UCLIBC__) || (defined __cplusplus && defined GNULIB_NAMESPACE && !(__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)))
-# include <sys/stat.h>
-#endif
-/* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT@ @NEXT_FCNTL_H@
-
-#ifndef _@GUARD_PREFIX@_FCNTL_H
-#define _@GUARD_PREFIX@_FCNTL_H
-
-#ifndef __GLIBC__ /* Avoid namespace pollution on glibc systems.  */
-# include <unistd.h>
-#endif
-
-/* Native Windows platforms declare open(), creat() in <io.h>.  */
-#if (@GNULIB_OPEN@ || defined GNULIB_POSIXCHECK) \
-    && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
-# include <io.h>
-#endif
-
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-
-/* The definition of _GL_ARG_NONNULL is copied here.  */
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-
-
-/* Declare overridden functions.  */
-
-#if @GNULIB_FCNTL@
-# if @REPLACE_FCNTL@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef fcntl
-#   define fcntl rpl_fcntl
-#  endif
-_GL_FUNCDECL_RPL (fcntl, int, (int fd, int action, ...));
-_GL_CXXALIAS_RPL (fcntl, int, (int fd, int action, ...));
-# else
-#  if !@HAVE_FCNTL@
-_GL_FUNCDECL_SYS (fcntl, int, (int fd, int action, ...));
-#  endif
-_GL_CXXALIAS_SYS (fcntl, int, (int fd, int action, ...));
-# endif
-_GL_CXXALIASWARN (fcntl);
-#elif defined GNULIB_POSIXCHECK
-# undef fcntl
-# if HAVE_RAW_DECL_FCNTL
-_GL_WARN_ON_USE (fcntl, "fcntl is not always POSIX compliant - "
-                 "use gnulib module fcntl for portability");
-# endif
-#endif
-
-#if @GNULIB_OPEN@
-# if @REPLACE_OPEN@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef open
-#   define open rpl_open
-#  endif
-_GL_FUNCDECL_RPL (open, int, (const char *filename, int flags, ...)
-                             _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (open, int, (const char *filename, int flags, ...));
-# else
-_GL_CXXALIAS_SYS (open, int, (const char *filename, int flags, ...));
-# endif
-/* On HP-UX 11, in C++ mode, open() is defined as an inline function with a
-   default argument.  _GL_CXXALIASWARN does not work in this case.  */
-# if !defined __hpux
-_GL_CXXALIASWARN (open);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef open
-/* Assume open is always declared.  */
-_GL_WARN_ON_USE (open, "open is not always POSIX compliant - "
-                 "use gnulib module open for portability");
-#endif
-
-#if @GNULIB_OPENAT@
-# if @REPLACE_OPENAT@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef openat
-#   define openat rpl_openat
-#  endif
-_GL_FUNCDECL_RPL (openat, int,
-                  (int fd, char const *file, int flags, /* mode_t mode */ ...)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (openat, int,
-                  (int fd, char const *file, int flags, /* mode_t mode */ ...));
-# else
-#  if !@HAVE_OPENAT@
-_GL_FUNCDECL_SYS (openat, int,
-                  (int fd, char const *file, int flags, /* mode_t mode */ ...)
-                  _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (openat, int,
-                  (int fd, char const *file, int flags, /* mode_t mode */ ...));
-# endif
-_GL_CXXALIASWARN (openat);
-#elif defined GNULIB_POSIXCHECK
-# undef openat
-# if HAVE_RAW_DECL_OPENAT
-_GL_WARN_ON_USE (openat, "openat is not portable - "
-                 "use gnulib module openat for portability");
-# endif
-#endif
-
-
-/* Fix up the FD_* macros, only known to be missing on mingw.  */
-
-#ifndef FD_CLOEXEC
-# define FD_CLOEXEC 1
-#endif
-
-/* Fix up the supported F_* macros.  Intentionally leave other F_*
-   macros undefined.  Only known to be missing on mingw.  */
-
-#ifndef F_DUPFD_CLOEXEC
-# define F_DUPFD_CLOEXEC 0x40000000
-/* Witness variable: 1 if gnulib defined F_DUPFD_CLOEXEC, 0 otherwise.  */
-# define GNULIB_defined_F_DUPFD_CLOEXEC 1
-#else
-# define GNULIB_defined_F_DUPFD_CLOEXEC 0
-#endif
-
-#ifndef F_DUPFD
-# define F_DUPFD 1
-#endif
-
-#ifndef F_GETFD
-# define F_GETFD 2
-#endif
-
-/* Fix up the O_* macros.  */
-
-/* AIX 7.1 with XL C 12.1 defines O_CLOEXEC, O_NOFOLLOW, and O_TTY_INIT
-   to values outside 'int' range, so omit these misdefinitions.
-   But avoid namespace pollution on non-AIX systems.  */
-#ifdef _AIX
-# include <limits.h>
-# if defined O_CLOEXEC && ! (INT_MIN <= O_CLOEXEC && O_CLOEXEC <= INT_MAX)
-#  undef O_CLOEXEC
-# endif
-# if defined O_NOFOLLOW && ! (INT_MIN <= O_NOFOLLOW && O_NOFOLLOW <= INT_MAX)
-#  undef O_NOFOLLOW
-# endif
-# if defined O_TTY_INIT && ! (INT_MIN <= O_TTY_INIT && O_TTY_INIT <= INT_MAX)
-#  undef O_TTY_INIT
-# endif
-#endif
-
-#if !defined O_DIRECT && defined O_DIRECTIO
-/* Tru64 spells it 'O_DIRECTIO'.  */
-# define O_DIRECT O_DIRECTIO
-#endif
-
-#if !defined O_CLOEXEC && defined O_NOINHERIT
-/* Mingw spells it 'O_NOINHERIT'.  */
-# define O_CLOEXEC O_NOINHERIT
-#endif
-
-#ifndef O_CLOEXEC
-# define O_CLOEXEC 0
-#endif
-
-#ifndef O_DIRECT
-# define O_DIRECT 0
-#endif
-
-#ifndef O_DIRECTORY
-# define O_DIRECTORY 0
-#endif
-
-#ifndef O_DSYNC
-# define O_DSYNC 0
-#endif
-
-#ifndef O_EXEC
-# define O_EXEC O_RDONLY /* This is often close enough in older systems.  */
-#endif
-
-#ifndef O_IGNORE_CTTY
-# define O_IGNORE_CTTY 0
-#endif
-
-#ifndef O_NDELAY
-# define O_NDELAY 0
-#endif
-
-#ifndef O_NOATIME
-# define O_NOATIME 0
-#endif
-
-#ifndef O_NONBLOCK
-# define O_NONBLOCK O_NDELAY
-#endif
-
-/* If the gnulib module 'nonblocking' is in use, guarantee a working non-zero
-   value of O_NONBLOCK.  Otherwise, O_NONBLOCK is defined (above) to O_NDELAY
-   or to 0 as fallback.  */
-#if @GNULIB_NONBLOCKING@
-# if O_NONBLOCK
-#  define GNULIB_defined_O_NONBLOCK 0
-# else
-#  define GNULIB_defined_O_NONBLOCK 1
-#  undef O_NONBLOCK
-#  define O_NONBLOCK 0x40000000
-# endif
-#endif
-
-#ifndef O_NOCTTY
-# define O_NOCTTY 0
-#endif
-
-#ifndef O_NOFOLLOW
-# define O_NOFOLLOW 0
-#endif
-
-#ifndef O_NOLINK
-# define O_NOLINK 0
-#endif
-
-#ifndef O_NOLINKS
-# define O_NOLINKS 0
-#endif
-
-#ifndef O_NOTRANS
-# define O_NOTRANS 0
-#endif
-
-#ifndef O_RSYNC
-# define O_RSYNC 0
-#endif
-
-#ifndef O_SEARCH
-# define O_SEARCH O_RDONLY /* This is often close enough in older systems.  */
-#endif
-
-#ifndef O_SYNC
-# define O_SYNC 0
-#endif
-
-#ifndef O_TTY_INIT
-# define O_TTY_INIT 0
-#endif
-
-#if ~O_ACCMODE & (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
-# undef O_ACCMODE
-# define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR | O_EXEC | O_SEARCH)
-#endif
-
-/* For systems that distinguish between text and binary I/O.
-   O_BINARY is usually declared in fcntl.h  */
-#if !defined O_BINARY && defined _O_BINARY
-  /* For MSC-compatible compilers.  */
-# define O_BINARY _O_BINARY
-# define O_TEXT _O_TEXT
-#endif
-
-#if defined __BEOS__ || defined __HAIKU__
-  /* BeOS 5 and Haiku have O_BINARY and O_TEXT, but they have no effect.  */
-# undef O_BINARY
-# undef O_TEXT
-#endif
-
-#ifndef O_BINARY
-# define O_BINARY 0
-# define O_TEXT 0
-#endif
-
-/* Fix up the AT_* macros.  */
-
-/* Work around a bug in Solaris 9 and 10: AT_FDCWD is positive.  Its
-   value exceeds INT_MAX, so its use as an int doesn't conform to the
-   C standard, and GCC and Sun C complain in some cases.  If the bug
-   is present, undef AT_FDCWD here, so it can be redefined below.  */
-#if 0 < AT_FDCWD && AT_FDCWD == 0xffd19553
-# undef AT_FDCWD
-#endif
-
-/* Use the same bit pattern as Solaris 9, but with the proper
-   signedness.  The bit pattern is important, in case this actually is
-   Solaris with the above workaround.  */
-#ifndef AT_FDCWD
-# define AT_FDCWD (-3041965)
-#endif
-
-/* Use the same values as Solaris 9.  This shouldn't matter, but
-   there's no real reason to differ.  */
-#ifndef AT_SYMLINK_NOFOLLOW
-# define AT_SYMLINK_NOFOLLOW 4096
-#endif
-
-#ifndef AT_REMOVEDIR
-# define AT_REMOVEDIR 1
-#endif
-
-/* Solaris 9 lacks these two, so just pick unique values.  */
-#ifndef AT_SYMLINK_FOLLOW
-# define AT_SYMLINK_FOLLOW 2
-#endif
-
-#ifndef AT_EACCESS
-# define AT_EACCESS 4
-#endif
-
-
-#endif /* _@GUARD_PREFIX@_FCNTL_H */
-#endif /* _@GUARD_PREFIX@_FCNTL_H */
-#endif
diff --git a/lib/fd-hook.c b/lib/fd-hook.c
deleted file mode 100644
index 0171cc60..00000000
--- a/lib/fd-hook.c
+++ /dev/null
@@ -1,116 +0,0 @@
-/* Hook for making making file descriptor functions close(), ioctl() extensible.
-   Copyright (C) 2009-2014 Free Software Foundation, Inc.
-   Written by Bruno Haible <bruno@clisp.org>, 2009.
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published
-   by the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include "fd-hook.h"
-
-#include <stdlib.h>
-
-/* Currently, this entire code is only needed for the handling of sockets
-   on native Windows platforms.  */
-#if WINDOWS_SOCKETS
-
-/* The first and last link in the doubly linked list.
-   Initially the list is empty.  */
-static struct fd_hook anchor = { &anchor, &anchor, NULL, NULL };
-
-int
-execute_close_hooks (const struct fd_hook *remaining_list, gl_close_fn primary,
-                     int fd)
-{
-  if (remaining_list == &anchor)
-    /* End of list reached.  */
-    return primary (fd);
-  else
-    return remaining_list->private_close_fn (remaining_list->private_next,
-                                             primary, fd);
-}
-
-int
-execute_all_close_hooks (gl_close_fn primary, int fd)
-{
-  return execute_close_hooks (anchor.private_next, primary, fd);
-}
-
-int
-execute_ioctl_hooks (const struct fd_hook *remaining_list, gl_ioctl_fn primary,
-                     int fd, int request, void *arg)
-{
-  if (remaining_list == &anchor)
-    /* End of list reached.  */
-    return primary (fd, request, arg);
-  else
-    return remaining_list->private_ioctl_fn (remaining_list->private_next,
-                                             primary, fd, request, arg);
-}
-
-int
-execute_all_ioctl_hooks (gl_ioctl_fn primary,
-                         int fd, int request, void *arg)
-{
-  return execute_ioctl_hooks (anchor.private_next, primary, fd, request, arg);
-}
-
-void
-register_fd_hook (close_hook_fn close_hook, ioctl_hook_fn ioctl_hook, struct fd_hook *link)
-{
-  if (close_hook == NULL)
-    close_hook = execute_close_hooks;
-  if (ioctl_hook == NULL)
-    ioctl_hook = execute_ioctl_hooks;
-
-  if (link->private_next == NULL && link->private_prev == NULL)
-    {
-      /* Add the link to the doubly linked list.  */
-      link->private_next = anchor.private_next;
-      link->private_prev = &anchor;
-      link->private_close_fn = close_hook;
-      link->private_ioctl_fn = ioctl_hook;
-      anchor.private_next->private_prev = link;
-      anchor.private_next = link;
-    }
-  else
-    {
-      /* The link is already in use.  */
-      if (link->private_close_fn != close_hook
-          || link->private_ioctl_fn != ioctl_hook)
-        abort ();
-    }
-}
-
-void
-unregister_fd_hook (struct fd_hook *link)
-{
-  struct fd_hook *next = link->private_next;
-  struct fd_hook *prev = link->private_prev;
-
-  if (next != NULL && prev != NULL)
-    {
-      /* The link is in use.  Remove it from the doubly linked list.  */
-      prev->private_next = next;
-      next->private_prev = prev;
-      /* Clear the link, to mark it unused.  */
-      link->private_next = NULL;
-      link->private_prev = NULL;
-      link->private_close_fn = NULL;
-      link->private_ioctl_fn = NULL;
-    }
-}
-
-#endif
diff --git a/lib/fd-hook.h b/lib/fd-hook.h
deleted file mode 100644
index 1aa264eb..00000000
--- a/lib/fd-hook.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/* Hook for making making file descriptor functions close(), ioctl() extensible.
-   Copyright (C) 2009-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published
-   by the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-
-#ifndef FD_HOOK_H
-#define FD_HOOK_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* Currently, this entire code is only needed for the handling of sockets
-   on native Windows platforms.  */
-#if WINDOWS_SOCKETS
-
-
-/* Type of function that closes FD.  */
-typedef int (*gl_close_fn) (int fd);
-
-/* Type of function that applies a control request to FD.  */
-typedef int (*gl_ioctl_fn) (int fd, int request, void *arg);
-
-/* An element of the list of file descriptor hooks.
-   In CLOS (Common Lisp Object System) speak, it consists of an "around"
-   method for the close() function and an "around" method for the ioctl()
-   function.
-   The fields of this structure are considered private.  */
-struct fd_hook
-{
-  /* Doubly linked list.  */
-  struct fd_hook *private_next;
-  struct fd_hook *private_prev;
-  /* Function that treats the types of FD that it knows about and calls
-     execute_close_hooks (REMAINING_LIST, PRIMARY, FD) as a fallback.  */
-  int (*private_close_fn) (const struct fd_hook *remaining_list,
-                           gl_close_fn primary,
-                           int fd);
-  /* Function that treats the types of FD that it knows about and calls
-     execute_ioctl_hooks (REMAINING_LIST, PRIMARY, FD, REQUEST, ARG) as a
-     fallback.  */
-  int (*private_ioctl_fn) (const struct fd_hook *remaining_list,
-                           gl_ioctl_fn primary,
-                           int fd, int request, void *arg);
-};
-
-/* This type of function closes FD, applying special knowledge for the FD
-   types it knows about, and calls
-   execute_close_hooks (REMAINING_LIST, PRIMARY, FD)
-   for the other FD types.
-   In CLOS speak, REMAINING_LIST is the remaining list of "around" methods,
-   and PRIMARY is the "primary" method for close().  */
-typedef int (*close_hook_fn) (const struct fd_hook *remaining_list,
-                              gl_close_fn primary,
-                              int fd);
-
-/* Execute the close hooks in REMAINING_LIST, with PRIMARY as "primary" method.
-   Return 0 or -1, like close() would do.  */
-extern int execute_close_hooks (const struct fd_hook *remaining_list,
-                                gl_close_fn primary,
-                                int fd);
-
-/* Execute all close hooks, with PRIMARY as "primary" method.
-   Return 0 or -1, like close() would do.  */
-extern int execute_all_close_hooks (gl_close_fn primary, int fd);
-
-/* This type of function applies a control request to FD, applying special
-   knowledge for the FD types it knows about, and calls
-   execute_ioctl_hooks (REMAINING_LIST, PRIMARY, FD, REQUEST, ARG)
-   for the other FD types.
-   In CLOS speak, REMAINING_LIST is the remaining list of "around" methods,
-   and PRIMARY is the "primary" method for ioctl().  */
-typedef int (*ioctl_hook_fn) (const struct fd_hook *remaining_list,
-                              gl_ioctl_fn primary,
-                              int fd, int request, void *arg);
-
-/* Execute the ioctl hooks in REMAINING_LIST, with PRIMARY as "primary" method.
-   Return 0 or -1, like ioctl() would do.  */
-extern int execute_ioctl_hooks (const struct fd_hook *remaining_list,
-                                gl_ioctl_fn primary,
-                                int fd, int request, void *arg);
-
-/* Execute all ioctl hooks, with PRIMARY as "primary" method.
-   Return 0 or -1, like ioctl() would do.  */
-extern int execute_all_ioctl_hooks (gl_ioctl_fn primary,
-                                    int fd, int request, void *arg);
-
-/* Add a function pair to the list of file descriptor hooks.
-   CLOSE_HOOK and IOCTL_HOOK may be NULL, indicating no change.
-   The LINK variable points to a piece of memory which is guaranteed to be
-   accessible until the corresponding call to unregister_fd_hook.  */
-extern void register_fd_hook (close_hook_fn close_hook, ioctl_hook_fn ioctl_hook,
-                              struct fd_hook *link);
-
-/* Removes a hook from the list of file descriptor hooks.  */
-extern void unregister_fd_hook (struct fd_hook *link);
-
-
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* FD_HOOK_H */
diff --git a/lib/forkpty.c b/lib/forkpty.c
deleted file mode 100644
index e8fe80e5..00000000
--- a/lib/forkpty.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/* Fork a child process attached to the slave of a pseudo-terminal.
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include <pty.h>
-
-#if HAVE_FORKPTY
-
-/* Provide a wrapper with the prototype of glibc-2.8 and newer.  */
-# undef forkpty
-int
-rpl_forkpty (int *amaster, char *name, struct termios const *termp,
-         struct winsize const *winp)
-{
-  /* Cast away const, for implementations with weaker prototypes.  */
-  return forkpty (amaster, name, (struct termios *) termp,
-                  (struct winsize *) winp);
-}
-
-#else /* AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10, mingw */
-
-# include <pty.h>
-# include <unistd.h>
-
-extern int login_tty (int slave_fd);
-
-int
-forkpty (int *amaster, char *name,
-         const struct termios *termp, const struct winsize *winp)
-{
-  int master, slave, pid;
-
-  if (openpty (&master, &slave, name, termp, winp) == -1)
-    return -1;
-
-  switch (pid = fork ())
-    {
-    case -1:
-      close (master);
-      close (slave);
-      return -1;
-
-    case 0:
-      /* Child.  */
-      close (master);
-      if (login_tty (slave))
-        _exit (1);
-      return 0;
-
-    default:
-      /* Parent.  */
-      *amaster = master;
-      close (slave);
-      return pid;
-    }
-}
-
-#endif
diff --git a/lib/ioctl.c b/lib/ioctl.c
deleted file mode 100644
index 89afb4ea..00000000
--- a/lib/ioctl.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* ioctl.c --- wrappers for Windows ioctl function
-
-   Copyright (C) 2008-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* Written by Paolo Bonzini */
-
-#include <config.h>
-
-#include <sys/ioctl.h>
-
-#include <stdarg.h>
-
-#if HAVE_IOCTL
-
-/* Provide a wrapper with the POSIX prototype.  */
-# undef ioctl
-int
-rpl_ioctl (int fd, int request, ... /* {void *,char *} arg */)
-{
-  void *buf;
-  va_list args;
-
-  va_start (args, request);
-  buf = va_arg (args, void *);
-  va_end (args);
-
-  /* Cast 'request' so that when the system's ioctl function takes a 64-bit
-     request argument, the value gets zero-extended, not sign-extended.  */
-  return ioctl (fd, (unsigned int) request, buf);
-}
-
-#else /* mingw */
-
-# include <errno.h>
-
-/* Get HANDLE.  */
-# define WIN32_LEAN_AND_MEAN
-# include <windows.h>
-
-# include "fd-hook.h"
-/* Get _get_osfhandle.  */
-# include "msvc-nothrow.h"
-
-static int
-primary_ioctl (int fd, int request, void *arg)
-{
-  /* We don't support FIONBIO on pipes here.  If you want to make pipe
-     fds non-blocking, use the gnulib 'nonblocking' module, until
-     gnulib implements fcntl F_GETFL / F_SETFL with O_NONBLOCK.  */
-
-  if ((HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE)
-    errno = ENOSYS;
-  else
-    errno = EBADF;
-  return -1;
-}
-
-int
-ioctl (int fd, int request, ... /* {void *,char *} arg */)
-{
-  void *arg;
-  va_list args;
-
-  va_start (args, request);
-  arg = va_arg (args, void *);
-  va_end (args);
-
-# if WINDOWS_SOCKETS
-  return execute_all_ioctl_hooks (primary_ioctl, fd, request, arg);
-# else
-  return primary_ioctl (fd, request, arg);
-# endif
-}
-
-#endif
diff --git a/lib/login_tty.c b/lib/login_tty.c
deleted file mode 100644
index e07f1607..00000000
--- a/lib/login_tty.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/* Assign a given terminal as controlling terminal and as standard input,
-   standard output, standard error of the current process.
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Currently no specification header.  */
-
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-
-int
-login_tty (int slave_fd)
-{
-  int i;
-
-  /* Create a new session.  */
-  setsid ();
-
-  /* Make fd the controlling terminal for the current process.
-     On BSD and OSF/1: There is ioctl TIOCSCTTY for this purpose.
-     On Solaris:
-       A terminal becomes the controlling terminal of a session
-       if it is being open()ed, at a moment when
-         1. it is not already the controlling terminal of some session, and
-         2. the process that open()s it is a session leader that does not have
-            a controlling terminal.
-       We assume condition 1, try to ensure condition 2, and then open() it.
-   */
-  for (i = 0; i < 3; i++)
-    if (i != slave_fd)
-      close (i);
-#ifdef TIOCSCTTY
-  if (ioctl (slave_fd, TIOCSCTTY, NULL) < 0)
-    return -1;
-#else
-  {
-    char *slave_name;
-    int dummy_fd;
-
-    slave_name = ttyname (slave_fd);
-    if (slave_name == NULL)
-      return -1;
-    dummy_fd = open (slave_name, O_RDWR);
-    if (dummy_fd < 0)
-      return -1;
-    close (dummy_fd);
-  }
-#endif
-
-  /* Assign fd to the standard input, standard output, and standard error of
-     the current process.  */
-  for (i = 0; i < 3; i++)
-    if (slave_fd != i)
-      if (dup2 (slave_fd, i) < 0)
-        return -1;
-  if (slave_fd >= 3)
-    close (slave_fd);
-
-  return 0;
-}
diff --git a/lib/msvc-inval.c b/lib/msvc-inval.c
deleted file mode 100644
index f83827fb..00000000
--- a/lib/msvc-inval.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Invalid parameter handler for MSVC runtime libraries.
-   Copyright (C) 2011-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include "msvc-inval.h"
-
-#if HAVE_MSVC_INVALID_PARAMETER_HANDLER \
-    && !(MSVC_INVALID_PARAMETER_HANDLING == SANE_LIBRARY_HANDLING)
-
-/* Get _invalid_parameter_handler type and _set_invalid_parameter_handler
-   declaration.  */
-# include <stdlib.h>
-
-# if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
-
-static void __cdecl
-gl_msvc_invalid_parameter_handler (const wchar_t *expression,
-                                   const wchar_t *function,
-                                   const wchar_t *file,
-                                   unsigned int line,
-                                   uintptr_t dummy)
-{
-}
-
-# else
-
-/* Get declarations of the native Windows API functions.  */
-#  define WIN32_LEAN_AND_MEAN
-#  include <windows.h>
-
-#  if defined _MSC_VER
-
-static void __cdecl
-gl_msvc_invalid_parameter_handler (const wchar_t *expression,
-                                   const wchar_t *function,
-                                   const wchar_t *file,
-                                   unsigned int line,
-                                   uintptr_t dummy)
-{
-  RaiseException (STATUS_GNULIB_INVALID_PARAMETER, 0, 0, NULL);
-}
-
-#  else
-
-/* An index to thread-local storage.  */
-static DWORD tls_index;
-static int tls_initialized /* = 0 */;
-
-/* Used as a fallback only.  */
-static struct gl_msvc_inval_per_thread not_per_thread;
-
-struct gl_msvc_inval_per_thread *
-gl_msvc_inval_current (void)
-{
-  if (!tls_initialized)
-    {
-      tls_index = TlsAlloc ();
-      tls_initialized = 1;
-    }
-  if (tls_index == TLS_OUT_OF_INDEXES)
-    /* TlsAlloc had failed.  */
-    return &not_per_thread;
-  else
-    {
-      struct gl_msvc_inval_per_thread *pointer =
-        (struct gl_msvc_inval_per_thread *) TlsGetValue (tls_index);
-      if (pointer == NULL)
-        {
-          /* First call.  Allocate a new 'struct gl_msvc_inval_per_thread'.  */
-          pointer =
-            (struct gl_msvc_inval_per_thread *)
-            malloc (sizeof (struct gl_msvc_inval_per_thread));
-          if (pointer == NULL)
-            /* Could not allocate memory.  Use the global storage.  */
-            pointer = &not_per_thread;
-          TlsSetValue (tls_index, pointer);
-        }
-      return pointer;
-    }
-}
-
-static void __cdecl
-gl_msvc_invalid_parameter_handler (const wchar_t *expression,
-                                   const wchar_t *function,
-                                   const wchar_t *file,
-                                   unsigned int line,
-                                   uintptr_t dummy)
-{
-  struct gl_msvc_inval_per_thread *current = gl_msvc_inval_current ();
-  if (current->restart_valid)
-    longjmp (current->restart, 1);
-  else
-    /* An invalid parameter notification from outside the gnulib code.
-       Give the caller a chance to intervene.  */
-    RaiseException (STATUS_GNULIB_INVALID_PARAMETER, 0, 0, NULL);
-}
-
-#  endif
-
-# endif
-
-static int gl_msvc_inval_initialized /* = 0 */;
-
-void
-gl_msvc_inval_ensure_handler (void)
-{
-  if (gl_msvc_inval_initialized == 0)
-    {
-      _set_invalid_parameter_handler (gl_msvc_invalid_parameter_handler);
-      gl_msvc_inval_initialized = 1;
-    }
-}
-
-#endif
diff --git a/lib/msvc-inval.h b/lib/msvc-inval.h
deleted file mode 100644
index a0ef540f..00000000
--- a/lib/msvc-inval.h
+++ /dev/null
@@ -1,222 +0,0 @@
-/* Invalid parameter handler for MSVC runtime libraries.
-   Copyright (C) 2011-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _MSVC_INVAL_H
-#define _MSVC_INVAL_H
-
-/* With MSVC runtime libraries with the "invalid parameter handler" concept,
-   functions like fprintf(), dup2(), or close() crash when the caller passes
-   an invalid argument.  But POSIX wants error codes (such as EINVAL or EBADF)
-   instead.
-   This file defines macros that turn such an invalid parameter notification
-   into a non-local exit.  An error code can then be produced at the target
-   of this exit.  You can thus write code like
-
-     TRY_MSVC_INVAL
-       {
-         <Code that can trigger an invalid parameter notification
-          but does not do 'return', 'break', 'continue', nor 'goto'.>
-       }
-     CATCH_MSVC_INVAL
-       {
-         <Code that handles an invalid parameter notification
-          but does not do 'return', 'break', 'continue', nor 'goto'.>
-       }
-     DONE_MSVC_INVAL;
-
-   This entire block expands to a single statement.
-
-   The handling of invalid parameters can be done in three ways:
-
-     * The default way, which is reasonable for programs (not libraries):
-       AC_DEFINE([MSVC_INVALID_PARAMETER_HANDLING], [DEFAULT_HANDLING])
-
-     * The way for libraries that make "hairy" calls (like close(-1), or
-       fclose(fp) where fileno(fp) is closed, or simply getdtablesize()):
-       AC_DEFINE([MSVC_INVALID_PARAMETER_HANDLING], [HAIRY_LIBRARY_HANDLING])
-
-     * The way for libraries that make no "hairy" calls:
-       AC_DEFINE([MSVC_INVALID_PARAMETER_HANDLING], [SANE_LIBRARY_HANDLING])
- */
-
-#define DEFAULT_HANDLING       0
-#define HAIRY_LIBRARY_HANDLING 1
-#define SANE_LIBRARY_HANDLING  2
-
-#if HAVE_MSVC_INVALID_PARAMETER_HANDLER \
-    && !(MSVC_INVALID_PARAMETER_HANDLING == SANE_LIBRARY_HANDLING)
-/* A native Windows platform with the "invalid parameter handler" concept,
-   and either DEFAULT_HANDLING or HAIRY_LIBRARY_HANDLING.  */
-
-# if MSVC_INVALID_PARAMETER_HANDLING == DEFAULT_HANDLING
-/* Default handling.  */
-
-#  ifdef __cplusplus
-extern "C" {
-#  endif
-
-/* Ensure that the invalid parameter handler in installed that just returns.
-   Because we assume no other part of the program installs a different
-   invalid parameter handler, this solution is multithread-safe.  */
-extern void gl_msvc_inval_ensure_handler (void);
-
-#  ifdef __cplusplus
-}
-#  endif
-
-#  define TRY_MSVC_INVAL \
-     do                                                                        \
-       {                                                                       \
-         gl_msvc_inval_ensure_handler ();                                      \
-         if (1)
-#  define CATCH_MSVC_INVAL \
-         else
-#  define DONE_MSVC_INVAL \
-       }                                                                       \
-     while (0)
-
-# else
-/* Handling for hairy libraries.  */
-
-#  include <excpt.h>
-
-/* Gnulib can define its own status codes, as described in the page
-   "Raising Software Exceptions" on microsoft.com
-   <http://msdn.microsoft.com/en-us/library/het71c37.aspx>.
-   Our status codes are composed of
-     - 0xE0000000, mandatory for all user-defined status codes,
-     - 0x474E550, a API identifier ("GNU"),
-     - 0, 1, 2, ..., used to distinguish different status codes from the
-       same API.  */
-#  define STATUS_GNULIB_INVALID_PARAMETER (0xE0000000 + 0x474E550 + 0)
-
-#  if defined _MSC_VER
-/* A compiler that supports __try/__except, as described in the page
-   "try-except statement" on microsoft.com
-   <http://msdn.microsoft.com/en-us/library/s58ftw19.aspx>.
-   With __try/__except, we can use the multithread-safe exception handling.  */
-
-#   ifdef __cplusplus
-extern "C" {
-#   endif
-
-/* Ensure that the invalid parameter handler in installed that raises a
-   software exception with code STATUS_GNULIB_INVALID_PARAMETER.
-   Because we assume no other part of the program installs a different
-   invalid parameter handler, this solution is multithread-safe.  */
-extern void gl_msvc_inval_ensure_handler (void);
-
-#   ifdef __cplusplus
-}
-#   endif
-
-#   define TRY_MSVC_INVAL \
-      do                                                                       \
-        {                                                                      \
-          gl_msvc_inval_ensure_handler ();                                     \
-          __try
-#   define CATCH_MSVC_INVAL \
-          __except (GetExceptionCode () == STATUS_GNULIB_INVALID_PARAMETER     \
-                    ? EXCEPTION_EXECUTE_HANDLER                                \
-                    : EXCEPTION_CONTINUE_SEARCH)
-#   define DONE_MSVC_INVAL \
-        }                                                                      \
-      while (0)
-
-#  else
-/* Any compiler.
-   We can only use setjmp/longjmp.  */
-
-#   include <setjmp.h>
-
-#   ifdef __cplusplus
-extern "C" {
-#   endif
-
-struct gl_msvc_inval_per_thread
-{
-  /* The restart that will resume execution at the code between
-     CATCH_MSVC_INVAL and DONE_MSVC_INVAL.  It is enabled only between
-     TRY_MSVC_INVAL and CATCH_MSVC_INVAL.  */
-  jmp_buf restart;
-
-  /* Tells whether the contents of restart is valid.  */
-  int restart_valid;
-};
-
-/* Ensure that the invalid parameter handler in installed that passes
-   control to the gl_msvc_inval_restart if it is valid, or raises a
-   software exception with code STATUS_GNULIB_INVALID_PARAMETER otherwise.
-   Because we assume no other part of the program installs a different
-   invalid parameter handler, this solution is multithread-safe.  */
-extern void gl_msvc_inval_ensure_handler (void);
-
-/* Return a pointer to the per-thread data for the current thread.  */
-extern struct gl_msvc_inval_per_thread *gl_msvc_inval_current (void);
-
-#   ifdef __cplusplus
-}
-#   endif
-
-#   define TRY_MSVC_INVAL \
-      do                                                                       \
-        {                                                                      \
-          struct gl_msvc_inval_per_thread *msvc_inval_current;                 \
-          gl_msvc_inval_ensure_handler ();                                     \
-          msvc_inval_current = gl_msvc_inval_current ();                       \
-          /* First, initialize gl_msvc_inval_restart.  */                      \
-          if (setjmp (msvc_inval_current->restart) == 0)                       \
-            {                                                                  \
-              /* Then, mark it as valid.  */                                   \
-              msvc_inval_current->restart_valid = 1;
-#   define CATCH_MSVC_INVAL \
-              /* Execution completed.                                          \
-                 Mark gl_msvc_inval_restart as invalid.  */                    \
-              msvc_inval_current->restart_valid = 0;                           \
-            }                                                                  \
-          else                                                                 \
-            {                                                                  \
-              /* Execution triggered an invalid parameter notification.        \
-                 Mark gl_msvc_inval_restart as invalid.  */                    \
-              msvc_inval_current->restart_valid = 0;
-#   define DONE_MSVC_INVAL \
-            }                                                                  \
-        }                                                                      \
-      while (0)
-
-#  endif
-
-# endif
-
-#else
-/* A platform that does not need to the invalid parameter handler,
-   or when SANE_LIBRARY_HANDLING is desired.  */
-
-/* The braces here avoid GCC warnings like
-   "warning: suggest explicit braces to avoid ambiguous 'else'".  */
-# define TRY_MSVC_INVAL \
-    do                                                                         \
-      {                                                                        \
-        if (1)
-# define CATCH_MSVC_INVAL \
-        else
-# define DONE_MSVC_INVAL \
-      }                                                                        \
-    while (0)
-
-#endif
-
-#endif /* _MSVC_INVAL_H */
diff --git a/lib/msvc-nothrow.c b/lib/msvc-nothrow.c
deleted file mode 100644
index b1e5f0c9..00000000
--- a/lib/msvc-nothrow.c
+++ /dev/null
@@ -1,49 +0,0 @@
-/* Wrappers that don't throw invalid parameter notifications
-   with MSVC runtime libraries.
-   Copyright (C) 2011-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include "msvc-nothrow.h"
-
-/* Get declarations of the native Windows API functions.  */
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-
-#include "msvc-inval.h"
-
-#undef _get_osfhandle
-
-#if HAVE_MSVC_INVALID_PARAMETER_HANDLER
-intptr_t
-_gl_nothrow_get_osfhandle (int fd)
-{
-  intptr_t result;
-
-  TRY_MSVC_INVAL
-    {
-      result = _get_osfhandle (fd);
-    }
-  CATCH_MSVC_INVAL
-    {
-      result = (intptr_t) INVALID_HANDLE_VALUE;
-    }
-  DONE_MSVC_INVAL;
-
-  return result;
-}
-#endif
diff --git a/lib/msvc-nothrow.h b/lib/msvc-nothrow.h
deleted file mode 100644
index 0d4dea58..00000000
--- a/lib/msvc-nothrow.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Wrappers that don't throw invalid parameter notifications
-   with MSVC runtime libraries.
-   Copyright (C) 2011-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along
-   with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _MSVC_NOTHROW_H
-#define _MSVC_NOTHROW_H
-
-/* With MSVC runtime libraries with the "invalid parameter handler" concept,
-   functions like fprintf(), dup2(), or close() crash when the caller passes
-   an invalid argument.  But POSIX wants error codes (such as EINVAL or EBADF)
-   instead.
-   This file defines wrappers that turn such an invalid parameter notification
-   into an error code.  */
-
-#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-
-/* Get original declaration of _get_osfhandle.  */
-# include <io.h>
-
-# if HAVE_MSVC_INVALID_PARAMETER_HANDLER
-
-/* Override _get_osfhandle.  */
-extern intptr_t _gl_nothrow_get_osfhandle (int fd);
-#  define _get_osfhandle _gl_nothrow_get_osfhandle
-
-# endif
-
-#endif
-
-#endif /* _MSVC_NOTHROW_H */
diff --git a/lib/openpty.c b/lib/openpty.c
deleted file mode 100644
index 63301428..00000000
--- a/lib/openpty.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/* Open a pseudo-terminal.
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include <pty.h>
-
-#if HAVE_OPENPTY
-
-/* Provide a wrapper with the prototype of glibc-2.8 and newer.  */
-# undef openpty
-int
-rpl_openpty (int *amaster, int *aslave, char *name,
-             struct termios const *termp, struct winsize const *winp)
-{
-  /* Cast away const, for implementations with weaker prototypes.  */
-  return openpty (amaster, aslave, name, (struct termios *) termp,
-                  (struct winsize *) winp);
-}
-
-#elif (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ /* mingw */
-
-# include <errno.h>
-
-int
-openpty (int *amaster _GL_UNUSED, int *aslave _GL_UNUSED,
-         char *name _GL_UNUSED,
-         struct termios const *termp _GL_UNUSED,
-         struct winsize const *winp _GL_UNUSED)
-{
-  /* Mingw lacks pseudo-terminals altogether.  */
-  errno = ENOSYS;
-  return -1;
-}
-
-#else /* AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 10 */
-
-# include <fcntl.h>
-# include <stdlib.h>
-# include <string.h>
-# include <sys/ioctl.h>
-# include <termios.h>
-# include <unistd.h>
-# if defined __sun || defined __hpux /* Solaris, HP-UX */
-#  include <stropts.h>
-# endif
-
-int
-openpty (int *amaster, int *aslave, char *name,
-         struct termios const *termp, struct winsize const *winp)
-{
-  int master;
-  char *slave_name;
-  int slave;
-
-# if HAVE__GETPTY /* IRIX */
-
-  slave_name = _getpty (&master, O_RDWR, 0622, 0);
-  if (slave_name == NULL)
-    return -1;
-
-# else /* AIX 5.1, HP-UX 11, Solaris 10, mingw */
-
-  /* This call uses the 'posix_openpt' module.  */
-  master = posix_openpt (O_RDWR | O_NOCTTY);
-  if (master < 0)
-    return -1;
-
-# endif
-
-  /* This call does not require a dependency to the 'grantpt' module,
-     because AIX, HP-UX, IRIX, Solaris all have the grantpt() function.  */
-  if (grantpt (master))
-    goto fail;
-
-  /* This call does not require a dependency to the 'unlockpt' module,
-     because AIX, HP-UX, IRIX, Solaris all have the unlockpt() function.  */
-  if (unlockpt (master))
-    goto fail;
-
-# if !HAVE__GETPTY /* !IRIX */
-  slave_name = ptsname (master);
-  if (slave_name == NULL)
-    goto fail;
-# endif
-
-  slave = open (slave_name, O_RDWR | O_NOCTTY);
-  if (slave == -1)
-    goto fail;
-
-# if defined __sun || defined __hpux /* Solaris, HP-UX */
-  if (ioctl (slave, I_PUSH, "ptem") < 0
-      || ioctl (slave, I_PUSH, "ldterm") < 0
-#  if defined __sun
-      || ioctl (slave, I_PUSH, "ttcompat") < 0
-#  endif
-     )
-    {
-      close (slave);
-      goto fail;
-    }
-# endif
-
-  /* XXX Should we ignore errors here?  */
-  if (termp)
-    tcsetattr (slave, TCSAFLUSH, termp);
-  if (winp)
-    ioctl (slave, TIOCSWINSZ, winp);
-
-  *amaster = master;
-  *aslave = slave;
-  if (name != NULL)
-    strcpy (name, slave_name);
-
-  return 0;
-
- fail:
-  close (master);
-  return -1;
-}
-
-#endif
diff --git a/lib/posix_openpt.c b/lib/posix_openpt.c
deleted file mode 100644
index 92eec2e9..00000000
--- a/lib/posix_openpt.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/* Open the master side of a pseudo-terminal.
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-/* Specification.  */
-#include <stdlib.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#if defined __OpenBSD__
-# include <sys/ioctl.h>
-# include <sys/tty.h>
-#endif
-
-/* posix_openpt() is already provided on
-     glibc >= 2.2.1 (but is a stub on GNU/Hurd),
-     Mac OS X >= 10.4,
-     FreeBSD >= 5.1 (lived in src/lib/libc/stdlib/grantpt.c before 8.0),
-     NetBSD >= 3.0,
-     AIX >= 5.2, HP-UX >= 11.31, Solaris >= 10, Cygwin >= 1.7.
-   Thus, this replacement function is compiled on
-     Mac OS X 10.3, OpenBSD 4.9, Minix 3.1.8,
-     AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9,
-     Cygwin 1.5.x, mingw, MSVC 9, Interix 3.5, BeOS.
-   Among these:
-     - AIX has /dev/ptc.
-     - HP-UX 10..11, IRIX 6.5, OSF/1 5.1, Solaris 2.6..9, Cygwin 1.5
-       have /dev/ptmx.
-     - HP-UX 10..11 also has /dev/ptym/clone, but this should not be needed.
-     - OpenBSD 4.9 has /dev/ptm and the PTMGET ioctl.
-     - Minix 3.1.8 have a list of pseudo-terminal devices in /dev.
-     - On native Windows, there are no ttys at all.  */
-
-int
-posix_openpt (int flags)
-{
-  int master;
-
-#ifdef _AIX /* AIX */
-
-  master = open ("/dev/ptc", flags);
-
-#elif (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ /* mingw */
-
-  /* Mingw lacks pseudo-terminals altogether.  */
-  master = -1;
-  errno = ENOSYS;
-
-#elif defined __OpenBSD__
-
-  /* On OpenBSD, master and slave of a pseudo-terminal are allocated together,
-     by opening /dev/ptm and applying the PTMGET ioctl to it.  */
-  int fd;
-  struct ptmget data;
-
-  fd = open (PATH_PTMDEV, O_RDWR);
-  if (fd >= 0)
-    {
-      if (ioctl (fd, PTMGET, &data) >= 0)
-        {
-          master = data.cfd;
-          close (data.sfd);
-          close (fd);
-        }
-      else
-        {
-          int saved_errno = errno;
-          close (fd);
-          errno = saved_errno;
-          master = -1;
-        }
-    }
-  else
-    master = -1;
-
-#else /* Mac OS X, Minix, HP-UX, IRIX, OSF/1, Solaris 9, Cygwin 1.5 */
-
-  /* Most systems that lack posix_openpt() have /dev/ptmx.  */
-  master = open ("/dev/ptmx", flags);
-
-  /* If all this does not work, we could try to open, one by one:
-     - On Mac OS X: /dev/pty[p-w][0-9a-f]
-     - On *BSD:     /dev/pty[p-sP-S][0-9a-v]
-     - On Minix:    /dev/pty[p-q][0-9a-f]
-     - On AIX:      /dev/ptyp[0-9a-f]
-     - On HP-UX:    /dev/pty[p-r][0-9a-f]
-     - On OSF/1:    /dev/pty[p-q][0-9a-f]
-     - On Solaris:  /dev/pty[p-r][0-9a-f]
-   */
-
-#endif
-
-  return master;
-}
diff --git a/lib/pty.in.h b/lib/pty.in.h
deleted file mode 100644
index 35a2274f..00000000
--- a/lib/pty.in.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/* Substitute for and wrapper around <pty.h>.
-   Copyright (C) 2010-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _@GUARD_PREFIX@_PTY_H
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-/* The include_next requires a split double-inclusion guard.  */
-#if @HAVE_PTY_H@
-# @INCLUDE_NEXT@ @NEXT_PTY_H@
-#endif
-
-#ifndef _@GUARD_PREFIX@_PTY_H
-#define _@GUARD_PREFIX@_PTY_H
-
-/* Some platforms declare this in a different header than glibc.  */
-#if @HAVE_UTIL_H@
-# include <util.h>
-#endif
-#if @HAVE_LIBUTIL_H@
-/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0.  */
-# include <sys/types.h>
-# include <libutil.h>
-#endif
-
-/* Get 'struct termios' and 'struct winsize'.  */
-#include <termios.h>
-#if defined _AIX
-# include <sys/ioctl.h>
-#endif
-/* Mingw lacks 'struct termios' and 'struct winsize', but a forward
-   declaration of an opaque type is sufficient to allow compilation of
-   a stub openpty().  */
-struct termios;
-struct winsize;
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-
-
-/* Declare overridden functions.  */
-
-#if @GNULIB_FORKPTY@
-/* Create pseudo tty master slave pair and set terminal attributes
-   according to TERMP and WINP.  Fork a child process attached to the
-   slave end.  Return a handle for the master end in *AMASTER, and
-   return the name of the slave end in NAME.  */
-# if @REPLACE_FORKPTY@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef forkpty
-#   define forkpty rpl_forkpty
-#  endif
-_GL_FUNCDECL_RPL (forkpty, int,
-                  (int *amaster, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-_GL_CXXALIAS_RPL (forkpty, int,
-                  (int *amaster, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-# else
-#  if !@HAVE_FORKPTY@
-_GL_FUNCDECL_SYS (forkpty, int,
-                  (int *amaster, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-#  endif
-_GL_CXXALIAS_SYS (forkpty, int,
-                  (int *amaster, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-# endif
-_GL_CXXALIASWARN (forkpty);
-#elif defined GNULIB_POSIXCHECK
-# undef forkpty
-# if HAVE_RAW_DECL_FORKPTY
-_GL_WARN_ON_USE (forkpty, "forkpty is not declared consistently - "
-                 "use gnulib module forkpty for portability");
-# endif
-#endif
-
-#if @GNULIB_OPENPTY@
-/* Create pseudo tty master slave pair and set terminal attributes
-   according to TERMP and WINP.  Return handles for both ends in
-   *AMASTER and *ASLAVE, and return the name of the slave end in NAME.  */
-# if @REPLACE_OPENPTY@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef openpty
-#   define openpty rpl_openpty
-#  endif
-_GL_FUNCDECL_RPL (openpty, int,
-                  (int *amaster, int *aslave, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-_GL_CXXALIAS_RPL (openpty, int,
-                  (int *amaster, int *aslave, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-# else
-#  if !@HAVE_OPENPTY@
-_GL_FUNCDECL_SYS (openpty, int,
-                  (int *amaster, int *aslave, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-#  endif
-_GL_CXXALIAS_SYS (openpty, int,
-                  (int *amaster, int *aslave, char *name,
-                   struct termios const *termp, struct winsize const *winp));
-# endif
-_GL_CXXALIASWARN (openpty);
-#elif defined GNULIB_POSIXCHECK
-# undef openpty
-# if HAVE_RAW_DECL_OPENPTY
-_GL_WARN_ON_USE (openpty, "openpty is not declared consistently - "
-                 "use gnulib module openpty for portability");
-# endif
-#endif
-
-
-#endif /* _@GUARD_PREFIX@_PTY_H */
-#endif /* _@GUARD_PREFIX@_PTY_H */
diff --git a/lib/stdalign.in.h b/lib/stdalign.in.h
deleted file mode 100644
index dcaab55b..00000000
--- a/lib/stdalign.in.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/* A substitute for ISO C11 <stdalign.h>.
-
-   Copyright 2011-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-/* Written by Paul Eggert and Bruno Haible.  */
-
-#ifndef _GL_STDALIGN_H
-#define _GL_STDALIGN_H
-
-/* ISO C11 <stdalign.h> for platforms that lack it.
-
-   References:
-   ISO C11 (latest free draft
-   <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf>)
-   sections 6.5.3.4, 6.7.5, 7.15.
-   C++11 (latest free draft
-   <http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf>)
-   section 18.10. */
-
-/* alignof (TYPE), also known as _Alignof (TYPE), yields the alignment
-   requirement of a structure member (i.e., slot or field) that is of
-   type TYPE, as an integer constant expression.
-
-   This differs from GCC's __alignof__ operator, which can yield a
-   better-performing alignment for an object of that type.  For
-   example, on x86 with GCC, __alignof__ (double) and __alignof__
-   (long long) are 8, whereas alignof (double) and alignof (long long)
-   are 4 unless the option '-malign-double' is used.
-
-   The result cannot be used as a value for an 'enum' constant, if you
-   want to be portable to HP-UX 10.20 cc and AIX 3.2.5 xlc.
-
-   Include <stddef.h> for offsetof.  */
-#include <stddef.h>
-
-/* FreeBSD 9.1 <sys/cdefs.h>, included by <stddef.h> and lots of other
-   standard headers, defines conflicting implementations of _Alignas
-   and _Alignof that are no better than ours; override them.  */
-#undef _Alignas
-#undef _Alignof
-
-#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112
-# ifdef __cplusplus
-#  if 201103 <= __cplusplus
-#   define _Alignof(type) alignof (type)
-#  else
-   template <class __t> struct __alignof_helper { char __a; __t __b; };
-#   define _Alignof(type) offsetof (__alignof_helper<type>, __b)
-#  endif
-# else
-#  define _Alignof(type) offsetof (struct { char __a; type __b; }, __b)
-# endif
-#endif
-#define alignof _Alignof
-#define __alignof_is_defined 1
-
-/* alignas (A), also known as _Alignas (A), aligns a variable or type
-   to the alignment A, where A is an integer constant expression.  For
-   example:
-
-      int alignas (8) foo;
-      struct s { int a; int alignas (8) bar; };
-
-   aligns the address of FOO and the offset of BAR to be multiples of 8.
-
-   A should be a power of two that is at least the type's alignment
-   and at most the implementation's alignment limit.  This limit is
-   2**28 on typical GNUish hosts, and 2**13 on MSVC.  To be portable
-   to MSVC through at least version 10.0, A should be an integer
-   constant, as MSVC does not support expressions such as 1 << 3.
-   To be portable to Sun C 5.11, do not align auto variables to
-   anything stricter than their default alignment.
-
-   The following C11 requirements are not supported here:
-
-     - If A is zero, alignas has no effect.
-     - alignas can be used multiple times; the strictest one wins.
-     - alignas (TYPE) is equivalent to alignas (alignof (TYPE)).
-
-   */
-
-#if !defined __STDC_VERSION__ || __STDC_VERSION__ < 201112
-# if defined __cplusplus && 201103 <= __cplusplus
-#  define _Alignas(a) alignas (a)
-# elif (__GNUC__ || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
-        || __ICC || 0x5110 <= __SUNPRO_C)
-#  define _Alignas(a) __attribute__ ((__aligned__ (a)))
-# elif 1300 <= _MSC_VER
-#  define _Alignas(a) __declspec (align (a))
-# endif
-#endif
-#if defined _Alignas || (defined __STDC_VERSION && 201112 <= __STDC_VERSION__)
-# define alignas _Alignas
-# define __alignas_is_defined 1
-#endif
-
-#endif /* _GL_STDALIGN_H */
diff --git a/lib/stddef.in.h b/lib/stddef.in.h
deleted file mode 100644
index f5c0e056..00000000
--- a/lib/stddef.in.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/* A substitute for POSIX 2008 <stddef.h>, for platforms that have issues.
-
-   Copyright (C) 2009-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-/* Written by Eric Blake.  */
-
-/*
- * POSIX 2008 <stddef.h> for platforms that have issues.
- * <http://www.opengroup.org/susv3xbd/stddef.h.html>
- */
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-#if defined __need_wchar_t || defined __need_size_t  \
-  || defined __need_ptrdiff_t || defined __need_NULL \
-  || defined __need_wint_t
-/* Special invocation convention inside gcc header files.  In
-   particular, gcc provides a version of <stddef.h> that blindly
-   redefines NULL even when __need_wint_t was defined, even though
-   wint_t is not normally provided by <stddef.h>.  Hence, we must
-   remember if special invocation has ever been used to obtain wint_t,
-   in which case we need to clean up NULL yet again.  */
-
-# if !(defined _@GUARD_PREFIX@_STDDEF_H && defined _GL_STDDEF_WINT_T)
-#  ifdef __need_wint_t
-#   undef _@GUARD_PREFIX@_STDDEF_H
-#   define _GL_STDDEF_WINT_T
-#  endif
-#  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
-# endif
-
-#else
-/* Normal invocation convention.  */
-
-# ifndef _@GUARD_PREFIX@_STDDEF_H
-
-/* The include_next requires a split double-inclusion guard.  */
-
-#  @INCLUDE_NEXT@ @NEXT_STDDEF_H@
-
-#  ifndef _@GUARD_PREFIX@_STDDEF_H
-#   define _@GUARD_PREFIX@_STDDEF_H
-
-/* On NetBSD 5.0, the definition of NULL lacks proper parentheses.  */
-#if @REPLACE_NULL@
-# undef NULL
-# ifdef __cplusplus
-   /* ISO C++ says that the macro NULL must expand to an integer constant
-      expression, hence '((void *) 0)' is not allowed in C++.  */
-#  if __GNUG__ >= 3
-    /* GNU C++ has a __null macro that behaves like an integer ('int' or
-       'long') but has the same size as a pointer.  Use that, to avoid
-       warnings.  */
-#   define NULL __null
-#  else
-#   define NULL 0L
-#  endif
-# else
-#  define NULL ((void *) 0)
-# endif
-#endif
-
-/* Some platforms lack wchar_t.  */
-#if !@HAVE_WCHAR_T@
-# define wchar_t int
-#endif
-
-#  endif /* _@GUARD_PREFIX@_STDDEF_H */
-# endif /* _@GUARD_PREFIX@_STDDEF_H */
-#endif /* __need_XXX */
diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
deleted file mode 100644
index 46e10dba..00000000
--- a/lib/stdlib.in.h
+++ /dev/null
@@ -1,954 +0,0 @@
-/* A GNU-like <stdlib.h>.
-
-   Copyright (C) 1995, 2001-2004, 2006-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-#if defined __need_system_stdlib_h || defined __need_malloc_and_calloc
-/* Special invocation conventions inside some gnulib header files,
-   and inside some glibc header files, respectively.  */
-
-#@INCLUDE_NEXT@ @NEXT_STDLIB_H@
-
-#else
-/* Normal invocation convention.  */
-
-#ifndef _@GUARD_PREFIX@_STDLIB_H
-
-/* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT@ @NEXT_STDLIB_H@
-
-#ifndef _@GUARD_PREFIX@_STDLIB_H
-#define _@GUARD_PREFIX@_STDLIB_H
-
-/* NetBSD 5.0 mis-defines NULL.  */
-#include <stddef.h>
-
-/* MirBSD 10 defines WEXITSTATUS in <sys/wait.h>, not in <stdlib.h>.  */
-#if @GNULIB_SYSTEM_POSIX@ && !defined WEXITSTATUS
-# include <sys/wait.h>
-#endif
-
-/* Solaris declares getloadavg() in <sys/loadavg.h>.  */
-#if (@GNULIB_GETLOADAVG@ || defined GNULIB_POSIXCHECK) && @HAVE_SYS_LOADAVG_H@
-# include <sys/loadavg.h>
-#endif
-
-/* Native Windows platforms declare mktemp() in <io.h>.  */
-#if 0 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
-# include <io.h>
-#endif
-
-#if @GNULIB_RANDOM_R@
-
-/* OSF/1 5.1 declares 'struct random_data' in <random.h>, which is included
-   from <stdlib.h> if _REENTRANT is defined.  Include it whenever we need
-   'struct random_data'.  */
-# if @HAVE_RANDOM_H@
-#  include <random.h>
-# endif
-
-# if !@HAVE_STRUCT_RANDOM_DATA@ || @REPLACE_RANDOM_R@ || !@HAVE_RANDOM_R@
-#  include <stdint.h>
-# endif
-
-# if !@HAVE_STRUCT_RANDOM_DATA@
-/* Define 'struct random_data'.
-   But allow multiple gnulib generated <stdlib.h> replacements to coexist.  */
-#  if !GNULIB_defined_struct_random_data
-struct random_data
-{
-  int32_t *fptr;                /* Front pointer.  */
-  int32_t *rptr;                /* Rear pointer.  */
-  int32_t *state;               /* Array of state values.  */
-  int rand_type;                /* Type of random number generator.  */
-  int rand_deg;                 /* Degree of random number generator.  */
-  int rand_sep;                 /* Distance between front and rear.  */
-  int32_t *end_ptr;             /* Pointer behind state table.  */
-};
-#   define GNULIB_defined_struct_random_data 1
-#  endif
-# endif
-#endif
-
-#if (@GNULIB_MKSTEMP@ || @GNULIB_MKSTEMPS@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
-/* On Mac OS X 10.3, only <unistd.h> declares mkstemp.  */
-/* On Mac OS X 10.5, only <unistd.h> declares mkstemps.  */
-/* On Cygwin 1.7.1, only <unistd.h> declares getsubopt.  */
-/* But avoid namespace pollution on glibc systems and native Windows.  */
-# include <unistd.h>
-#endif
-
-/* The __attribute__ feature is available in gcc versions 2.5 and later.
-   The attribute __pure__ was added in gcc 2.96.  */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
-# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
-#else
-# define _GL_ATTRIBUTE_PURE /* empty */
-#endif
-
-/* The definition of _Noreturn is copied here.  */
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-
-/* The definition of _GL_ARG_NONNULL is copied here.  */
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-
-
-/* Some systems do not define EXIT_*, despite otherwise supporting C89.  */
-#ifndef EXIT_SUCCESS
-# define EXIT_SUCCESS 0
-#endif
-/* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
-   with proper operation of xargs.  */
-#ifndef EXIT_FAILURE
-# define EXIT_FAILURE 1
-#elif EXIT_FAILURE != 1
-# undef EXIT_FAILURE
-# define EXIT_FAILURE 1
-#endif
-
-
-#if @GNULIB__EXIT@
-/* Terminate the current process with the given return code, without running
-   the 'atexit' handlers.  */
-# if !@HAVE__EXIT@
-_GL_FUNCDECL_SYS (_Exit, _Noreturn void, (int status));
-# endif
-_GL_CXXALIAS_SYS (_Exit, void, (int status));
-_GL_CXXALIASWARN (_Exit);
-#elif defined GNULIB_POSIXCHECK
-# undef _Exit
-# if HAVE_RAW_DECL__EXIT
-_GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
-                 "use gnulib module _Exit for portability");
-# endif
-#endif
-
-
-#if @GNULIB_ATOLL@
-/* Parse a signed decimal integer.
-   Returns the value of the integer.  Errors are not detected.  */
-# if !@HAVE_ATOLL@
-_GL_FUNCDECL_SYS (atoll, long long, (const char *string)
-                                    _GL_ATTRIBUTE_PURE
-                                    _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (atoll, long long, (const char *string));
-_GL_CXXALIASWARN (atoll);
-#elif defined GNULIB_POSIXCHECK
-# undef atoll
-# if HAVE_RAW_DECL_ATOLL
-_GL_WARN_ON_USE (atoll, "atoll is unportable - "
-                 "use gnulib module atoll for portability");
-# endif
-#endif
-
-#if @GNULIB_CALLOC_POSIX@
-# if @REPLACE_CALLOC@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef calloc
-#   define calloc rpl_calloc
-#  endif
-_GL_FUNCDECL_RPL (calloc, void *, (size_t nmemb, size_t size));
-_GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
-# else
-_GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
-# endif
-_GL_CXXALIASWARN (calloc);
-#elif defined GNULIB_POSIXCHECK
-# undef calloc
-/* Assume calloc is always declared.  */
-_GL_WARN_ON_USE (calloc, "calloc is not POSIX compliant everywhere - "
-                 "use gnulib module calloc-posix for portability");
-#endif
-
-#if @GNULIB_CANONICALIZE_FILE_NAME@
-# if @REPLACE_CANONICALIZE_FILE_NAME@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define canonicalize_file_name rpl_canonicalize_file_name
-#  endif
-_GL_FUNCDECL_RPL (canonicalize_file_name, char *, (const char *name)
-                                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (canonicalize_file_name, char *, (const char *name));
-# else
-#  if !@HAVE_CANONICALIZE_FILE_NAME@
-_GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name)
-                                                  _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (canonicalize_file_name, char *, (const char *name));
-# endif
-_GL_CXXALIASWARN (canonicalize_file_name);
-#elif defined GNULIB_POSIXCHECK
-# undef canonicalize_file_name
-# if HAVE_RAW_DECL_CANONICALIZE_FILE_NAME
-_GL_WARN_ON_USE (canonicalize_file_name,
-                 "canonicalize_file_name is unportable - "
-                 "use gnulib module canonicalize-lgpl for portability");
-# endif
-#endif
-
-#if @GNULIB_GETLOADAVG@
-/* Store max(NELEM,3) load average numbers in LOADAVG[].
-   The three numbers are the load average of the last 1 minute, the last 5
-   minutes, and the last 15 minutes, respectively.
-   LOADAVG is an array of NELEM numbers.  */
-# if !@HAVE_DECL_GETLOADAVG@
-_GL_FUNCDECL_SYS (getloadavg, int, (double loadavg[], int nelem)
-                                   _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (getloadavg, int, (double loadavg[], int nelem));
-_GL_CXXALIASWARN (getloadavg);
-#elif defined GNULIB_POSIXCHECK
-# undef getloadavg
-# if HAVE_RAW_DECL_GETLOADAVG
-_GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
-                 "use gnulib module getloadavg for portability");
-# endif
-#endif
-
-#if @GNULIB_GETSUBOPT@
-/* Assuming *OPTIONP is a comma separated list of elements of the form
-   "token" or "token=value", getsubopt parses the first of these elements.
-   If the first element refers to a "token" that is member of the given
-   NULL-terminated array of tokens:
-     - It replaces the comma with a NUL byte, updates *OPTIONP to point past
-       the first option and the comma, sets *VALUEP to the value of the
-       element (or NULL if it doesn't contain an "=" sign),
-     - It returns the index of the "token" in the given array of tokens.
-   Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
-   For more details see the POSIX:2001 specification.
-   http://www.opengroup.org/susv3xsh/getsubopt.html */
-# if !@HAVE_GETSUBOPT@
-_GL_FUNCDECL_SYS (getsubopt, int,
-                  (char **optionp, char *const *tokens, char **valuep)
-                  _GL_ARG_NONNULL ((1, 2, 3)));
-# endif
-_GL_CXXALIAS_SYS (getsubopt, int,
-                  (char **optionp, char *const *tokens, char **valuep));
-_GL_CXXALIASWARN (getsubopt);
-#elif defined GNULIB_POSIXCHECK
-# undef getsubopt
-# if HAVE_RAW_DECL_GETSUBOPT
-_GL_WARN_ON_USE (getsubopt, "getsubopt is unportable - "
-                 "use gnulib module getsubopt for portability");
-# endif
-#endif
-
-#if @GNULIB_GRANTPT@
-/* Change the ownership and access permission of the slave side of the
-   pseudo-terminal whose master side is specified by FD.  */
-# if !@HAVE_GRANTPT@
-_GL_FUNCDECL_SYS (grantpt, int, (int fd));
-# endif
-_GL_CXXALIAS_SYS (grantpt, int, (int fd));
-_GL_CXXALIASWARN (grantpt);
-#elif defined GNULIB_POSIXCHECK
-# undef grantpt
-# if HAVE_RAW_DECL_GRANTPT
-_GL_WARN_ON_USE (grantpt, "grantpt is not portable - "
-                 "use gnulib module grantpt for portability");
-# endif
-#endif
-
-/* If _GL_USE_STDLIB_ALLOC is nonzero, the including module does not
-   rely on GNU or POSIX semantics for malloc and realloc (for example,
-   by never specifying a zero size), so it does not need malloc or
-   realloc to be redefined.  */
-#if @GNULIB_MALLOC_POSIX@
-# if @REPLACE_MALLOC@
-#  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
-        || _GL_USE_STDLIB_ALLOC)
-#   undef malloc
-#   define malloc rpl_malloc
-#  endif
-_GL_FUNCDECL_RPL (malloc, void *, (size_t size));
-_GL_CXXALIAS_RPL (malloc, void *, (size_t size));
-# else
-_GL_CXXALIAS_SYS (malloc, void *, (size_t size));
-# endif
-_GL_CXXALIASWARN (malloc);
-#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
-# undef malloc
-/* Assume malloc is always declared.  */
-_GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
-                 "use gnulib module malloc-posix for portability");
-#endif
-
-/* Convert a multibyte character to a wide character.  */
-#if @GNULIB_MBTOWC@
-# if @REPLACE_MBTOWC@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef mbtowc
-#   define mbtowc rpl_mbtowc
-#  endif
-_GL_FUNCDECL_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
-_GL_CXXALIAS_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
-# else
-_GL_CXXALIAS_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
-# endif
-_GL_CXXALIASWARN (mbtowc);
-#endif
-
-#if @GNULIB_MKDTEMP@
-/* Create a unique temporary directory from TEMPLATE.
-   The last six characters of TEMPLATE must be "XXXXXX";
-   they are replaced with a string that makes the directory name unique.
-   Returns TEMPLATE, or a null pointer if it cannot get a unique name.
-   The directory is created mode 700.  */
-# if !@HAVE_MKDTEMP@
-_GL_FUNCDECL_SYS (mkdtemp, char *, (char * /*template*/) _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (mkdtemp, char *, (char * /*template*/));
-_GL_CXXALIASWARN (mkdtemp);
-#elif defined GNULIB_POSIXCHECK
-# undef mkdtemp
-# if HAVE_RAW_DECL_MKDTEMP
-_GL_WARN_ON_USE (mkdtemp, "mkdtemp is unportable - "
-                 "use gnulib module mkdtemp for portability");
-# endif
-#endif
-
-#if @GNULIB_MKOSTEMP@
-/* Create a unique temporary file from TEMPLATE.
-   The last six characters of TEMPLATE must be "XXXXXX";
-   they are replaced with a string that makes the file name unique.
-   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
-   and O_TEXT, O_BINARY (defined in "binary-io.h").
-   The file is then created, with the specified flags, ensuring it didn't exist
-   before.
-   The file is created read-write (mask at least 0600 & ~umask), but it may be
-   world-readable and world-writable (mask 0666 & ~umask), depending on the
-   implementation.
-   Returns the open file descriptor if successful, otherwise -1 and errno
-   set.  */
-# if !@HAVE_MKOSTEMP@
-_GL_FUNCDECL_SYS (mkostemp, int, (char * /*template*/, int /*flags*/)
-                                 _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (mkostemp, int, (char * /*template*/, int /*flags*/));
-_GL_CXXALIASWARN (mkostemp);
-#elif defined GNULIB_POSIXCHECK
-# undef mkostemp
-# if HAVE_RAW_DECL_MKOSTEMP
-_GL_WARN_ON_USE (mkostemp, "mkostemp is unportable - "
-                 "use gnulib module mkostemp for portability");
-# endif
-#endif
-
-#if @GNULIB_MKOSTEMPS@
-/* Create a unique temporary file from TEMPLATE.
-   The last six characters of TEMPLATE before a suffix of length
-   SUFFIXLEN must be "XXXXXX";
-   they are replaced with a string that makes the file name unique.
-   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
-   and O_TEXT, O_BINARY (defined in "binary-io.h").
-   The file is then created, with the specified flags, ensuring it didn't exist
-   before.
-   The file is created read-write (mask at least 0600 & ~umask), but it may be
-   world-readable and world-writable (mask 0666 & ~umask), depending on the
-   implementation.
-   Returns the open file descriptor if successful, otherwise -1 and errno
-   set.  */
-# if !@HAVE_MKOSTEMPS@
-_GL_FUNCDECL_SYS (mkostemps, int,
-                  (char * /*template*/, int /*suffixlen*/, int /*flags*/)
-                  _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (mkostemps, int,
-                  (char * /*template*/, int /*suffixlen*/, int /*flags*/));
-_GL_CXXALIASWARN (mkostemps);
-#elif defined GNULIB_POSIXCHECK
-# undef mkostemps
-# if HAVE_RAW_DECL_MKOSTEMPS
-_GL_WARN_ON_USE (mkostemps, "mkostemps is unportable - "
-                 "use gnulib module mkostemps for portability");
-# endif
-#endif
-
-#if @GNULIB_MKSTEMP@
-/* Create a unique temporary file from TEMPLATE.
-   The last six characters of TEMPLATE must be "XXXXXX";
-   they are replaced with a string that makes the file name unique.
-   The file is then created, ensuring it didn't exist before.
-   The file is created read-write (mask at least 0600 & ~umask), but it may be
-   world-readable and world-writable (mask 0666 & ~umask), depending on the
-   implementation.
-   Returns the open file descriptor if successful, otherwise -1 and errno
-   set.  */
-# if @REPLACE_MKSTEMP@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define mkstemp rpl_mkstemp
-#  endif
-_GL_FUNCDECL_RPL (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (mkstemp, int, (char * /*template*/));
-# else
-#  if ! @HAVE_MKSTEMP@
-_GL_FUNCDECL_SYS (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (mkstemp, int, (char * /*template*/));
-# endif
-_GL_CXXALIASWARN (mkstemp);
-#elif defined GNULIB_POSIXCHECK
-# undef mkstemp
-# if HAVE_RAW_DECL_MKSTEMP
-_GL_WARN_ON_USE (mkstemp, "mkstemp is unportable - "
-                 "use gnulib module mkstemp for portability");
-# endif
-#endif
-
-#if @GNULIB_MKSTEMPS@
-/* Create a unique temporary file from TEMPLATE.
-   The last six characters of TEMPLATE prior to a suffix of length
-   SUFFIXLEN must be "XXXXXX";
-   they are replaced with a string that makes the file name unique.
-   The file is then created, ensuring it didn't exist before.
-   The file is created read-write (mask at least 0600 & ~umask), but it may be
-   world-readable and world-writable (mask 0666 & ~umask), depending on the
-   implementation.
-   Returns the open file descriptor if successful, otherwise -1 and errno
-   set.  */
-# if !@HAVE_MKSTEMPS@
-_GL_FUNCDECL_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/)
-                                 _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/));
-_GL_CXXALIASWARN (mkstemps);
-#elif defined GNULIB_POSIXCHECK
-# undef mkstemps
-# if HAVE_RAW_DECL_MKSTEMPS
-_GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - "
-                 "use gnulib module mkstemps for portability");
-# endif
-#endif
-
-#if @GNULIB_POSIX_OPENPT@
-/* Return an FD open to the master side of a pseudo-terminal.  Flags should
-   include O_RDWR, and may also include O_NOCTTY.  */
-# if !@HAVE_POSIX_OPENPT@
-_GL_FUNCDECL_SYS (posix_openpt, int, (int flags));
-# endif
-_GL_CXXALIAS_SYS (posix_openpt, int, (int flags));
-_GL_CXXALIASWARN (posix_openpt);
-#elif defined GNULIB_POSIXCHECK
-# undef posix_openpt
-# if HAVE_RAW_DECL_POSIX_OPENPT
-_GL_WARN_ON_USE (posix_openpt, "posix_openpt is not portable - "
-                 "use gnulib module posix_openpt for portability");
-# endif
-#endif
-
-#if @GNULIB_PTSNAME@
-/* Return the pathname of the pseudo-terminal slave associated with
-   the master FD is open on, or NULL on errors.  */
-# if @REPLACE_PTSNAME@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef ptsname
-#   define ptsname rpl_ptsname
-#  endif
-_GL_FUNCDECL_RPL (ptsname, char *, (int fd));
-_GL_CXXALIAS_RPL (ptsname, char *, (int fd));
-# else
-#  if !@HAVE_PTSNAME@
-_GL_FUNCDECL_SYS (ptsname, char *, (int fd));
-#  endif
-_GL_CXXALIAS_SYS (ptsname, char *, (int fd));
-# endif
-_GL_CXXALIASWARN (ptsname);
-#elif defined GNULIB_POSIXCHECK
-# undef ptsname
-# if HAVE_RAW_DECL_PTSNAME
-_GL_WARN_ON_USE (ptsname, "ptsname is not portable - "
-                 "use gnulib module ptsname for portability");
-# endif
-#endif
-
-#if @GNULIB_PTSNAME_R@
-/* Set the pathname of the pseudo-terminal slave associated with
-   the master FD is open on and return 0, or set errno and return
-   non-zero on errors.  */
-# if @REPLACE_PTSNAME_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef ptsname_r
-#   define ptsname_r rpl_ptsname_r
-#  endif
-_GL_FUNCDECL_RPL (ptsname_r, int, (int fd, char *buf, size_t len));
-_GL_CXXALIAS_RPL (ptsname_r, int, (int fd, char *buf, size_t len));
-# else
-#  if !@HAVE_PTSNAME_R@
-_GL_FUNCDECL_SYS (ptsname_r, int, (int fd, char *buf, size_t len));
-#  endif
-_GL_CXXALIAS_SYS (ptsname_r, int, (int fd, char *buf, size_t len));
-# endif
-_GL_CXXALIASWARN (ptsname_r);
-#elif defined GNULIB_POSIXCHECK
-# undef ptsname_r
-# if HAVE_RAW_DECL_PTSNAME_R
-_GL_WARN_ON_USE (ptsname_r, "ptsname_r is not portable - "
-                 "use gnulib module ptsname_r for portability");
-# endif
-#endif
-
-#if @GNULIB_PUTENV@
-# if @REPLACE_PUTENV@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef putenv
-#   define putenv rpl_putenv
-#  endif
-_GL_FUNCDECL_RPL (putenv, int, (char *string) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (putenv, int, (char *string));
-# else
-_GL_CXXALIAS_SYS (putenv, int, (char *string));
-# endif
-_GL_CXXALIASWARN (putenv);
-#endif
-
-
-#if @GNULIB_RANDOM_R@
-# if !@HAVE_RANDOM_R@
-#  ifndef RAND_MAX
-#   define RAND_MAX 2147483647
-#  endif
-# endif
-#endif
-
-
-#if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
-_GL_FUNCDECL_SYS (random, long, (void));
-# endif
-_GL_CXXALIAS_SYS (random, long, (void));
-_GL_CXXALIASWARN (random);
-#elif defined GNULIB_POSIXCHECK
-# undef random
-# if HAVE_RAW_DECL_RANDOM
-_GL_WARN_ON_USE (random, "random is unportable - "
-                 "use gnulib module random for portability");
-# endif
-#endif
-
-#if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
-_GL_FUNCDECL_SYS (srandom, void, (unsigned int seed));
-# endif
-_GL_CXXALIAS_SYS (srandom, void, (unsigned int seed));
-_GL_CXXALIASWARN (srandom);
-#elif defined GNULIB_POSIXCHECK
-# undef srandom
-# if HAVE_RAW_DECL_SRANDOM
-_GL_WARN_ON_USE (srandom, "srandom is unportable - "
-                 "use gnulib module random for portability");
-# endif
-#endif
-
-#if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
-_GL_FUNCDECL_SYS (initstate, char *,
-                  (unsigned int seed, char *buf, size_t buf_size)
-                  _GL_ARG_NONNULL ((2)));
-# endif
-_GL_CXXALIAS_SYS (initstate, char *,
-                  (unsigned int seed, char *buf, size_t buf_size));
-_GL_CXXALIASWARN (initstate);
-#elif defined GNULIB_POSIXCHECK
-# undef initstate
-# if HAVE_RAW_DECL_INITSTATE_R
-_GL_WARN_ON_USE (initstate, "initstate is unportable - "
-                 "use gnulib module random for portability");
-# endif
-#endif
-
-#if @GNULIB_RANDOM@
-# if !@HAVE_RANDOM@
-_GL_FUNCDECL_SYS (setstate, char *, (char *arg_state) _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (setstate, char *, (char *arg_state));
-_GL_CXXALIASWARN (setstate);
-#elif defined GNULIB_POSIXCHECK
-# undef setstate
-# if HAVE_RAW_DECL_SETSTATE_R
-_GL_WARN_ON_USE (setstate, "setstate is unportable - "
-                 "use gnulib module random for portability");
-# endif
-#endif
-
-
-#if @GNULIB_RANDOM_R@
-# if @REPLACE_RANDOM_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef random_r
-#   define random_r rpl_random_r
-#  endif
-_GL_FUNCDECL_RPL (random_r, int, (struct random_data *buf, int32_t *result)
-                                 _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (random_r, int, (struct random_data *buf, int32_t *result));
-# else
-#  if !@HAVE_RANDOM_R@
-_GL_FUNCDECL_SYS (random_r, int, (struct random_data *buf, int32_t *result)
-                                 _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (random_r, int, (struct random_data *buf, int32_t *result));
-# endif
-_GL_CXXALIASWARN (random_r);
-#elif defined GNULIB_POSIXCHECK
-# undef random_r
-# if HAVE_RAW_DECL_RANDOM_R
-_GL_WARN_ON_USE (random_r, "random_r is unportable - "
-                 "use gnulib module random_r for portability");
-# endif
-#endif
-
-#if @GNULIB_RANDOM_R@
-# if @REPLACE_RANDOM_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef srandom_r
-#   define srandom_r rpl_srandom_r
-#  endif
-_GL_FUNCDECL_RPL (srandom_r, int,
-                  (unsigned int seed, struct random_data *rand_state)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (srandom_r, int,
-                  (unsigned int seed, struct random_data *rand_state));
-# else
-#  if !@HAVE_RANDOM_R@
-_GL_FUNCDECL_SYS (srandom_r, int,
-                  (unsigned int seed, struct random_data *rand_state)
-                  _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (srandom_r, int,
-                  (unsigned int seed, struct random_data *rand_state));
-# endif
-_GL_CXXALIASWARN (srandom_r);
-#elif defined GNULIB_POSIXCHECK
-# undef srandom_r
-# if HAVE_RAW_DECL_SRANDOM_R
-_GL_WARN_ON_USE (srandom_r, "srandom_r is unportable - "
-                 "use gnulib module random_r for portability");
-# endif
-#endif
-
-#if @GNULIB_RANDOM_R@
-# if @REPLACE_RANDOM_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef initstate_r
-#   define initstate_r rpl_initstate_r
-#  endif
-_GL_FUNCDECL_RPL (initstate_r, int,
-                  (unsigned int seed, char *buf, size_t buf_size,
-                   struct random_data *rand_state)
-                  _GL_ARG_NONNULL ((2, 4)));
-_GL_CXXALIAS_RPL (initstate_r, int,
-                  (unsigned int seed, char *buf, size_t buf_size,
-                   struct random_data *rand_state));
-# else
-#  if !@HAVE_RANDOM_R@
-_GL_FUNCDECL_SYS (initstate_r, int,
-                  (unsigned int seed, char *buf, size_t buf_size,
-                   struct random_data *rand_state)
-                  _GL_ARG_NONNULL ((2, 4)));
-#  endif
-_GL_CXXALIAS_SYS (initstate_r, int,
-                  (unsigned int seed, char *buf, size_t buf_size,
-                   struct random_data *rand_state));
-# endif
-_GL_CXXALIASWARN (initstate_r);
-#elif defined GNULIB_POSIXCHECK
-# undef initstate_r
-# if HAVE_RAW_DECL_INITSTATE_R
-_GL_WARN_ON_USE (initstate_r, "initstate_r is unportable - "
-                 "use gnulib module random_r for portability");
-# endif
-#endif
-
-#if @GNULIB_RANDOM_R@
-# if @REPLACE_RANDOM_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef setstate_r
-#   define setstate_r rpl_setstate_r
-#  endif
-_GL_FUNCDECL_RPL (setstate_r, int,
-                  (char *arg_state, struct random_data *rand_state)
-                  _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (setstate_r, int,
-                  (char *arg_state, struct random_data *rand_state));
-# else
-#  if !@HAVE_RANDOM_R@
-_GL_FUNCDECL_SYS (setstate_r, int,
-                  (char *arg_state, struct random_data *rand_state)
-                  _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (setstate_r, int,
-                  (char *arg_state, struct random_data *rand_state));
-# endif
-_GL_CXXALIASWARN (setstate_r);
-#elif defined GNULIB_POSIXCHECK
-# undef setstate_r
-# if HAVE_RAW_DECL_SETSTATE_R
-_GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
-                 "use gnulib module random_r for portability");
-# endif
-#endif
-
-
-#if @GNULIB_REALLOC_POSIX@
-# if @REPLACE_REALLOC@
-#  if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
-        || _GL_USE_STDLIB_ALLOC)
-#   undef realloc
-#   define realloc rpl_realloc
-#  endif
-_GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
-_GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
-# else
-_GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
-# endif
-_GL_CXXALIASWARN (realloc);
-#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
-# undef realloc
-/* Assume realloc is always declared.  */
-_GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
-                 "use gnulib module realloc-posix for portability");
-#endif
-
-#if @GNULIB_REALPATH@
-# if @REPLACE_REALPATH@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define realpath rpl_realpath
-#  endif
-_GL_FUNCDECL_RPL (realpath, char *, (const char *name, char *resolved)
-                                    _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (realpath, char *, (const char *name, char *resolved));
-# else
-#  if !@HAVE_REALPATH@
-_GL_FUNCDECL_SYS (realpath, char *, (const char *name, char *resolved)
-                                    _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (realpath, char *, (const char *name, char *resolved));
-# endif
-_GL_CXXALIASWARN (realpath);
-#elif defined GNULIB_POSIXCHECK
-# undef realpath
-# if HAVE_RAW_DECL_REALPATH
-_GL_WARN_ON_USE (realpath, "realpath is unportable - use gnulib module "
-                 "canonicalize or canonicalize-lgpl for portability");
-# endif
-#endif
-
-#if @GNULIB_RPMATCH@
-/* Test a user response to a question.
-   Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear.  */
-# if !@HAVE_RPMATCH@
-_GL_FUNCDECL_SYS (rpmatch, int, (const char *response) _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (rpmatch, int, (const char *response));
-_GL_CXXALIASWARN (rpmatch);
-#elif defined GNULIB_POSIXCHECK
-# undef rpmatch
-# if HAVE_RAW_DECL_RPMATCH
-_GL_WARN_ON_USE (rpmatch, "rpmatch is unportable - "
-                 "use gnulib module rpmatch for portability");
-# endif
-#endif
-
-#if @GNULIB_SECURE_GETENV@
-/* Look up NAME in the environment, returning 0 in insecure situations.  */
-# if !@HAVE_SECURE_GETENV@
-_GL_FUNCDECL_SYS (secure_getenv, char *,
-                  (char const *name) _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (secure_getenv, char *, (char const *name));
-_GL_CXXALIASWARN (secure_getenv);
-#elif defined GNULIB_POSIXCHECK
-# undef secure_getenv
-# if HAVE_RAW_DECL_SECURE_GETENV
-_GL_WARN_ON_USE (secure_getenv, "secure_getenv is unportable - "
-                 "use gnulib module secure_getenv for portability");
-# endif
-#endif
-
-#if @GNULIB_SETENV@
-/* Set NAME to VALUE in the environment.
-   If REPLACE is nonzero, overwrite an existing value.  */
-# if @REPLACE_SETENV@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef setenv
-#   define setenv rpl_setenv
-#  endif
-_GL_FUNCDECL_RPL (setenv, int,
-                  (const char *name, const char *value, int replace)
-                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (setenv, int,
-                  (const char *name, const char *value, int replace));
-# else
-#  if !@HAVE_DECL_SETENV@
-_GL_FUNCDECL_SYS (setenv, int,
-                  (const char *name, const char *value, int replace)
-                  _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (setenv, int,
-                  (const char *name, const char *value, int replace));
-# endif
-# if !(@REPLACE_SETENV@ && !@HAVE_DECL_SETENV@)
-_GL_CXXALIASWARN (setenv);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef setenv
-# if HAVE_RAW_DECL_SETENV
-_GL_WARN_ON_USE (setenv, "setenv is unportable - "
-                 "use gnulib module setenv for portability");
-# endif
-#endif
-
-#if @GNULIB_STRTOD@
- /* Parse a double from STRING, updating ENDP if appropriate.  */
-# if @REPLACE_STRTOD@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define strtod rpl_strtod
-#  endif
-_GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
-                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
-# else
-#  if !@HAVE_STRTOD@
-_GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
-                                  _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
-# endif
-_GL_CXXALIASWARN (strtod);
-#elif defined GNULIB_POSIXCHECK
-# undef strtod
-# if HAVE_RAW_DECL_STRTOD
-_GL_WARN_ON_USE (strtod, "strtod is unportable - "
-                 "use gnulib module strtod for portability");
-# endif
-#endif
-
-#if @GNULIB_STRTOLL@
-/* Parse a signed integer whose textual representation starts at STRING.
-   The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
-   it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
-   "0x").
-   If ENDPTR is not NULL, the address of the first byte after the integer is
-   stored in *ENDPTR.
-   Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
-   to ERANGE.  */
-# if !@HAVE_STRTOLL@
-_GL_FUNCDECL_SYS (strtoll, long long,
-                  (const char *string, char **endptr, int base)
-                  _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (strtoll, long long,
-                  (const char *string, char **endptr, int base));
-_GL_CXXALIASWARN (strtoll);
-#elif defined GNULIB_POSIXCHECK
-# undef strtoll
-# if HAVE_RAW_DECL_STRTOLL
-_GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
-                 "use gnulib module strtoll for portability");
-# endif
-#endif
-
-#if @GNULIB_STRTOULL@
-/* Parse an unsigned integer whose textual representation starts at STRING.
-   The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
-   it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
-   "0x").
-   If ENDPTR is not NULL, the address of the first byte after the integer is
-   stored in *ENDPTR.
-   Upon overflow, the return value is ULLONG_MAX, and errno is set to
-   ERANGE.  */
-# if !@HAVE_STRTOULL@
-_GL_FUNCDECL_SYS (strtoull, unsigned long long,
-                  (const char *string, char **endptr, int base)
-                  _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (strtoull, unsigned long long,
-                  (const char *string, char **endptr, int base));
-_GL_CXXALIASWARN (strtoull);
-#elif defined GNULIB_POSIXCHECK
-# undef strtoull
-# if HAVE_RAW_DECL_STRTOULL
-_GL_WARN_ON_USE (strtoull, "strtoull is unportable - "
-                 "use gnulib module strtoull for portability");
-# endif
-#endif
-
-#if @GNULIB_UNLOCKPT@
-/* Unlock the slave side of the pseudo-terminal whose master side is specified
-   by FD, so that it can be opened.  */
-# if !@HAVE_UNLOCKPT@
-_GL_FUNCDECL_SYS (unlockpt, int, (int fd));
-# endif
-_GL_CXXALIAS_SYS (unlockpt, int, (int fd));
-_GL_CXXALIASWARN (unlockpt);
-#elif defined GNULIB_POSIXCHECK
-# undef unlockpt
-# if HAVE_RAW_DECL_UNLOCKPT
-_GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
-                 "use gnulib module unlockpt for portability");
-# endif
-#endif
-
-#if @GNULIB_UNSETENV@
-/* Remove the variable NAME from the environment.  */
-# if @REPLACE_UNSETENV@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef unsetenv
-#   define unsetenv rpl_unsetenv
-#  endif
-_GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
-# else
-#  if !@HAVE_DECL_UNSETENV@
-_GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
-# endif
-# if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
-_GL_CXXALIASWARN (unsetenv);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef unsetenv
-# if HAVE_RAW_DECL_UNSETENV
-_GL_WARN_ON_USE (unsetenv, "unsetenv is unportable - "
-                 "use gnulib module unsetenv for portability");
-# endif
-#endif
-
-/* Convert a wide character to a multibyte character.  */
-#if @GNULIB_WCTOMB@
-# if @REPLACE_WCTOMB@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef wctomb
-#   define wctomb rpl_wctomb
-#  endif
-_GL_FUNCDECL_RPL (wctomb, int, (char *s, wchar_t wc));
-_GL_CXXALIAS_RPL (wctomb, int, (char *s, wchar_t wc));
-# else
-_GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
-# endif
-_GL_CXXALIASWARN (wctomb);
-#endif
-
-
-#endif /* _@GUARD_PREFIX@_STDLIB_H */
-#endif /* _@GUARD_PREFIX@_STDLIB_H */
-#endif
diff --git a/lib/string.in.h b/lib/string.in.h
deleted file mode 100644
index 90621420..00000000
--- a/lib/string.in.h
+++ /dev/null
@@ -1,1029 +0,0 @@
-/* A GNU-like <string.h>.
-
-   Copyright (C) 1995-1996, 2001-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _@GUARD_PREFIX@_STRING_H
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-/* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT@ @NEXT_STRING_H@
-
-#ifndef _@GUARD_PREFIX@_STRING_H
-#define _@GUARD_PREFIX@_STRING_H
-
-/* NetBSD 5.0 mis-defines NULL.  */
-#include <stddef.h>
-
-/* MirBSD defines mbslen as a macro.  */
-#if @GNULIB_MBSLEN@ && defined __MirBSD__
-# include <wchar.h>
-#endif
-
-/* The __attribute__ feature is available in gcc versions 2.5 and later.
-   The attribute __pure__ was added in gcc 2.96.  */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
-# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
-#else
-# define _GL_ATTRIBUTE_PURE /* empty */
-#endif
-
-/* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>.  */
-/* But in any case avoid namespace pollution on glibc systems.  */
-#if (@GNULIB_STRSIGNAL@ || defined GNULIB_POSIXCHECK) && defined __NetBSD__ \
-    && ! defined __GLIBC__
-# include <unistd.h>
-#endif
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-
-/* The definition of _GL_ARG_NONNULL is copied here.  */
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-
-
-/* Find the index of the least-significant set bit.  */
-#if @GNULIB_FFSL@
-# if !@HAVE_FFSL@
-_GL_FUNCDECL_SYS (ffsl, int, (long int i));
-# endif
-_GL_CXXALIAS_SYS (ffsl, int, (long int i));
-_GL_CXXALIASWARN (ffsl);
-#elif defined GNULIB_POSIXCHECK
-# undef ffsl
-# if HAVE_RAW_DECL_FFSL
-_GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module");
-# endif
-#endif
-
-
-/* Find the index of the least-significant set bit.  */
-#if @GNULIB_FFSLL@
-# if !@HAVE_FFSLL@
-_GL_FUNCDECL_SYS (ffsll, int, (long long int i));
-# endif
-_GL_CXXALIAS_SYS (ffsll, int, (long long int i));
-_GL_CXXALIASWARN (ffsll);
-#elif defined GNULIB_POSIXCHECK
-# undef ffsll
-# if HAVE_RAW_DECL_FFSLL
-_GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module");
-# endif
-#endif
-
-
-/* Return the first instance of C within N bytes of S, or NULL.  */
-#if @GNULIB_MEMCHR@
-# if @REPLACE_MEMCHR@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define memchr rpl_memchr
-#  endif
-_GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n)
-                                  _GL_ATTRIBUTE_PURE
-                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n));
-# else
-#  if ! @HAVE_MEMCHR@
-_GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n)
-                                  _GL_ATTRIBUTE_PURE
-                                  _GL_ARG_NONNULL ((1)));
-#  endif
-  /* On some systems, this function is defined as an overloaded function:
-       extern "C" { const void * std::memchr (const void *, int, size_t); }
-       extern "C++" { void * std::memchr (void *, int, size_t); }  */
-_GL_CXXALIAS_SYS_CAST2 (memchr,
-                        void *, (void const *__s, int __c, size_t __n),
-                        void const *, (void const *__s, int __c, size_t __n));
-# endif
-# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
-     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-_GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n));
-_GL_CXXALIASWARN1 (memchr, void const *,
-                   (void const *__s, int __c, size_t __n));
-# else
-_GL_CXXALIASWARN (memchr);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef memchr
-/* Assume memchr is always declared.  */
-_GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - "
-                 "use gnulib module memchr for portability" );
-#endif
-
-/* Return the first occurrence of NEEDLE in HAYSTACK.  */
-#if @GNULIB_MEMMEM@
-# if @REPLACE_MEMMEM@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define memmem rpl_memmem
-#  endif
-_GL_FUNCDECL_RPL (memmem, void *,
-                  (void const *__haystack, size_t __haystack_len,
-                   void const *__needle, size_t __needle_len)
-                  _GL_ATTRIBUTE_PURE
-                  _GL_ARG_NONNULL ((1, 3)));
-_GL_CXXALIAS_RPL (memmem, void *,
-                  (void const *__haystack, size_t __haystack_len,
-                   void const *__needle, size_t __needle_len));
-# else
-#  if ! @HAVE_DECL_MEMMEM@
-_GL_FUNCDECL_SYS (memmem, void *,
-                  (void const *__haystack, size_t __haystack_len,
-                   void const *__needle, size_t __needle_len)
-                  _GL_ATTRIBUTE_PURE
-                  _GL_ARG_NONNULL ((1, 3)));
-#  endif
-_GL_CXXALIAS_SYS (memmem, void *,
-                  (void const *__haystack, size_t __haystack_len,
-                   void const *__needle, size_t __needle_len));
-# endif
-_GL_CXXALIASWARN (memmem);
-#elif defined GNULIB_POSIXCHECK
-# undef memmem
-# if HAVE_RAW_DECL_MEMMEM
-_GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - "
-                 "use gnulib module memmem-simple for portability, "
-                 "and module memmem for speed" );
-# endif
-#endif
-
-/* Copy N bytes of SRC to DEST, return pointer to bytes after the
-   last written byte.  */
-#if @GNULIB_MEMPCPY@
-# if ! @HAVE_MEMPCPY@
-_GL_FUNCDECL_SYS (mempcpy, void *,
-                  (void *restrict __dest, void const *restrict __src,
-                   size_t __n)
-                  _GL_ARG_NONNULL ((1, 2)));
-# endif
-_GL_CXXALIAS_SYS (mempcpy, void *,
-                  (void *restrict __dest, void const *restrict __src,
-                   size_t __n));
-_GL_CXXALIASWARN (mempcpy);
-#elif defined GNULIB_POSIXCHECK
-# undef mempcpy
-# if HAVE_RAW_DECL_MEMPCPY
-_GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - "
-                 "use gnulib module mempcpy for portability");
-# endif
-#endif
-
-/* Search backwards through a block for a byte (specified as an int).  */
-#if @GNULIB_MEMRCHR@
-# if ! @HAVE_DECL_MEMRCHR@
-_GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1)));
-# endif
-  /* On some systems, this function is defined as an overloaded function:
-       extern "C++" { const void * std::memrchr (const void *, int, size_t); }
-       extern "C++" { void * std::memrchr (void *, int, size_t); }  */
-_GL_CXXALIAS_SYS_CAST2 (memrchr,
-                        void *, (void const *, int, size_t),
-                        void const *, (void const *, int, size_t));
-# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
-     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-_GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t));
-_GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t));
-# else
-_GL_CXXALIASWARN (memrchr);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef memrchr
-# if HAVE_RAW_DECL_MEMRCHR
-_GL_WARN_ON_USE (memrchr, "memrchr is unportable - "
-                 "use gnulib module memrchr for portability");
-# endif
-#endif
-
-/* Find the first occurrence of C in S.  More efficient than
-   memchr(S,C,N), at the expense of undefined behavior if C does not
-   occur within N bytes.  */
-#if @GNULIB_RAWMEMCHR@
-# if ! @HAVE_RAWMEMCHR@
-_GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in)
-                                     _GL_ATTRIBUTE_PURE
-                                     _GL_ARG_NONNULL ((1)));
-# endif
-  /* On some systems, this function is defined as an overloaded function:
-       extern "C++" { const void * std::rawmemchr (const void *, int); }
-       extern "C++" { void * std::rawmemchr (void *, int); }  */
-_GL_CXXALIAS_SYS_CAST2 (rawmemchr,
-                        void *, (void const *__s, int __c_in),
-                        void const *, (void const *__s, int __c_in));
-# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
-     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-_GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in));
-_GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in));
-# else
-_GL_CXXALIASWARN (rawmemchr);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef rawmemchr
-# if HAVE_RAW_DECL_RAWMEMCHR
-_GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - "
-                 "use gnulib module rawmemchr for portability");
-# endif
-#endif
-
-/* Copy SRC to DST, returning the address of the terminating '\0' in DST.  */
-#if @GNULIB_STPCPY@
-# if ! @HAVE_STPCPY@
-_GL_FUNCDECL_SYS (stpcpy, char *,
-                  (char *restrict __dst, char const *restrict __src)
-                  _GL_ARG_NONNULL ((1, 2)));
-# endif
-_GL_CXXALIAS_SYS (stpcpy, char *,
-                  (char *restrict __dst, char const *restrict __src));
-_GL_CXXALIASWARN (stpcpy);
-#elif defined GNULIB_POSIXCHECK
-# undef stpcpy
-# if HAVE_RAW_DECL_STPCPY
-_GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - "
-                 "use gnulib module stpcpy for portability");
-# endif
-#endif
-
-/* Copy no more than N bytes of SRC to DST, returning a pointer past the
-   last non-NUL byte written into DST.  */
-#if @GNULIB_STPNCPY@
-# if @REPLACE_STPNCPY@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef stpncpy
-#   define stpncpy rpl_stpncpy
-#  endif
-_GL_FUNCDECL_RPL (stpncpy, char *,
-                  (char *restrict __dst, char const *restrict __src,
-                   size_t __n)
-                  _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (stpncpy, char *,
-                  (char *restrict __dst, char const *restrict __src,
-                   size_t __n));
-# else
-#  if ! @HAVE_STPNCPY@
-_GL_FUNCDECL_SYS (stpncpy, char *,
-                  (char *restrict __dst, char const *restrict __src,
-                   size_t __n)
-                  _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (stpncpy, char *,
-                  (char *restrict __dst, char const *restrict __src,
-                   size_t __n));
-# endif
-_GL_CXXALIASWARN (stpncpy);
-#elif defined GNULIB_POSIXCHECK
-# undef stpncpy
-# if HAVE_RAW_DECL_STPNCPY
-_GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - "
-                 "use gnulib module stpncpy for portability");
-# endif
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strchr() does not work with multibyte strings if the locale encoding is
-   GB18030 and the character to be searched is a digit.  */
-# undef strchr
-/* Assume strchr is always declared.  */
-_GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings "
-                 "in some multibyte locales - "
-                 "use mbschr if you care about internationalization");
-#endif
-
-/* Find the first occurrence of C in S or the final NUL byte.  */
-#if @GNULIB_STRCHRNUL@
-# if @REPLACE_STRCHRNUL@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define strchrnul rpl_strchrnul
-#  endif
-_GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in)
-                                     _GL_ATTRIBUTE_PURE
-                                     _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (strchrnul, char *,
-                  (const char *str, int ch));
-# else
-#  if ! @HAVE_STRCHRNUL@
-_GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in)
-                                     _GL_ATTRIBUTE_PURE
-                                     _GL_ARG_NONNULL ((1)));
-#  endif
-  /* On some systems, this function is defined as an overloaded function:
-       extern "C++" { const char * std::strchrnul (const char *, int); }
-       extern "C++" { char * std::strchrnul (char *, int); }  */
-_GL_CXXALIAS_SYS_CAST2 (strchrnul,
-                        char *, (char const *__s, int __c_in),
-                        char const *, (char const *__s, int __c_in));
-# endif
-# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
-     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-_GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in));
-_GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in));
-# else
-_GL_CXXALIASWARN (strchrnul);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strchrnul
-# if HAVE_RAW_DECL_STRCHRNUL
-_GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - "
-                 "use gnulib module strchrnul for portability");
-# endif
-#endif
-
-/* Duplicate S, returning an identical malloc'd string.  */
-#if @GNULIB_STRDUP@
-# if @REPLACE_STRDUP@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef strdup
-#   define strdup rpl_strdup
-#  endif
-_GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (strdup, char *, (char const *__s));
-# else
-#  if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup
-    /* strdup exists as a function and as a macro.  Get rid of the macro.  */
-#   undef strdup
-#  endif
-#  if !(@HAVE_DECL_STRDUP@ || defined strdup)
-_GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (strdup, char *, (char const *__s));
-# endif
-_GL_CXXALIASWARN (strdup);
-#elif defined GNULIB_POSIXCHECK
-# undef strdup
-# if HAVE_RAW_DECL_STRDUP
-_GL_WARN_ON_USE (strdup, "strdup is unportable - "
-                 "use gnulib module strdup for portability");
-# endif
-#endif
-
-/* Append no more than N characters from SRC onto DEST.  */
-#if @GNULIB_STRNCAT@
-# if @REPLACE_STRNCAT@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef strncat
-#   define strncat rpl_strncat
-#  endif
-_GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n)
-                                   _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n));
-# else
-_GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n));
-# endif
-_GL_CXXALIASWARN (strncat);
-#elif defined GNULIB_POSIXCHECK
-# undef strncat
-# if HAVE_RAW_DECL_STRNCAT
-_GL_WARN_ON_USE (strncat, "strncat is unportable - "
-                 "use gnulib module strncat for portability");
-# endif
-#endif
-
-/* Return a newly allocated copy of at most N bytes of STRING.  */
-#if @GNULIB_STRNDUP@
-# if @REPLACE_STRNDUP@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef strndup
-#   define strndup rpl_strndup
-#  endif
-_GL_FUNCDECL_RPL (strndup, char *, (char const *__string, size_t __n)
-                                   _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (strndup, char *, (char const *__string, size_t __n));
-# else
-#  if ! @HAVE_DECL_STRNDUP@
-_GL_FUNCDECL_SYS (strndup, char *, (char const *__string, size_t __n)
-                                   _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (strndup, char *, (char const *__string, size_t __n));
-# endif
-_GL_CXXALIASWARN (strndup);
-#elif defined GNULIB_POSIXCHECK
-# undef strndup
-# if HAVE_RAW_DECL_STRNDUP
-_GL_WARN_ON_USE (strndup, "strndup is unportable - "
-                 "use gnulib module strndup for portability");
-# endif
-#endif
-
-/* Find the length (number of bytes) of STRING, but scan at most
-   MAXLEN bytes.  If no '\0' terminator is found in that many bytes,
-   return MAXLEN.  */
-#if @GNULIB_STRNLEN@
-# if @REPLACE_STRNLEN@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef strnlen
-#   define strnlen rpl_strnlen
-#  endif
-_GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (strnlen, size_t, (char const *__string, size_t __maxlen));
-# else
-#  if ! @HAVE_DECL_STRNLEN@
-_GL_FUNCDECL_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, size_t __maxlen));
-# endif
-_GL_CXXALIASWARN (strnlen);
-#elif defined GNULIB_POSIXCHECK
-# undef strnlen
-# if HAVE_RAW_DECL_STRNLEN
-_GL_WARN_ON_USE (strnlen, "strnlen is unportable - "
-                 "use gnulib module strnlen for portability");
-# endif
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strcspn() assumes the second argument is a list of single-byte characters.
-   Even in this simple case, it does not work with multibyte strings if the
-   locale encoding is GB18030 and one of the characters to be searched is a
-   digit.  */
-# undef strcspn
-/* Assume strcspn is always declared.  */
-_GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings "
-                 "in multibyte locales - "
-                 "use mbscspn if you care about internationalization");
-#endif
-
-/* Find the first occurrence in S of any character in ACCEPT.  */
-#if @GNULIB_STRPBRK@
-# if ! @HAVE_STRPBRK@
-_GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1, 2)));
-# endif
-  /* On some systems, this function is defined as an overloaded function:
-       extern "C" { const char * strpbrk (const char *, const char *); }
-       extern "C++" { char * strpbrk (char *, const char *); }  */
-_GL_CXXALIAS_SYS_CAST2 (strpbrk,
-                        char *, (char const *__s, char const *__accept),
-                        const char *, (char const *__s, char const *__accept));
-# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
-     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-_GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept));
-_GL_CXXALIASWARN1 (strpbrk, char const *,
-                   (char const *__s, char const *__accept));
-# else
-_GL_CXXALIASWARN (strpbrk);
-# endif
-# if defined GNULIB_POSIXCHECK
-/* strpbrk() assumes the second argument is a list of single-byte characters.
-   Even in this simple case, it does not work with multibyte strings if the
-   locale encoding is GB18030 and one of the characters to be searched is a
-   digit.  */
-#  undef strpbrk
-_GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings "
-                 "in multibyte locales - "
-                 "use mbspbrk if you care about internationalization");
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strpbrk
-# if HAVE_RAW_DECL_STRPBRK
-_GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - "
-                 "use gnulib module strpbrk for portability");
-# endif
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strspn() assumes the second argument is a list of single-byte characters.
-   Even in this simple case, it cannot work with multibyte strings.  */
-# undef strspn
-/* Assume strspn is always declared.  */
-_GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings "
-                 "in multibyte locales - "
-                 "use mbsspn if you care about internationalization");
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strrchr() does not work with multibyte strings if the locale encoding is
-   GB18030 and the character to be searched is a digit.  */
-# undef strrchr
-/* Assume strrchr is always declared.  */
-_GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings "
-                 "in some multibyte locales - "
-                 "use mbsrchr if you care about internationalization");
-#endif
-
-/* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
-   If one is found, overwrite it with a NUL, and advance *STRINGP
-   to point to the next char after it.  Otherwise, set *STRINGP to NULL.
-   If *STRINGP was already NULL, nothing happens.
-   Return the old value of *STRINGP.
-
-   This is a variant of strtok() that is multithread-safe and supports
-   empty fields.
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-   Caveat: It doesn't work with multibyte strings unless all of the delimiter
-           characters are ASCII characters < 0x30.
-
-   See also strtok_r().  */
-#if @GNULIB_STRSEP@
-# if ! @HAVE_STRSEP@
-_GL_FUNCDECL_SYS (strsep, char *,
-                  (char **restrict __stringp, char const *restrict __delim)
-                  _GL_ARG_NONNULL ((1, 2)));
-# endif
-_GL_CXXALIAS_SYS (strsep, char *,
-                  (char **restrict __stringp, char const *restrict __delim));
-_GL_CXXALIASWARN (strsep);
-# if defined GNULIB_POSIXCHECK
-#  undef strsep
-_GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings "
-                 "in multibyte locales - "
-                 "use mbssep if you care about internationalization");
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strsep
-# if HAVE_RAW_DECL_STRSEP
-_GL_WARN_ON_USE (strsep, "strsep is unportable - "
-                 "use gnulib module strsep for portability");
-# endif
-#endif
-
-#if @GNULIB_STRSTR@
-# if @REPLACE_STRSTR@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define strstr rpl_strstr
-#  endif
-_GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle)
-                                  _GL_ATTRIBUTE_PURE
-                                  _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle));
-# else
-  /* On some systems, this function is defined as an overloaded function:
-       extern "C++" { const char * strstr (const char *, const char *); }
-       extern "C++" { char * strstr (char *, const char *); }  */
-_GL_CXXALIAS_SYS_CAST2 (strstr,
-                        char *, (const char *haystack, const char *needle),
-                        const char *, (const char *haystack, const char *needle));
-# endif
-# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
-     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-_GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle));
-_GL_CXXALIASWARN1 (strstr, const char *,
-                   (const char *haystack, const char *needle));
-# else
-_GL_CXXALIASWARN (strstr);
-# endif
-#elif defined GNULIB_POSIXCHECK
-/* strstr() does not work with multibyte strings if the locale encoding is
-   different from UTF-8:
-   POSIX says that it operates on "strings", and "string" in POSIX is defined
-   as a sequence of bytes, not of characters.  */
-# undef strstr
-/* Assume strstr is always declared.  */
-_GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot "
-                 "work correctly on character strings in most "
-                 "multibyte locales - "
-                 "use mbsstr if you care about internationalization, "
-                 "or use strstr if you care about speed");
-#endif
-
-/* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
-   comparison.  */
-#if @GNULIB_STRCASESTR@
-# if @REPLACE_STRCASESTR@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define strcasestr rpl_strcasestr
-#  endif
-_GL_FUNCDECL_RPL (strcasestr, char *,
-                  (const char *haystack, const char *needle)
-                  _GL_ATTRIBUTE_PURE
-                  _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (strcasestr, char *,
-                  (const char *haystack, const char *needle));
-# else
-#  if ! @HAVE_STRCASESTR@
-_GL_FUNCDECL_SYS (strcasestr, char *,
-                  (const char *haystack, const char *needle)
-                  _GL_ATTRIBUTE_PURE
-                  _GL_ARG_NONNULL ((1, 2)));
-#  endif
-  /* On some systems, this function is defined as an overloaded function:
-       extern "C++" { const char * strcasestr (const char *, const char *); }
-       extern "C++" { char * strcasestr (char *, const char *); }  */
-_GL_CXXALIAS_SYS_CAST2 (strcasestr,
-                        char *, (const char *haystack, const char *needle),
-                        const char *, (const char *haystack, const char *needle));
-# endif
-# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \
-     && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
-_GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle));
-_GL_CXXALIASWARN1 (strcasestr, const char *,
-                   (const char *haystack, const char *needle));
-# else
-_GL_CXXALIASWARN (strcasestr);
-# endif
-#elif defined GNULIB_POSIXCHECK
-/* strcasestr() does not work with multibyte strings:
-   It is a glibc extension, and glibc implements it only for unibyte
-   locales.  */
-# undef strcasestr
-# if HAVE_RAW_DECL_STRCASESTR
-_GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character "
-                 "strings in multibyte locales - "
-                 "use mbscasestr if you care about "
-                 "internationalization, or use c-strcasestr if you want "
-                 "a locale independent function");
-# endif
-#endif
-
-/* Parse S into tokens separated by characters in DELIM.
-   If S is NULL, the saved pointer in SAVE_PTR is used as
-   the next starting point.  For example:
-        char s[] = "-abc-=-def";
-        char *sp;
-        x = strtok_r(s, "-", &sp);      // x = "abc", sp = "=-def"
-        x = strtok_r(NULL, "-=", &sp);  // x = "def", sp = NULL
-        x = strtok_r(NULL, "=", &sp);   // x = NULL
-                // s = "abc\0-def\0"
-
-   This is a variant of strtok() that is multithread-safe.
-
-   For the POSIX documentation for this function, see:
-   http://www.opengroup.org/susv3xsh/strtok.html
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-   Caveat: It doesn't work with multibyte strings unless all of the delimiter
-           characters are ASCII characters < 0x30.
-
-   See also strsep().  */
-#if @GNULIB_STRTOK_R@
-# if @REPLACE_STRTOK_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef strtok_r
-#   define strtok_r rpl_strtok_r
-#  endif
-_GL_FUNCDECL_RPL (strtok_r, char *,
-                  (char *restrict s, char const *restrict delim,
-                   char **restrict save_ptr)
-                  _GL_ARG_NONNULL ((2, 3)));
-_GL_CXXALIAS_RPL (strtok_r, char *,
-                  (char *restrict s, char const *restrict delim,
-                   char **restrict save_ptr));
-# else
-#  if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK
-#   undef strtok_r
-#  endif
-#  if ! @HAVE_DECL_STRTOK_R@
-_GL_FUNCDECL_SYS (strtok_r, char *,
-                  (char *restrict s, char const *restrict delim,
-                   char **restrict save_ptr)
-                  _GL_ARG_NONNULL ((2, 3)));
-#  endif
-_GL_CXXALIAS_SYS (strtok_r, char *,
-                  (char *restrict s, char const *restrict delim,
-                   char **restrict save_ptr));
-# endif
-_GL_CXXALIASWARN (strtok_r);
-# if defined GNULIB_POSIXCHECK
-_GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character "
-                 "strings in multibyte locales - "
-                 "use mbstok_r if you care about internationalization");
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strtok_r
-# if HAVE_RAW_DECL_STRTOK_R
-_GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - "
-                 "use gnulib module strtok_r for portability");
-# endif
-#endif
-
-
-/* The following functions are not specified by POSIX.  They are gnulib
-   extensions.  */
-
-#if @GNULIB_MBSLEN@
-/* Return the number of multibyte characters in the character string STRING.
-   This considers multibyte characters, unlike strlen, which counts bytes.  */
-# ifdef __MirBSD__  /* MirBSD defines mbslen as a macro.  Override it.  */
-#  undef mbslen
-# endif
-# if @HAVE_MBSLEN@  /* AIX, OSF/1, MirBSD define mbslen already in libc.  */
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define mbslen rpl_mbslen
-#  endif
-_GL_FUNCDECL_RPL (mbslen, size_t, (const char *string)
-                                  _GL_ATTRIBUTE_PURE
-                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (mbslen, size_t, (const char *string));
-# else
-_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string)
-                                  _GL_ATTRIBUTE_PURE
-                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_SYS (mbslen, size_t, (const char *string));
-# endif
-_GL_CXXALIASWARN (mbslen);
-#endif
-
-#if @GNULIB_MBSNLEN@
-/* Return the number of multibyte characters in the character string starting
-   at STRING and ending at STRING + LEN.  */
-_GL_EXTERN_C size_t mbsnlen (const char *string, size_t len)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1));
-#endif
-
-#if @GNULIB_MBSCHR@
-/* Locate the first single-byte character C in the character string STRING,
-   and return a pointer to it.  Return NULL if C is not found in STRING.
-   Unlike strchr(), this function works correctly in multibyte locales with
-   encodings such as GB18030.  */
-# if defined __hpux
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define mbschr rpl_mbschr /* avoid collision with HP-UX function */
-#  endif
-_GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c)
-                                  _GL_ATTRIBUTE_PURE
-                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c));
-# else
-_GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c)
-                                  _GL_ATTRIBUTE_PURE
-                                  _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c));
-# endif
-_GL_CXXALIASWARN (mbschr);
-#endif
-
-#if @GNULIB_MBSRCHR@
-/* Locate the last single-byte character C in the character string STRING,
-   and return a pointer to it.  Return NULL if C is not found in STRING.
-   Unlike strrchr(), this function works correctly in multibyte locales with
-   encodings such as GB18030.  */
-# if defined __hpux || defined __INTERIX
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define mbsrchr rpl_mbsrchr /* avoid collision with system function */
-#  endif
-_GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c));
-# else
-_GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c));
-# endif
-_GL_CXXALIASWARN (mbsrchr);
-#endif
-
-#if @GNULIB_MBSSTR@
-/* Find the first occurrence of the character string NEEDLE in the character
-   string HAYSTACK.  Return NULL if NEEDLE is not found in HAYSTACK.
-   Unlike strstr(), this function works correctly in multibyte locales with
-   encodings different from UTF-8.  */
-_GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSCASECMP@
-/* Compare the character strings S1 and S2, ignoring case, returning less than,
-   equal to or greater than zero if S1 is lexicographically less than, equal to
-   or greater than S2.
-   Note: This function may, in multibyte locales, return 0 for strings of
-   different lengths!
-   Unlike strcasecmp(), this function works correctly in multibyte locales.  */
-_GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSNCASECMP@
-/* Compare the initial segment of the character string S1 consisting of at most
-   N characters with the initial segment of the character string S2 consisting
-   of at most N characters, ignoring case, returning less than, equal to or
-   greater than zero if the initial segment of S1 is lexicographically less
-   than, equal to or greater than the initial segment of S2.
-   Note: This function may, in multibyte locales, return 0 for initial segments
-   of different lengths!
-   Unlike strncasecmp(), this function works correctly in multibyte locales.
-   But beware that N is not a byte count but a character count!  */
-_GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSPCASECMP@
-/* Compare the initial segment of the character string STRING consisting of
-   at most mbslen (PREFIX) characters with the character string PREFIX,
-   ignoring case.  If the two match, return a pointer to the first byte
-   after this prefix in STRING.  Otherwise, return NULL.
-   Note: This function may, in multibyte locales, return non-NULL if STRING
-   is of smaller length than PREFIX!
-   Unlike strncasecmp(), this function works correctly in multibyte
-   locales.  */
-_GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSCASESTR@
-/* Find the first occurrence of the character string NEEDLE in the character
-   string HAYSTACK, using case-insensitive comparison.
-   Note: This function may, in multibyte locales, return success even if
-   strlen (haystack) < strlen (needle) !
-   Unlike strcasestr(), this function works correctly in multibyte locales.  */
-_GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSCSPN@
-/* Find the first occurrence in the character string STRING of any character
-   in the character string ACCEPT.  Return the number of bytes from the
-   beginning of the string to this occurrence, or to the end of the string
-   if none exists.
-   Unlike strcspn(), this function works correctly in multibyte locales.  */
-_GL_EXTERN_C size_t mbscspn (const char *string, const char *accept)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSPBRK@
-/* Find the first occurrence in the character string STRING of any character
-   in the character string ACCEPT.  Return the pointer to it, or NULL if none
-   exists.
-   Unlike strpbrk(), this function works correctly in multibyte locales.  */
-# if defined __hpux
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
-#  endif
-_GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept));
-# else
-_GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept));
-# endif
-_GL_CXXALIASWARN (mbspbrk);
-#endif
-
-#if @GNULIB_MBSSPN@
-/* Find the first occurrence in the character string STRING of any character
-   not in the character string REJECT.  Return the number of bytes from the
-   beginning of the string to this occurrence, or to the end of the string
-   if none exists.
-   Unlike strspn(), this function works correctly in multibyte locales.  */
-_GL_EXTERN_C size_t mbsspn (const char *string, const char *reject)
-     _GL_ATTRIBUTE_PURE
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSSEP@
-/* Search the next delimiter (multibyte character listed in the character
-   string DELIM) starting at the character string *STRINGP.
-   If one is found, overwrite it with a NUL, and advance *STRINGP to point
-   to the next multibyte character after it.  Otherwise, set *STRINGP to NULL.
-   If *STRINGP was already NULL, nothing happens.
-   Return the old value of *STRINGP.
-
-   This is a variant of mbstok_r() that supports empty fields.
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-
-   See also mbstok_r().  */
-_GL_EXTERN_C char * mbssep (char **stringp, const char *delim)
-     _GL_ARG_NONNULL ((1, 2));
-#endif
-
-#if @GNULIB_MBSTOK_R@
-/* Parse the character string STRING into tokens separated by characters in
-   the character string DELIM.
-   If STRING is NULL, the saved pointer in SAVE_PTR is used as
-   the next starting point.  For example:
-        char s[] = "-abc-=-def";
-        char *sp;
-        x = mbstok_r(s, "-", &sp);      // x = "abc", sp = "=-def"
-        x = mbstok_r(NULL, "-=", &sp);  // x = "def", sp = NULL
-        x = mbstok_r(NULL, "=", &sp);   // x = NULL
-                // s = "abc\0-def\0"
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-
-   See also mbssep().  */
-_GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr)
-     _GL_ARG_NONNULL ((2, 3));
-#endif
-
-/* Map any int, typically from errno, into an error message.  */
-#if @GNULIB_STRERROR@
-# if @REPLACE_STRERROR@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef strerror
-#   define strerror rpl_strerror
-#  endif
-_GL_FUNCDECL_RPL (strerror, char *, (int));
-_GL_CXXALIAS_RPL (strerror, char *, (int));
-# else
-_GL_CXXALIAS_SYS (strerror, char *, (int));
-# endif
-_GL_CXXALIASWARN (strerror);
-#elif defined GNULIB_POSIXCHECK
-# undef strerror
-/* Assume strerror is always declared.  */
-_GL_WARN_ON_USE (strerror, "strerror is unportable - "
-                 "use gnulib module strerror to guarantee non-NULL result");
-#endif
-
-/* Map any int, typically from errno, into an error message.  Multithread-safe.
-   Uses the POSIX declaration, not the glibc declaration.  */
-#if @GNULIB_STRERROR_R@
-# if @REPLACE_STRERROR_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef strerror_r
-#   define strerror_r rpl_strerror_r
-#  endif
-_GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)
-                                   _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen));
-# else
-#  if !@HAVE_DECL_STRERROR_R@
-_GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)
-                                   _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen));
-# endif
-# if @HAVE_DECL_STRERROR_R@
-_GL_CXXALIASWARN (strerror_r);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strerror_r
-# if HAVE_RAW_DECL_STRERROR_R
-_GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - "
-                 "use gnulib module strerror_r-posix for portability");
-# endif
-#endif
-
-#if @GNULIB_STRSIGNAL@
-# if @REPLACE_STRSIGNAL@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define strsignal rpl_strsignal
-#  endif
-_GL_FUNCDECL_RPL (strsignal, char *, (int __sig));
-_GL_CXXALIAS_RPL (strsignal, char *, (int __sig));
-# else
-#  if ! @HAVE_DECL_STRSIGNAL@
-_GL_FUNCDECL_SYS (strsignal, char *, (int __sig));
-#  endif
-/* Need to cast, because on Cygwin 1.5.x systems, the return type is
-   'const char *'.  */
-_GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig));
-# endif
-_GL_CXXALIASWARN (strsignal);
-#elif defined GNULIB_POSIXCHECK
-# undef strsignal
-# if HAVE_RAW_DECL_STRSIGNAL
-_GL_WARN_ON_USE (strsignal, "strsignal is unportable - "
-                 "use gnulib module strsignal for portability");
-# endif
-#endif
-
-#if @GNULIB_STRVERSCMP@
-# if !@HAVE_STRVERSCMP@
-_GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *)
-                                   _GL_ATTRIBUTE_PURE
-                                   _GL_ARG_NONNULL ((1, 2)));
-# endif
-_GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *));
-_GL_CXXALIASWARN (strverscmp);
-#elif defined GNULIB_POSIXCHECK
-# undef strverscmp
-# if HAVE_RAW_DECL_STRVERSCMP
-_GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - "
-                 "use gnulib module strverscmp for portability");
-# endif
-#endif
-
-
-#endif /* _@GUARD_PREFIX@_STRING_H */
-#endif /* _@GUARD_PREFIX@_STRING_H */
diff --git a/lib/strndup.c b/lib/strndup.c
deleted file mode 100644
index cc1a4843..00000000
--- a/lib/strndup.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/* A replacement function, for systems that lack strndup.
-
-   Copyright (C) 1996-1998, 2001-2003, 2005-2007, 2009-2014 Free Software
-   Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU General Public License as published by the
-   Free Software Foundation; either version 3, or (at your option) any
-   later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-#include <string.h>
-
-#include <stdlib.h>
-
-char *
-strndup (char const *s, size_t n)
-{
-  size_t len = strnlen (s, n);
-  char *new = malloc (len + 1);
-
-  if (new == NULL)
-    return NULL;
-
-  new[len] = '\0';
-  return memcpy (new, s, len);
-}
diff --git a/lib/strnlen.c b/lib/strnlen.c
deleted file mode 100644
index ddccebc6..00000000
--- a/lib/strnlen.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/* Find the length of STRING, but scan at most MAXLEN characters.
-   Copyright (C) 2005-2007, 2009-2014 Free Software Foundation, Inc.
-   Written by Simon Josefsson.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#include <config.h>
-
-#include <string.h>
-
-/* Find the length of STRING, but scan at most MAXLEN characters.
-   If no '\0' terminator is found in that many characters, return MAXLEN.  */
-
-size_t
-strnlen (const char *string, size_t maxlen)
-{
-  const char *end = memchr (string, '\0', maxlen);
-  return end ? (size_t) (end - string) : maxlen;
-}
diff --git a/lib/sys_ioctl.in.h b/lib/sys_ioctl.in.h
deleted file mode 100644
index c13e3172..00000000
--- a/lib/sys_ioctl.in.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/* Substitute for and wrapper around <sys/ioctl.h>.
-   Copyright (C) 2008-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _@GUARD_PREFIX@_SYS_IOCTL_H
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-/* The include_next requires a split double-inclusion guard.  */
-#if @HAVE_SYS_IOCTL_H@
-# @INCLUDE_NEXT@ @NEXT_SYS_IOCTL_H@
-#endif
-
-#ifndef _@GUARD_PREFIX@_SYS_IOCTL_H
-#define _@GUARD_PREFIX@_SYS_IOCTL_H
-
-/* AIX 5.1 and Solaris 10 declare ioctl() in <unistd.h> and in <stropts.h>,
-   but not in <sys/ioctl.h>.
-   But avoid namespace pollution on glibc systems.  */
-#ifndef __GLIBC__
-# include <unistd.h>
-#endif
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-
-
-/* Declare overridden functions.  */
-
-#if @GNULIB_IOCTL@
-# if @REPLACE_IOCTL@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef ioctl
-#   define ioctl rpl_ioctl
-#  endif
-_GL_FUNCDECL_RPL (ioctl, int,
-                  (int fd, int request, ... /* {void *,char *} arg */));
-_GL_CXXALIAS_RPL (ioctl, int,
-                  (int fd, int request, ... /* {void *,char *} arg */));
-# else
-#  if @SYS_IOCTL_H_HAVE_WINSOCK2_H@ || 1
-_GL_FUNCDECL_SYS (ioctl, int,
-                  (int fd, int request, ... /* {void *,char *} arg */));
-#  endif
-_GL_CXXALIAS_SYS (ioctl, int,
-                  (int fd, int request, ... /* {void *,char *} arg */));
-# endif
-_GL_CXXALIASWARN (ioctl);
-#elif @SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
-# undef ioctl
-# define ioctl ioctl_used_without_requesting_gnulib_module_ioctl
-#elif defined GNULIB_POSIXCHECK
-# undef ioctl
-# if HAVE_RAW_DECL_IOCTL
-_GL_WARN_ON_USE (ioctl, "ioctl does not portably work on sockets - "
-                 "use gnulib module ioctl for portability");
-# endif
-#endif
-
-
-#endif /* _@GUARD_PREFIX@_SYS_IOCTL_H */
-#endif /* _@GUARD_PREFIX@_SYS_IOCTL_H */
diff --git a/lib/sys_socket.c b/lib/sys_socket.c
deleted file mode 100644
index 3f017f8f..00000000
--- a/lib/sys_socket.c
+++ /dev/null
@@ -1,3 +0,0 @@
-#include <config.h>
-#define _GL_SYS_SOCKET_INLINE _GL_EXTERN_INLINE
-#include "sys/socket.h"
diff --git a/lib/sys_socket.in.h b/lib/sys_socket.in.h
deleted file mode 100644
index 3cdc0d11..00000000
--- a/lib/sys_socket.in.h
+++ /dev/null
@@ -1,692 +0,0 @@
-/* Provide a sys/socket header file for systems lacking it (read: MinGW)
-   and for systems where it is incomplete.
-   Copyright (C) 2005-2014 Free Software Foundation, Inc.
-   Written by Simon Josefsson.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-/* This file is supposed to be used on platforms that lack <sys/socket.h>,
-   on platforms where <sys/socket.h> cannot be included standalone, and on
-   platforms where <sys/socket.h> does not provide all necessary definitions.
-   It is intended to provide definitions and prototypes needed by an
-   application.  */
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-#if defined _GL_ALREADY_INCLUDING_SYS_SOCKET_H
-/* Special invocation convention:
-   - On Cygwin 1.5.x we have a sequence of nested includes
-     <sys/socket.h> -> <cygwin/socket.h> -> <asm/socket.h> -> <cygwin/if.h>,
-     and the latter includes <sys/socket.h>.  In this situation, the functions
-     are not yet declared, therefore we cannot provide the C++ aliases.  */
-
-#@INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@
-
-#else
-/* Normal invocation convention.  */
-
-#ifndef _@GUARD_PREFIX@_SYS_SOCKET_H
-
-#if @HAVE_SYS_SOCKET_H@
-
-# define _GL_ALREADY_INCLUDING_SYS_SOCKET_H
-
-/* On many platforms, <sys/socket.h> assumes prior inclusion of
-   <sys/types.h>.  */
-# include <sys/types.h>
-
-/* On FreeBSD 6.4, <sys/socket.h> defines some macros that assume that NULL
-   is defined.  */
-# include <stddef.h>
-
-/* The include_next requires a split double-inclusion guard.  */
-# @INCLUDE_NEXT@ @NEXT_SYS_SOCKET_H@
-
-# undef _GL_ALREADY_INCLUDING_SYS_SOCKET_H
-
-#endif
-
-#ifndef _@GUARD_PREFIX@_SYS_SOCKET_H
-#define _@GUARD_PREFIX@_SYS_SOCKET_H
-
-#ifndef _GL_INLINE_HEADER_BEGIN
- #error "Please include config.h first."
-#endif
-_GL_INLINE_HEADER_BEGIN
-#ifndef _GL_SYS_SOCKET_INLINE
-# define _GL_SYS_SOCKET_INLINE _GL_INLINE
-#endif
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-
-/* The definition of _GL_ARG_NONNULL is copied here.  */
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-
-#if !@HAVE_SA_FAMILY_T@
-# if !GNULIB_defined_sa_family_t
-typedef unsigned short  sa_family_t;
-#  define GNULIB_defined_sa_family_t 1
-# endif
-#endif
-
-#if @HAVE_STRUCT_SOCKADDR_STORAGE@
-/* Make the 'struct sockaddr_storage' field 'ss_family' visible on AIX 7.1.  */
-# if !@HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY@
-#  ifndef ss_family
-#   define ss_family __ss_family
-#  endif
-# endif
-#else
-# include <stdalign.h>
-/* Code taken from glibc sysdeps/unix/sysv/linux/bits/socket.h on
-   2009-05-08, licensed under LGPLv2.1+, plus portability fixes. */
-# define __ss_aligntype unsigned long int
-# define _SS_SIZE 256
-# define _SS_PADSIZE \
-    (_SS_SIZE - ((sizeof (sa_family_t) >= alignof (__ss_aligntype)      \
-                  ? sizeof (sa_family_t)                                \
-                  : alignof (__ss_aligntype))                           \
-                 + sizeof (__ss_aligntype)))
-
-# if !GNULIB_defined_struct_sockaddr_storage
-struct sockaddr_storage
-{
-  sa_family_t ss_family;      /* Address family, etc.  */
-  __ss_aligntype __ss_align;  /* Force desired alignment.  */
-  char __ss_padding[_SS_PADSIZE];
-};
-#  define GNULIB_defined_struct_sockaddr_storage 1
-# endif
-
-#endif
-
-/* Get struct iovec.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if ! defined __GLIBC__
-# include <sys/uio.h>
-#endif
-
-#if @HAVE_SYS_SOCKET_H@
-
-/* A platform that has <sys/socket.h>.  */
-
-/* For shutdown().  */
-# if !defined SHUT_RD
-#  define SHUT_RD 0
-# endif
-# if !defined SHUT_WR
-#  define SHUT_WR 1
-# endif
-# if !defined SHUT_RDWR
-#  define SHUT_RDWR 2
-# endif
-
-#else
-
-# ifdef __CYGWIN__
-#  error "Cygwin does have a sys/socket.h, doesn't it?!?"
-# endif
-
-/* A platform that lacks <sys/socket.h>.
-
-   Currently only MinGW is supported.  See the gnulib manual regarding
-   Windows sockets.  MinGW has the header files winsock2.h and
-   ws2tcpip.h that declare the sys/socket.h definitions we need.  Note
-   that you can influence which definitions you get by setting the
-   WINVER symbol before including these two files.  For example,
-   getaddrinfo is only available if _WIN32_WINNT >= 0x0501 (that
-   symbol is set indirectly through WINVER).  You can set this by
-   adding AC_DEFINE(WINVER, 0x0501) to configure.ac.  Note that your
-   code may not run on older Windows releases then.  My Windows 2000
-   box was not able to run the code, for example.  The situation is
-   slightly confusing because
-   <http://msdn.microsoft.com/en-us/library/ms738520>
-   suggests that getaddrinfo should be available on all Windows
-   releases. */
-
-# if @HAVE_WINSOCK2_H@
-#  include <winsock2.h>
-# endif
-# if @HAVE_WS2TCPIP_H@
-#  include <ws2tcpip.h>
-# endif
-
-/* For shutdown(). */
-# if !defined SHUT_RD && defined SD_RECEIVE
-#  define SHUT_RD SD_RECEIVE
-# endif
-# if !defined SHUT_WR && defined SD_SEND
-#  define SHUT_WR SD_SEND
-# endif
-# if !defined SHUT_RDWR && defined SD_BOTH
-#  define SHUT_RDWR SD_BOTH
-# endif
-
-# if @HAVE_WINSOCK2_H@
-/* Include headers needed by the emulation code.  */
-#  include <sys/types.h>
-#  include <io.h>
-
-#  if !GNULIB_defined_socklen_t
-typedef int socklen_t;
-#   define GNULIB_defined_socklen_t 1
-#  endif
-
-# endif
-
-/* Rudimentary 'struct msghdr'; this works as long as you don't try to
-   access msg_control or msg_controllen.  */
-struct msghdr {
-  void *msg_name;
-  socklen_t msg_namelen;
-  struct iovec *msg_iov;
-  int msg_iovlen;
-  int msg_flags;
-};
-
-#endif
-
-/* Fix some definitions from <winsock2.h>.  */
-
-#if @HAVE_WINSOCK2_H@
-
-# if !GNULIB_defined_rpl_fd_isset
-
-/* Re-define FD_ISSET to avoid a WSA call while we are not using
-   network sockets.  */
-_GL_SYS_SOCKET_INLINE int
-rpl_fd_isset (SOCKET fd, fd_set * set)
-{
-  u_int i;
-  if (set == NULL)
-    return 0;
-
-  for (i = 0; i < set->fd_count; i++)
-    if (set->fd_array[i] == fd)
-      return 1;
-
-  return 0;
-}
-
-#  define GNULIB_defined_rpl_fd_isset 1
-# endif
-
-# undef FD_ISSET
-# define FD_ISSET(fd, set) rpl_fd_isset(fd, set)
-
-#endif
-
-/* Hide some function declarations from <winsock2.h>.  */
-
-#if @HAVE_WINSOCK2_H@
-# if !defined _@GUARD_PREFIX@_UNISTD_H
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef close
-#   define close close_used_without_including_unistd_h
-#  else
-    _GL_WARN_ON_USE (close,
-                     "close() used without including <unistd.h>");
-#  endif
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef gethostname
-#   define gethostname gethostname_used_without_including_unistd_h
-#  else
-    _GL_WARN_ON_USE (gethostname,
-                     "gethostname() used without including <unistd.h>");
-#  endif
-# endif
-# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef select
-#   define select select_used_without_including_sys_select_h
-#  else
-    _GL_WARN_ON_USE (select,
-                     "select() used without including <sys/select.h>");
-#  endif
-# endif
-#endif
-
-/* Wrap everything else to use libc file descriptors for sockets.  */
-
-#if @GNULIB_SOCKET@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef socket
-#   define socket rpl_socket
-#  endif
-_GL_FUNCDECL_RPL (socket, int, (int domain, int type, int protocol));
-_GL_CXXALIAS_RPL (socket, int, (int domain, int type, int protocol));
-# else
-_GL_CXXALIAS_SYS (socket, int, (int domain, int type, int protocol));
-# endif
-_GL_CXXALIASWARN (socket);
-#elif @HAVE_WINSOCK2_H@
-# undef socket
-# define socket socket_used_without_requesting_gnulib_module_socket
-#elif defined GNULIB_POSIXCHECK
-# undef socket
-# if HAVE_RAW_DECL_SOCKET
-_GL_WARN_ON_USE (socket, "socket is not always POSIX compliant - "
-                 "use gnulib module socket for portability");
-# endif
-#endif
-
-#if @GNULIB_CONNECT@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef connect
-#   define connect rpl_connect
-#  endif
-_GL_FUNCDECL_RPL (connect, int,
-                  (int fd, const struct sockaddr *addr, socklen_t addrlen)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (connect, int,
-                  (int fd, const struct sockaddr *addr, socklen_t addrlen));
-# else
-/* Need to cast, because on NonStop Kernel, the third parameter is
-                                                     size_t addrlen.  */
-_GL_CXXALIAS_SYS_CAST (connect, int,
-                       (int fd,
-                        const struct sockaddr *addr, socklen_t addrlen));
-# endif
-_GL_CXXALIASWARN (connect);
-#elif @HAVE_WINSOCK2_H@
-# undef connect
-# define connect socket_used_without_requesting_gnulib_module_connect
-#elif defined GNULIB_POSIXCHECK
-# undef connect
-# if HAVE_RAW_DECL_CONNECT
-_GL_WARN_ON_USE (connect, "connect is not always POSIX compliant - "
-                 "use gnulib module connect for portability");
-# endif
-#endif
-
-#if @GNULIB_ACCEPT@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef accept
-#   define accept rpl_accept
-#  endif
-_GL_FUNCDECL_RPL (accept, int,
-                  (int fd, struct sockaddr *addr, socklen_t *addrlen));
-_GL_CXXALIAS_RPL (accept, int,
-                  (int fd, struct sockaddr *addr, socklen_t *addrlen));
-# else
-/* Need to cast, because on Solaris 10 systems, the third parameter is
-                                                       void *addrlen.  */
-_GL_CXXALIAS_SYS_CAST (accept, int,
-                       (int fd, struct sockaddr *addr, socklen_t *addrlen));
-# endif
-_GL_CXXALIASWARN (accept);
-#elif @HAVE_WINSOCK2_H@
-# undef accept
-# define accept accept_used_without_requesting_gnulib_module_accept
-#elif defined GNULIB_POSIXCHECK
-# undef accept
-# if HAVE_RAW_DECL_ACCEPT
-_GL_WARN_ON_USE (accept, "accept is not always POSIX compliant - "
-                 "use gnulib module accept for portability");
-# endif
-#endif
-
-#if @GNULIB_BIND@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef bind
-#   define bind rpl_bind
-#  endif
-_GL_FUNCDECL_RPL (bind, int,
-                  (int fd, const struct sockaddr *addr, socklen_t addrlen)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (bind, int,
-                  (int fd, const struct sockaddr *addr, socklen_t addrlen));
-# else
-/* Need to cast, because on NonStop Kernel, the third parameter is
-                                                     size_t addrlen.  */
-_GL_CXXALIAS_SYS_CAST (bind, int,
-                       (int fd,
-                        const struct sockaddr *addr, socklen_t addrlen));
-# endif
-_GL_CXXALIASWARN (bind);
-#elif @HAVE_WINSOCK2_H@
-# undef bind
-# define bind bind_used_without_requesting_gnulib_module_bind
-#elif defined GNULIB_POSIXCHECK
-# undef bind
-# if HAVE_RAW_DECL_BIND
-_GL_WARN_ON_USE (bind, "bind is not always POSIX compliant - "
-                 "use gnulib module bind for portability");
-# endif
-#endif
-
-#if @GNULIB_GETPEERNAME@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getpeername
-#   define getpeername rpl_getpeername
-#  endif
-_GL_FUNCDECL_RPL (getpeername, int,
-                  (int fd, struct sockaddr *addr, socklen_t *addrlen)
-                  _GL_ARG_NONNULL ((2, 3)));
-_GL_CXXALIAS_RPL (getpeername, int,
-                  (int fd, struct sockaddr *addr, socklen_t *addrlen));
-# else
-/* Need to cast, because on Solaris 10 systems, the third parameter is
-                                                       void *addrlen.  */
-_GL_CXXALIAS_SYS_CAST (getpeername, int,
-                       (int fd, struct sockaddr *addr, socklen_t *addrlen));
-# endif
-_GL_CXXALIASWARN (getpeername);
-#elif @HAVE_WINSOCK2_H@
-# undef getpeername
-# define getpeername getpeername_used_without_requesting_gnulib_module_getpeername
-#elif defined GNULIB_POSIXCHECK
-# undef getpeername
-# if HAVE_RAW_DECL_GETPEERNAME
-_GL_WARN_ON_USE (getpeername, "getpeername is not always POSIX compliant - "
-                 "use gnulib module getpeername for portability");
-# endif
-#endif
-
-#if @GNULIB_GETSOCKNAME@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getsockname
-#   define getsockname rpl_getsockname
-#  endif
-_GL_FUNCDECL_RPL (getsockname, int,
-                  (int fd, struct sockaddr *addr, socklen_t *addrlen)
-                  _GL_ARG_NONNULL ((2, 3)));
-_GL_CXXALIAS_RPL (getsockname, int,
-                  (int fd, struct sockaddr *addr, socklen_t *addrlen));
-# else
-/* Need to cast, because on Solaris 10 systems, the third parameter is
-                                                       void *addrlen.  */
-_GL_CXXALIAS_SYS_CAST (getsockname, int,
-                       (int fd, struct sockaddr *addr, socklen_t *addrlen));
-# endif
-_GL_CXXALIASWARN (getsockname);
-#elif @HAVE_WINSOCK2_H@
-# undef getsockname
-# define getsockname getsockname_used_without_requesting_gnulib_module_getsockname
-#elif defined GNULIB_POSIXCHECK
-# undef getsockname
-# if HAVE_RAW_DECL_GETSOCKNAME
-_GL_WARN_ON_USE (getsockname, "getsockname is not always POSIX compliant - "
-                 "use gnulib module getsockname for portability");
-# endif
-#endif
-
-#if @GNULIB_GETSOCKOPT@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getsockopt
-#   define getsockopt rpl_getsockopt
-#  endif
-_GL_FUNCDECL_RPL (getsockopt, int, (int fd, int level, int optname,
-                                    void *optval, socklen_t *optlen)
-                                   _GL_ARG_NONNULL ((4, 5)));
-_GL_CXXALIAS_RPL (getsockopt, int, (int fd, int level, int optname,
-                                    void *optval, socklen_t *optlen));
-# else
-/* Need to cast, because on Solaris 10 systems, the fifth parameter is
-                                                       void *optlen.  */
-_GL_CXXALIAS_SYS_CAST (getsockopt, int, (int fd, int level, int optname,
-                                         void *optval, socklen_t *optlen));
-# endif
-_GL_CXXALIASWARN (getsockopt);
-#elif @HAVE_WINSOCK2_H@
-# undef getsockopt
-# define getsockopt getsockopt_used_without_requesting_gnulib_module_getsockopt
-#elif defined GNULIB_POSIXCHECK
-# undef getsockopt
-# if HAVE_RAW_DECL_GETSOCKOPT
-_GL_WARN_ON_USE (getsockopt, "getsockopt is not always POSIX compliant - "
-                 "use gnulib module getsockopt for portability");
-# endif
-#endif
-
-#if @GNULIB_LISTEN@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef listen
-#   define listen rpl_listen
-#  endif
-_GL_FUNCDECL_RPL (listen, int, (int fd, int backlog));
-_GL_CXXALIAS_RPL (listen, int, (int fd, int backlog));
-# else
-_GL_CXXALIAS_SYS (listen, int, (int fd, int backlog));
-# endif
-_GL_CXXALIASWARN (listen);
-#elif @HAVE_WINSOCK2_H@
-# undef listen
-# define listen listen_used_without_requesting_gnulib_module_listen
-#elif defined GNULIB_POSIXCHECK
-# undef listen
-# if HAVE_RAW_DECL_LISTEN
-_GL_WARN_ON_USE (listen, "listen is not always POSIX compliant - "
-                 "use gnulib module listen for portability");
-# endif
-#endif
-
-#if @GNULIB_RECV@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef recv
-#   define recv rpl_recv
-#  endif
-_GL_FUNCDECL_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags)
-                                 _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (recv, ssize_t, (int fd, void *buf, size_t len, int flags));
-# else
-_GL_CXXALIAS_SYS (recv, ssize_t, (int fd, void *buf, size_t len, int flags));
-# endif
-_GL_CXXALIASWARN (recv);
-#elif @HAVE_WINSOCK2_H@
-# undef recv
-# define recv recv_used_without_requesting_gnulib_module_recv
-#elif defined GNULIB_POSIXCHECK
-# undef recv
-# if HAVE_RAW_DECL_RECV
-_GL_WARN_ON_USE (recv, "recv is not always POSIX compliant - "
-                 "use gnulib module recv for portability");
-# endif
-#endif
-
-#if @GNULIB_SEND@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef send
-#   define send rpl_send
-#  endif
-_GL_FUNCDECL_RPL (send, ssize_t,
-                  (int fd, const void *buf, size_t len, int flags)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (send, ssize_t,
-                  (int fd, const void *buf, size_t len, int flags));
-# else
-_GL_CXXALIAS_SYS (send, ssize_t,
-                  (int fd, const void *buf, size_t len, int flags));
-# endif
-_GL_CXXALIASWARN (send);
-#elif @HAVE_WINSOCK2_H@
-# undef send
-# define send send_used_without_requesting_gnulib_module_send
-#elif defined GNULIB_POSIXCHECK
-# undef send
-# if HAVE_RAW_DECL_SEND
-_GL_WARN_ON_USE (send, "send is not always POSIX compliant - "
-                 "use gnulib module send for portability");
-# endif
-#endif
-
-#if @GNULIB_RECVFROM@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef recvfrom
-#   define recvfrom rpl_recvfrom
-#  endif
-_GL_FUNCDECL_RPL (recvfrom, ssize_t,
-                  (int fd, void *buf, size_t len, int flags,
-                   struct sockaddr *from, socklen_t *fromlen)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (recvfrom, ssize_t,
-                  (int fd, void *buf, size_t len, int flags,
-                   struct sockaddr *from, socklen_t *fromlen));
-# else
-/* Need to cast, because on Solaris 10 systems, the sixth parameter is
-                                               void *fromlen.  */
-_GL_CXXALIAS_SYS_CAST (recvfrom, ssize_t,
-                       (int fd, void *buf, size_t len, int flags,
-                        struct sockaddr *from, socklen_t *fromlen));
-# endif
-_GL_CXXALIASWARN (recvfrom);
-#elif @HAVE_WINSOCK2_H@
-# undef recvfrom
-# define recvfrom recvfrom_used_without_requesting_gnulib_module_recvfrom
-#elif defined GNULIB_POSIXCHECK
-# undef recvfrom
-# if HAVE_RAW_DECL_RECVFROM
-_GL_WARN_ON_USE (recvfrom, "recvfrom is not always POSIX compliant - "
-                 "use gnulib module recvfrom for portability");
-# endif
-#endif
-
-#if @GNULIB_SENDTO@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef sendto
-#   define sendto rpl_sendto
-#  endif
-_GL_FUNCDECL_RPL (sendto, ssize_t,
-                  (int fd, const void *buf, size_t len, int flags,
-                   const struct sockaddr *to, socklen_t tolen)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (sendto, ssize_t,
-                  (int fd, const void *buf, size_t len, int flags,
-                   const struct sockaddr *to, socklen_t tolen));
-# else
-/* Need to cast, because on NonStop Kernel, the sixth parameter is
-                                                   size_t tolen.  */
-_GL_CXXALIAS_SYS_CAST (sendto, ssize_t,
-                       (int fd, const void *buf, size_t len, int flags,
-                        const struct sockaddr *to, socklen_t tolen));
-# endif
-_GL_CXXALIASWARN (sendto);
-#elif @HAVE_WINSOCK2_H@
-# undef sendto
-# define sendto sendto_used_without_requesting_gnulib_module_sendto
-#elif defined GNULIB_POSIXCHECK
-# undef sendto
-# if HAVE_RAW_DECL_SENDTO
-_GL_WARN_ON_USE (sendto, "sendto is not always POSIX compliant - "
-                 "use gnulib module sendto for portability");
-# endif
-#endif
-
-#if @GNULIB_SETSOCKOPT@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef setsockopt
-#   define setsockopt rpl_setsockopt
-#  endif
-_GL_FUNCDECL_RPL (setsockopt, int, (int fd, int level, int optname,
-                                    const void * optval, socklen_t optlen)
-                                   _GL_ARG_NONNULL ((4)));
-_GL_CXXALIAS_RPL (setsockopt, int, (int fd, int level, int optname,
-                                    const void * optval, socklen_t optlen));
-# else
-/* Need to cast, because on NonStop Kernel, the fifth parameter is
-                                             size_t optlen.  */
-_GL_CXXALIAS_SYS_CAST (setsockopt, int,
-                       (int fd, int level, int optname,
-                        const void * optval, socklen_t optlen));
-# endif
-_GL_CXXALIASWARN (setsockopt);
-#elif @HAVE_WINSOCK2_H@
-# undef setsockopt
-# define setsockopt setsockopt_used_without_requesting_gnulib_module_setsockopt
-#elif defined GNULIB_POSIXCHECK
-# undef setsockopt
-# if HAVE_RAW_DECL_SETSOCKOPT
-_GL_WARN_ON_USE (setsockopt, "setsockopt is not always POSIX compliant - "
-                 "use gnulib module setsockopt for portability");
-# endif
-#endif
-
-#if @GNULIB_SHUTDOWN@
-# if @HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef shutdown
-#   define shutdown rpl_shutdown
-#  endif
-_GL_FUNCDECL_RPL (shutdown, int, (int fd, int how));
-_GL_CXXALIAS_RPL (shutdown, int, (int fd, int how));
-# else
-_GL_CXXALIAS_SYS (shutdown, int, (int fd, int how));
-# endif
-_GL_CXXALIASWARN (shutdown);
-#elif @HAVE_WINSOCK2_H@
-# undef shutdown
-# define shutdown shutdown_used_without_requesting_gnulib_module_shutdown
-#elif defined GNULIB_POSIXCHECK
-# undef shutdown
-# if HAVE_RAW_DECL_SHUTDOWN
-_GL_WARN_ON_USE (shutdown, "shutdown is not always POSIX compliant - "
-                 "use gnulib module shutdown for portability");
-# endif
-#endif
-
-#if @GNULIB_ACCEPT4@
-/* Accept a connection on a socket, with specific opening flags.
-   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
-   and O_TEXT, O_BINARY (defined in "binary-io.h").
-   See also the Linux man page at
-   <http://www.kernel.org/doc/man-pages/online/pages/man2/accept4.2.html>.  */
-# if @HAVE_ACCEPT4@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define accept4 rpl_accept4
-#  endif
-_GL_FUNCDECL_RPL (accept4, int,
-                  (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
-                   int flags));
-_GL_CXXALIAS_RPL (accept4, int,
-                  (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
-                   int flags));
-# else
-_GL_FUNCDECL_SYS (accept4, int,
-                  (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
-                   int flags));
-_GL_CXXALIAS_SYS (accept4, int,
-                  (int sockfd, struct sockaddr *addr, socklen_t *addrlen,
-                   int flags));
-# endif
-_GL_CXXALIASWARN (accept4);
-#elif defined GNULIB_POSIXCHECK
-# undef accept4
-# if HAVE_RAW_DECL_ACCEPT4
-_GL_WARN_ON_USE (accept4, "accept4 is unportable - "
-                 "use gnulib module accept4 for portability");
-# endif
-#endif
-
-_GL_INLINE_HEADER_END
-
-#endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */
-#endif /* _@GUARD_PREFIX@_SYS_SOCKET_H */
-#endif
diff --git a/lib/sys_types.in.h b/lib/sys_types.in.h
deleted file mode 100644
index deb5d67d..00000000
--- a/lib/sys_types.in.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Provide a more complete sys/types.h.
-
-   Copyright (C) 2011-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
-
-/* The include_next requires a split double-inclusion guard.  */
-# define _GL_INCLUDING_SYS_TYPES_H
-#@INCLUDE_NEXT@ @NEXT_SYS_TYPES_H@
-# undef _GL_INCLUDING_SYS_TYPES_H
-
-#ifndef _@GUARD_PREFIX@_SYS_TYPES_H
-#define _@GUARD_PREFIX@_SYS_TYPES_H
-
-/* Override off_t if Large File Support is requested on native Windows.  */
-#if @WINDOWS_64_BIT_OFF_T@
-/* Same as int64_t in <stdint.h>.  */
-# if defined _MSC_VER
-#  define off_t __int64
-# else
-#  define off_t long long int
-# endif
-/* Indicator, for gnulib internal purposes.  */
-# define _GL_WINDOWS_64_BIT_OFF_T 1
-#endif
-
-/* MSVC 9 defines size_t in <stddef.h>, not in <sys/types.h>.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) \
-    && ! defined __GLIBC__
-# include <stddef.h>
-#endif
-
-#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */
-#endif /* _@GUARD_PREFIX@_SYS_TYPES_H */
diff --git a/lib/sys_uio.in.h b/lib/sys_uio.in.h
deleted file mode 100644
index 0b403bc1..00000000
--- a/lib/sys_uio.in.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* Substitute for <sys/uio.h>.
-   Copyright (C) 2011-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-# if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-# endif
-@PRAGMA_COLUMNS@
-
-#ifndef _@GUARD_PREFIX@_SYS_UIO_H
-
-#if @HAVE_SYS_UIO_H@
-
-/* On OpenBSD 4.4, <sys/uio.h> assumes prior inclusion of <sys/types.h>.  */
-# include <sys/types.h>
-
-/* The include_next requires a split double-inclusion guard.  */
-# @INCLUDE_NEXT@ @NEXT_SYS_UIO_H@
-
-#endif
-
-#ifndef _@GUARD_PREFIX@_SYS_UIO_H
-#define _@GUARD_PREFIX@_SYS_UIO_H
-
-#if !@HAVE_SYS_UIO_H@
-/* A platform that lacks <sys/uio.h>.  */
-/* Get 'size_t' and 'ssize_t'.  */
-# include <sys/types.h>
-
-# ifdef __cplusplus
-extern "C" {
-# endif
-
-# if !GNULIB_defined_struct_iovec
-/* All known platforms that lack <sys/uio.h> also lack any declaration
-   of struct iovec in any other header.  */
-struct iovec {
-  void *iov_base;
-  size_t iov_len;
-};
-#  define GNULIB_defined_struct_iovec 1
-# endif
-
-# ifdef __cplusplus
-}
-# endif
-
-#endif
-
-#endif /* _@GUARD_PREFIX@_SYS_UIO_H */
-#endif /* _@GUARD_PREFIX@_SYS_UIO_H */
diff --git a/lib/unistd.c b/lib/unistd.c
deleted file mode 100644
index 6c6a8e26..00000000
--- a/lib/unistd.c
+++ /dev/null
@@ -1,3 +0,0 @@
-#include <config.h>
-#define _GL_UNISTD_INLINE _GL_EXTERN_INLINE
-#include "unistd.h"
diff --git a/lib/unistd.in.h b/lib/unistd.in.h
deleted file mode 100644
index 622b2287..00000000
--- a/lib/unistd.in.h
+++ /dev/null
@@ -1,1557 +0,0 @@
-/* Substitute for and wrapper around <unistd.h>.
-   Copyright (C) 2003-2014 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3, or (at your option)
-   any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, see <http://www.gnu.org/licenses/>.  */
-
-#ifndef _@GUARD_PREFIX@_UNISTD_H
-
-#if __GNUC__ >= 3
-@PRAGMA_SYSTEM_HEADER@
-#endif
-@PRAGMA_COLUMNS@
-
-#ifdef _GL_INCLUDING_UNISTD_H
-/* Special invocation convention:
-   - On Mac OS X 10.3.9 we have a sequence of nested includes
-     <unistd.h> -> <signal.h> -> <pthread.h> -> <unistd.h>
-     In this situation, the functions are not yet declared, therefore we cannot
-     provide the C++ aliases.  */
-
-#@INCLUDE_NEXT@ @NEXT_UNISTD_H@
-
-#else
-/* Normal invocation convention.  */
-
-/* The include_next requires a split double-inclusion guard.  */
-#if @HAVE_UNISTD_H@
-# define _GL_INCLUDING_UNISTD_H
-# @INCLUDE_NEXT@ @NEXT_UNISTD_H@
-# undef _GL_INCLUDING_UNISTD_H
-#endif
-
-/* Get all possible declarations of gethostname().  */
-#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \
-  && !defined _GL_INCLUDING_WINSOCK2_H
-# define _GL_INCLUDING_WINSOCK2_H
-# include <winsock2.h>
-# undef _GL_INCLUDING_WINSOCK2_H
-#endif
-
-#if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
-#define _@GUARD_PREFIX@_UNISTD_H
-
-/* NetBSD 5.0 mis-defines NULL.  Also get size_t.  */
-#include <stddef.h>
-
-/* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>.  */
-/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
-     || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \
-         && defined __CYGWIN__)) \
-    && ! defined __GLIBC__
-# include <stdio.h>
-#endif
-
-/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \
-    && ! defined __GLIBC__
-# include <fcntl.h>
-#endif
-
-/* mingw fails to declare _exit in <unistd.h>.  */
-/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
-   <unistd.h>.  */
-/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>.  */
-/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is
-   included here.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if !defined __GLIBC__ && !defined __osf__
-# define __need_system_stdlib_h
-# include <stdlib.h>
-# undef __need_system_stdlib_h
-#endif
-
-/* Native Windows platforms declare chdir, getcwd, rmdir in
-   <io.h> and/or <direct.h>, not in <unistd.h>.
-   They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
-   lseek(), read(), unlink(), write() in <io.h>.  */
-#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
-      || defined GNULIB_POSIXCHECK) \
-     && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
-# include <io.h>     /* mingw32, mingw64 */
-# include <direct.h> /* mingw64, MSVC 9 */
-#elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \
-       || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \
-       || defined GNULIB_POSIXCHECK) \
-      && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
-# include <io.h>
-#endif
-
-/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
-   NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>.  */
-/* But avoid namespace pollution on glibc systems.  */
-#if ((@GNULIB_GETDOMAINNAME@ && (defined _AIX || defined __osf__)) \
-     || (@GNULIB_GETHOSTNAME@ && defined __TANDEM)) \
-    && !defined __GLIBC__
-# include <netdb.h>
-#endif
-
-/* MSVC defines off_t in <sys/types.h>.
-   May also define off_t to a 64-bit type on native Windows.  */
-#if !@HAVE_UNISTD_H@ || @WINDOWS_64_BIT_OFF_T@
-/* Get off_t.  */
-# include <sys/types.h>
-#endif
-
-#if (@GNULIB_READ@ || @GNULIB_WRITE@ \
-     || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
-     || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK)
-/* Get ssize_t.  */
-# include <sys/types.h>
-#endif
-
-/* Get getopt(), optarg, optind, opterr, optopt.
-   But avoid namespace pollution on glibc systems.  */
-#if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
-# define __need_getopt
-# include <getopt.h>
-#endif
-
-#ifndef _GL_INLINE_HEADER_BEGIN
- #error "Please include config.h first."
-#endif
-_GL_INLINE_HEADER_BEGIN
-#ifndef _GL_UNISTD_INLINE
-# define _GL_UNISTD_INLINE _GL_INLINE
-#endif
-
-/* The definitions of _GL_FUNCDECL_RPL etc. are copied here.  */
-
-/* The definition of _GL_ARG_NONNULL is copied here.  */
-
-/* The definition of _GL_WARN_ON_USE is copied here.  */
-
-
-/* Hide some function declarations from <winsock2.h>.  */
-
-#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@
-# if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef socket
-#   define socket              socket_used_without_including_sys_socket_h
-#   undef connect
-#   define connect             connect_used_without_including_sys_socket_h
-#   undef accept
-#   define accept              accept_used_without_including_sys_socket_h
-#   undef bind
-#   define bind                bind_used_without_including_sys_socket_h
-#   undef getpeername
-#   define getpeername         getpeername_used_without_including_sys_socket_h
-#   undef getsockname
-#   define getsockname         getsockname_used_without_including_sys_socket_h
-#   undef getsockopt
-#   define getsockopt          getsockopt_used_without_including_sys_socket_h
-#   undef listen
-#   define listen              listen_used_without_including_sys_socket_h
-#   undef recv
-#   define recv                recv_used_without_including_sys_socket_h
-#   undef send
-#   define send                send_used_without_including_sys_socket_h
-#   undef recvfrom
-#   define recvfrom            recvfrom_used_without_including_sys_socket_h
-#   undef sendto
-#   define sendto              sendto_used_without_including_sys_socket_h
-#   undef setsockopt
-#   define setsockopt          setsockopt_used_without_including_sys_socket_h
-#   undef shutdown
-#   define shutdown            shutdown_used_without_including_sys_socket_h
-#  else
-    _GL_WARN_ON_USE (socket,
-                     "socket() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (connect,
-                     "connect() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (accept,
-                     "accept() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (bind,
-                     "bind() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (getpeername,
-                     "getpeername() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (getsockname,
-                     "getsockname() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (getsockopt,
-                     "getsockopt() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (listen,
-                     "listen() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (recv,
-                     "recv() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (send,
-                     "send() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (recvfrom,
-                     "recvfrom() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (sendto,
-                     "sendto() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (setsockopt,
-                     "setsockopt() used without including <sys/socket.h>");
-    _GL_WARN_ON_USE (shutdown,
-                     "shutdown() used without including <sys/socket.h>");
-#  endif
-# endif
-# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef select
-#   define select              select_used_without_including_sys_select_h
-#  else
-    _GL_WARN_ON_USE (select,
-                     "select() used without including <sys/select.h>");
-#  endif
-# endif
-#endif
-
-
-/* OS/2 EMX lacks these macros.  */
-#ifndef STDIN_FILENO
-# define STDIN_FILENO 0
-#endif
-#ifndef STDOUT_FILENO
-# define STDOUT_FILENO 1
-#endif
-#ifndef STDERR_FILENO
-# define STDERR_FILENO 2
-#endif
-
-/* Ensure *_OK macros exist.  */
-#ifndef F_OK
-# define F_OK 0
-# define X_OK 1
-# define W_OK 2
-# define R_OK 4
-#endif
-
-
-/* Declare overridden functions.  */
-
-
-#if defined GNULIB_POSIXCHECK
-/* The access() function is a security risk.  */
-_GL_WARN_ON_USE (access, "the access function is a security risk - "
-                 "use the gnulib module faccessat instead");
-#endif
-
-
-#if @GNULIB_CHDIR@
-_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIASWARN (chdir);
-#elif defined GNULIB_POSIXCHECK
-# undef chdir
-# if HAVE_RAW_DECL_CHDIR
-_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - "
-                 "use gnulib module chdir for portability");
-# endif
-#endif
-
-
-#if @GNULIB_CHOWN@
-/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
-   to GID (if GID is not -1).  Follow symbolic links.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html.  */
-# if @REPLACE_CHOWN@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef chown
-#   define chown rpl_chown
-#  endif
-_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)
-                              _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid));
-# else
-#  if !@HAVE_CHOWN@
-_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)
-                              _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid));
-# endif
-_GL_CXXALIASWARN (chown);
-#elif defined GNULIB_POSIXCHECK
-# undef chown
-# if HAVE_RAW_DECL_CHOWN
-_GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and "
-                 "doesn't treat a uid or gid of -1 on some systems - "
-                 "use gnulib module chown for portability");
-# endif
-#endif
-
-
-#if @GNULIB_CLOSE@
-# if @REPLACE_CLOSE@
-/* Automatically included by modules that need a replacement for close.  */
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef close
-#   define close rpl_close
-#  endif
-_GL_FUNCDECL_RPL (close, int, (int fd));
-_GL_CXXALIAS_RPL (close, int, (int fd));
-# else
-_GL_CXXALIAS_SYS (close, int, (int fd));
-# endif
-_GL_CXXALIASWARN (close);
-#elif @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
-# undef close
-# define close close_used_without_requesting_gnulib_module_close
-#elif defined GNULIB_POSIXCHECK
-# undef close
-/* Assume close is always declared.  */
-_GL_WARN_ON_USE (close, "close does not portably work on sockets - "
-                 "use gnulib module close for portability");
-#endif
-
-
-#if @GNULIB_DUP@
-# if @REPLACE_DUP@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define dup rpl_dup
-#  endif
-_GL_FUNCDECL_RPL (dup, int, (int oldfd));
-_GL_CXXALIAS_RPL (dup, int, (int oldfd));
-# else
-_GL_CXXALIAS_SYS (dup, int, (int oldfd));
-# endif
-_GL_CXXALIASWARN (dup);
-#elif defined GNULIB_POSIXCHECK
-# undef dup
-# if HAVE_RAW_DECL_DUP
-_GL_WARN_ON_USE (dup, "dup is unportable - "
-                 "use gnulib module dup for portability");
-# endif
-#endif
-
-
-#if @GNULIB_DUP2@
-/* Copy the file descriptor OLDFD into file descriptor NEWFD.  Do nothing if
-   NEWFD = OLDFD, otherwise close NEWFD first if it is open.
-   Return newfd if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>.  */
-# if @REPLACE_DUP2@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define dup2 rpl_dup2
-#  endif
-_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
-_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
-# else
-#  if !@HAVE_DUP2@
-_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd));
-#  endif
-_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
-# endif
-_GL_CXXALIASWARN (dup2);
-#elif defined GNULIB_POSIXCHECK
-# undef dup2
-# if HAVE_RAW_DECL_DUP2
-_GL_WARN_ON_USE (dup2, "dup2 is unportable - "
-                 "use gnulib module dup2 for portability");
-# endif
-#endif
-
-
-#if @GNULIB_DUP3@
-/* Copy the file descriptor OLDFD into file descriptor NEWFD, with the
-   specified flags.
-   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
-   and O_TEXT, O_BINARY (defined in "binary-io.h").
-   Close NEWFD first if it is open.
-   Return newfd if successful, otherwise -1 and errno set.
-   See the Linux man page at
-   <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>.  */
-# if @HAVE_DUP3@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define dup3 rpl_dup3
-#  endif
-_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags));
-_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags));
-# else
-_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags));
-_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags));
-# endif
-_GL_CXXALIASWARN (dup3);
-#elif defined GNULIB_POSIXCHECK
-# undef dup3
-# if HAVE_RAW_DECL_DUP3
-_GL_WARN_ON_USE (dup3, "dup3 is unportable - "
-                 "use gnulib module dup3 for portability");
-# endif
-#endif
-
-
-#if @GNULIB_ENVIRON@
-# if !@HAVE_DECL_ENVIRON@
-/* Set of environment variables and values.  An array of strings of the form
-   "VARIABLE=VALUE", terminated with a NULL.  */
-#  if defined __APPLE__ && defined __MACH__
-#   include <crt_externs.h>
-#   define environ (*_NSGetEnviron ())
-#  else
-#   ifdef __cplusplus
-extern "C" {
-#   endif
-extern char **environ;
-#   ifdef __cplusplus
-}
-#   endif
-#  endif
-# endif
-#elif defined GNULIB_POSIXCHECK
-# if HAVE_RAW_DECL_ENVIRON
-_GL_UNISTD_INLINE char ***
-rpl_environ (void)
-{
-  return &environ;
-}
-_GL_WARN_ON_USE (rpl_environ, "environ is unportable - "
-                 "use gnulib module environ for portability");
-#  undef environ
-#  define environ (*rpl_environ ())
-# endif
-#endif
-
-
-#if @GNULIB_EUIDACCESS@
-/* Like access(), except that it uses the effective user id and group id of
-   the current process.  */
-# if !@HAVE_EUIDACCESS@
-_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode)
-                                   _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode));
-_GL_CXXALIASWARN (euidaccess);
-# if defined GNULIB_POSIXCHECK
-/* Like access(), this function is a security risk.  */
-_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - "
-                 "use the gnulib module faccessat instead");
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef euidaccess
-# if HAVE_RAW_DECL_EUIDACCESS
-_GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - "
-                 "use gnulib module euidaccess for portability");
-# endif
-#endif
-
-
-#if @GNULIB_FACCESSAT@
-# if !@HAVE_FACCESSAT@
-_GL_FUNCDECL_SYS (faccessat, int,
-                  (int fd, char const *file, int mode, int flag)
-                  _GL_ARG_NONNULL ((2)));
-# endif
-_GL_CXXALIAS_SYS (faccessat, int,
-                  (int fd, char const *file, int mode, int flag));
-_GL_CXXALIASWARN (faccessat);
-#elif defined GNULIB_POSIXCHECK
-# undef faccessat
-# if HAVE_RAW_DECL_FACCESSAT
-_GL_WARN_ON_USE (faccessat, "faccessat is not portable - "
-                 "use gnulib module faccessat for portability");
-# endif
-#endif
-
-
-#if @GNULIB_FCHDIR@
-/* Change the process' current working directory to the directory on which
-   the given file descriptor is open.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>.  */
-# if ! @HAVE_FCHDIR@
-_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
-
-/* Gnulib internal hooks needed to maintain the fchdir metadata.  */
-_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename)
-     _GL_ARG_NONNULL ((2));
-_GL_EXTERN_C void _gl_unregister_fd (int fd);
-_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
-_GL_EXTERN_C const char *_gl_directory_name (int fd);
-
-# else
-#  if !@HAVE_DECL_FCHDIR@
-_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
-#  endif
-# endif
-_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
-_GL_CXXALIASWARN (fchdir);
-#elif defined GNULIB_POSIXCHECK
-# undef fchdir
-# if HAVE_RAW_DECL_FCHDIR
-_GL_WARN_ON_USE (fchdir, "fchdir is unportable - "
-                 "use gnulib module fchdir for portability");
-# endif
-#endif
-
-
-#if @GNULIB_FCHOWNAT@
-# if @REPLACE_FCHOWNAT@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef fchownat
-#   define fchownat rpl_fchownat
-#  endif
-_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag));
-# else
-#  if !@HAVE_FCHOWNAT@
-_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file,
-                                  uid_t owner, gid_t group, int flag));
-# endif
-_GL_CXXALIASWARN (fchownat);
-#elif defined GNULIB_POSIXCHECK
-# undef fchownat
-# if HAVE_RAW_DECL_FCHOWNAT
-_GL_WARN_ON_USE (fchownat, "fchownat is not portable - "
-                 "use gnulib module openat for portability");
-# endif
-#endif
-
-
-#if @GNULIB_FDATASYNC@
-/* Synchronize changes to a file.
-   Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>.  */
-# if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@
-_GL_FUNCDECL_SYS (fdatasync, int, (int fd));
-# endif
-_GL_CXXALIAS_SYS (fdatasync, int, (int fd));
-_GL_CXXALIASWARN (fdatasync);
-#elif defined GNULIB_POSIXCHECK
-# undef fdatasync
-# if HAVE_RAW_DECL_FDATASYNC
-_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
-                 "use gnulib module fdatasync for portability");
-# endif
-#endif
-
-
-#if @GNULIB_FSYNC@
-/* Synchronize changes, including metadata, to a file.
-   Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>.  */
-# if !@HAVE_FSYNC@
-_GL_FUNCDECL_SYS (fsync, int, (int fd));
-# endif
-_GL_CXXALIAS_SYS (fsync, int, (int fd));
-_GL_CXXALIASWARN (fsync);
-#elif defined GNULIB_POSIXCHECK
-# undef fsync
-# if HAVE_RAW_DECL_FSYNC
-_GL_WARN_ON_USE (fsync, "fsync is unportable - "
-                 "use gnulib module fsync for portability");
-# endif
-#endif
-
-
-#if @GNULIB_FTRUNCATE@
-/* Change the size of the file to which FD is opened to become equal to LENGTH.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>.  */
-# if @REPLACE_FTRUNCATE@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef ftruncate
-#   define ftruncate rpl_ftruncate
-#  endif
-_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
-_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
-# else
-#  if !@HAVE_FTRUNCATE@
-_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
-#  endif
-_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
-# endif
-_GL_CXXALIASWARN (ftruncate);
-#elif defined GNULIB_POSIXCHECK
-# undef ftruncate
-# if HAVE_RAW_DECL_FTRUNCATE
-_GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - "
-                 "use gnulib module ftruncate for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETCWD@
-/* Get the name of the current working directory, and put it in SIZE bytes
-   of BUF.
-   Return BUF if successful, or NULL if the directory couldn't be determined
-   or SIZE was too small.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
-   Additionally, the gnulib module 'getcwd' guarantees the following GNU
-   extension: If BUF is NULL, an array is allocated with 'malloc'; the array
-   is SIZE bytes long, unless SIZE == 0, in which case it is as big as
-   necessary.  */
-# if @REPLACE_GETCWD@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define getcwd rpl_getcwd
-#  endif
-_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size));
-_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size));
-# else
-/* Need to cast, because on mingw, the second parameter is
-                                                   int size.  */
-_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size));
-# endif
-_GL_CXXALIASWARN (getcwd);
-#elif defined GNULIB_POSIXCHECK
-# undef getcwd
-# if HAVE_RAW_DECL_GETCWD
-_GL_WARN_ON_USE (getcwd, "getcwd is unportable - "
-                 "use gnulib module getcwd for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETDOMAINNAME@
-/* Return the NIS domain name of the machine.
-   WARNING! The NIS domain name is unrelated to the fully qualified host name
-            of the machine.  It is also unrelated to email addresses.
-   WARNING! The NIS domain name is usually the empty string or "(none)" when
-            not using NIS.
-
-   Put up to LEN bytes of the NIS domain name into NAME.
-   Null terminate it if the name is shorter than LEN.
-   If the NIS domain name is longer than LEN, set errno = EINVAL and return -1.
-   Return 0 if successful, otherwise set errno and return -1.  */
-# if @REPLACE_GETDOMAINNAME@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getdomainname
-#   define getdomainname rpl_getdomainname
-#  endif
-_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len)
-                                      _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len));
-# else
-#  if !@HAVE_DECL_GETDOMAINNAME@
-_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len)
-                                      _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len));
-# endif
-_GL_CXXALIASWARN (getdomainname);
-#elif defined GNULIB_POSIXCHECK
-# undef getdomainname
-# if HAVE_RAW_DECL_GETDOMAINNAME
-_GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - "
-                 "use gnulib module getdomainname for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETDTABLESIZE@
-/* Return the maximum number of file descriptors in the current process.
-   In POSIX, this is same as sysconf (_SC_OPEN_MAX).  */
-# if @REPLACE_GETDTABLESIZE@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getdtablesize
-#   define getdtablesize rpl_getdtablesize
-#  endif
-_GL_FUNCDECL_RPL (getdtablesize, int, (void));
-_GL_CXXALIAS_RPL (getdtablesize, int, (void));
-# else
-#  if !@HAVE_GETDTABLESIZE@
-_GL_FUNCDECL_SYS (getdtablesize, int, (void));
-#  endif
-_GL_CXXALIAS_SYS (getdtablesize, int, (void));
-# endif
-_GL_CXXALIASWARN (getdtablesize);
-#elif defined GNULIB_POSIXCHECK
-# undef getdtablesize
-# if HAVE_RAW_DECL_GETDTABLESIZE
-_GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - "
-                 "use gnulib module getdtablesize for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETGROUPS@
-/* Return the supplemental groups that the current process belongs to.
-   It is unspecified whether the effective group id is in the list.
-   If N is 0, return the group count; otherwise, N describes how many
-   entries are available in GROUPS.  Return -1 and set errno if N is
-   not 0 and not large enough.  Fails with ENOSYS on some systems.  */
-# if @REPLACE_GETGROUPS@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef getgroups
-#   define getgroups rpl_getgroups
-#  endif
-_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups));
-_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups));
-# else
-#  if !@HAVE_GETGROUPS@
-_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups));
-#  endif
-_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups));
-# endif
-_GL_CXXALIASWARN (getgroups);
-#elif defined GNULIB_POSIXCHECK
-# undef getgroups
-# if HAVE_RAW_DECL_GETGROUPS
-_GL_WARN_ON_USE (getgroups, "getgroups is unportable - "
-                 "use gnulib module getgroups for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETHOSTNAME@
-/* Return the standard host name of the machine.
-   WARNING! The host name may or may not be fully qualified.
-
-   Put up to LEN bytes of the host name into NAME.
-   Null terminate it if the name is shorter than LEN.
-   If the host name is longer than LEN, set errno = EINVAL and return -1.
-   Return 0 if successful, otherwise set errno and return -1.  */
-# if @UNISTD_H_HAVE_WINSOCK2_H@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef gethostname
-#   define gethostname rpl_gethostname
-#  endif
-_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len)
-                                    _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
-# else
-#  if !@HAVE_GETHOSTNAME@
-_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
-                                    _GL_ARG_NONNULL ((1)));
-#  endif
-/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
-   parameter is
-                                                      int len.  */
-_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
-# endif
-_GL_CXXALIASWARN (gethostname);
-#elif @UNISTD_H_HAVE_WINSOCK2_H@
-# undef gethostname
-# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname
-#elif defined GNULIB_POSIXCHECK
-# undef gethostname
-# if HAVE_RAW_DECL_GETHOSTNAME
-_GL_WARN_ON_USE (gethostname, "gethostname is unportable - "
-                 "use gnulib module gethostname for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETLOGIN@
-/* Returns the user's login name, or NULL if it cannot be found.  Upon error,
-   returns NULL with errno set.
-
-   See <http://www.opengroup.org/susv3xsh/getlogin.html>.
-
-   Most programs don't need to use this function, because the information is
-   available through environment variables:
-     ${LOGNAME-$USER}        on Unix platforms,
-     $USERNAME               on native Windows platforms.
- */
-# if !@HAVE_GETLOGIN@
-_GL_FUNCDECL_SYS (getlogin, char *, (void));
-# endif
-_GL_CXXALIAS_SYS (getlogin, char *, (void));
-_GL_CXXALIASWARN (getlogin);
-#elif defined GNULIB_POSIXCHECK
-# undef getlogin
-# if HAVE_RAW_DECL_GETLOGIN
-_GL_WARN_ON_USE (getlogin, "getlogin is unportable - "
-                 "use gnulib module getlogin for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETLOGIN_R@
-/* Copies the user's login name to NAME.
-   The array pointed to by NAME has room for SIZE bytes.
-
-   Returns 0 if successful.  Upon error, an error number is returned, or -1 in
-   the case that the login name cannot be found but no specific error is
-   provided (this case is hopefully rare but is left open by the POSIX spec).
-
-   See <http://www.opengroup.org/susv3xsh/getlogin.html>.
-
-   Most programs don't need to use this function, because the information is
-   available through environment variables:
-     ${LOGNAME-$USER}        on Unix platforms,
-     $USERNAME               on native Windows platforms.
- */
-# if @REPLACE_GETLOGIN_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define getlogin_r rpl_getlogin_r
-#  endif
-_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size)
-                                   _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size));
-# else
-#  if !@HAVE_DECL_GETLOGIN_R@
-_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size)
-                                   _GL_ARG_NONNULL ((1)));
-#  endif
-/* Need to cast, because on Solaris 10 systems, the second argument is
-                                                     int size.  */
-_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size));
-# endif
-_GL_CXXALIASWARN (getlogin_r);
-#elif defined GNULIB_POSIXCHECK
-# undef getlogin_r
-# if HAVE_RAW_DECL_GETLOGIN_R
-_GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - "
-                 "use gnulib module getlogin_r for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETPAGESIZE@
-# if @REPLACE_GETPAGESIZE@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define getpagesize rpl_getpagesize
-#  endif
-_GL_FUNCDECL_RPL (getpagesize, int, (void));
-_GL_CXXALIAS_RPL (getpagesize, int, (void));
-# else
-#  if !@HAVE_GETPAGESIZE@
-#   if !defined getpagesize
-/* This is for POSIX systems.  */
-#    if !defined _gl_getpagesize && defined _SC_PAGESIZE
-#     if ! (defined __VMS && __VMS_VER < 70000000)
-#      define _gl_getpagesize() sysconf (_SC_PAGESIZE)
-#     endif
-#    endif
-/* This is for older VMS.  */
-#    if !defined _gl_getpagesize && defined __VMS
-#     ifdef __ALPHA
-#      define _gl_getpagesize() 8192
-#     else
-#      define _gl_getpagesize() 512
-#     endif
-#    endif
-/* This is for BeOS.  */
-#    if !defined _gl_getpagesize && @HAVE_OS_H@
-#     include <OS.h>
-#     if defined B_PAGE_SIZE
-#      define _gl_getpagesize() B_PAGE_SIZE
-#     endif
-#    endif
-/* This is for AmigaOS4.0.  */
-#    if !defined _gl_getpagesize && defined __amigaos4__
-#     define _gl_getpagesize() 2048
-#    endif
-/* This is for older Unix systems.  */
-#    if !defined _gl_getpagesize && @HAVE_SYS_PARAM_H@
-#     include <sys/param.h>
-#     ifdef EXEC_PAGESIZE
-#      define _gl_getpagesize() EXEC_PAGESIZE
-#     else
-#      ifdef NBPG
-#       ifndef CLSIZE
-#        define CLSIZE 1
-#       endif
-#       define _gl_getpagesize() (NBPG * CLSIZE)
-#      else
-#       ifdef NBPC
-#        define _gl_getpagesize() NBPC
-#       endif
-#      endif
-#     endif
-#    endif
-#    if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#     define getpagesize() _gl_getpagesize ()
-#    else
-#     if !GNULIB_defined_getpagesize_function
-_GL_UNISTD_INLINE int
-getpagesize ()
-{
-  return _gl_getpagesize ();
-}
-#      define GNULIB_defined_getpagesize_function 1
-#     endif
-#    endif
-#   endif
-#  endif
-/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t.  */
-_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void));
-# endif
-# if @HAVE_DECL_GETPAGESIZE@
-_GL_CXXALIASWARN (getpagesize);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef getpagesize
-# if HAVE_RAW_DECL_GETPAGESIZE
-_GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - "
-                 "use gnulib module getpagesize for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GETUSERSHELL@
-/* Return the next valid login shell on the system, or NULL when the end of
-   the list has been reached.  */
-# if !@HAVE_DECL_GETUSERSHELL@
-_GL_FUNCDECL_SYS (getusershell, char *, (void));
-# endif
-_GL_CXXALIAS_SYS (getusershell, char *, (void));
-_GL_CXXALIASWARN (getusershell);
-#elif defined GNULIB_POSIXCHECK
-# undef getusershell
-# if HAVE_RAW_DECL_GETUSERSHELL
-_GL_WARN_ON_USE (getusershell, "getusershell is unportable - "
-                 "use gnulib module getusershell for portability");
-# endif
-#endif
-
-#if @GNULIB_GETUSERSHELL@
-/* Rewind to pointer that is advanced at each getusershell() call.  */
-# if !@HAVE_DECL_GETUSERSHELL@
-_GL_FUNCDECL_SYS (setusershell, void, (void));
-# endif
-_GL_CXXALIAS_SYS (setusershell, void, (void));
-_GL_CXXALIASWARN (setusershell);
-#elif defined GNULIB_POSIXCHECK
-# undef setusershell
-# if HAVE_RAW_DECL_SETUSERSHELL
-_GL_WARN_ON_USE (setusershell, "setusershell is unportable - "
-                 "use gnulib module getusershell for portability");
-# endif
-#endif
-
-#if @GNULIB_GETUSERSHELL@
-/* Free the pointer that is advanced at each getusershell() call and
-   associated resources.  */
-# if !@HAVE_DECL_GETUSERSHELL@
-_GL_FUNCDECL_SYS (endusershell, void, (void));
-# endif
-_GL_CXXALIAS_SYS (endusershell, void, (void));
-_GL_CXXALIASWARN (endusershell);
-#elif defined GNULIB_POSIXCHECK
-# undef endusershell
-# if HAVE_RAW_DECL_ENDUSERSHELL
-_GL_WARN_ON_USE (endusershell, "endusershell is unportable - "
-                 "use gnulib module getusershell for portability");
-# endif
-#endif
-
-
-#if @GNULIB_GROUP_MEMBER@
-/* Determine whether group id is in calling user's group list.  */
-# if !@HAVE_GROUP_MEMBER@
-_GL_FUNCDECL_SYS (group_member, int, (gid_t gid));
-# endif
-_GL_CXXALIAS_SYS (group_member, int, (gid_t gid));
-_GL_CXXALIASWARN (group_member);
-#elif defined GNULIB_POSIXCHECK
-# undef group_member
-# if HAVE_RAW_DECL_GROUP_MEMBER
-_GL_WARN_ON_USE (group_member, "group_member is unportable - "
-                 "use gnulib module group-member for portability");
-# endif
-#endif
-
-
-#if @GNULIB_ISATTY@
-# if @REPLACE_ISATTY@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef isatty
-#   define isatty rpl_isatty
-#  endif
-_GL_FUNCDECL_RPL (isatty, int, (int fd));
-_GL_CXXALIAS_RPL (isatty, int, (int fd));
-# else
-_GL_CXXALIAS_SYS (isatty, int, (int fd));
-# endif
-_GL_CXXALIASWARN (isatty);
-#elif defined GNULIB_POSIXCHECK
-# undef isatty
-# if HAVE_RAW_DECL_ISATTY
-_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - "
-                 "use gnulib module isatty for portability");
-# endif
-#endif
-
-
-#if @GNULIB_LCHOWN@
-/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
-   to GID (if GID is not -1).  Do not follow symbolic links.
-   Return 0 if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>.  */
-# if @REPLACE_LCHOWN@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef lchown
-#   define lchown rpl_lchown
-#  endif
-_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)
-                               _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group));
-# else
-#  if !@HAVE_LCHOWN@
-_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)
-                               _GL_ARG_NONNULL ((1)));
-#  endif
-_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group));
-# endif
-_GL_CXXALIASWARN (lchown);
-#elif defined GNULIB_POSIXCHECK
-# undef lchown
-# if HAVE_RAW_DECL_LCHOWN
-_GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - "
-                 "use gnulib module lchown for portability");
-# endif
-#endif
-
-
-#if @GNULIB_LINK@
-/* Create a new hard link for an existing file.
-   Return 0 if successful, otherwise -1 and errno set.
-   See POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>.  */
-# if @REPLACE_LINK@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define link rpl_link
-#  endif
-_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2)
-                             _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2));
-# else
-#  if !@HAVE_LINK@
-_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2)
-                             _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2));
-# endif
-_GL_CXXALIASWARN (link);
-#elif defined GNULIB_POSIXCHECK
-# undef link
-# if HAVE_RAW_DECL_LINK
-_GL_WARN_ON_USE (link, "link is unportable - "
-                 "use gnulib module link for portability");
-# endif
-#endif
-
-
-#if @GNULIB_LINKAT@
-/* Create a new hard link for an existing file, relative to two
-   directories.  FLAG controls whether symlinks are followed.
-   Return 0 if successful, otherwise -1 and errno set.  */
-# if @REPLACE_LINKAT@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef linkat
-#   define linkat rpl_linkat
-#  endif
-_GL_FUNCDECL_RPL (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag)
-                  _GL_ARG_NONNULL ((2, 4)));
-_GL_CXXALIAS_RPL (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag));
-# else
-#  if !@HAVE_LINKAT@
-_GL_FUNCDECL_SYS (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag)
-                  _GL_ARG_NONNULL ((2, 4)));
-#  endif
-_GL_CXXALIAS_SYS (linkat, int,
-                  (int fd1, const char *path1, int fd2, const char *path2,
-                   int flag));
-# endif
-_GL_CXXALIASWARN (linkat);
-#elif defined GNULIB_POSIXCHECK
-# undef linkat
-# if HAVE_RAW_DECL_LINKAT
-_GL_WARN_ON_USE (linkat, "linkat is unportable - "
-                 "use gnulib module linkat for portability");
-# endif
-#endif
-
-
-#if @GNULIB_LSEEK@
-/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
-   Return the new offset if successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>.  */
-# if @REPLACE_LSEEK@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define lseek rpl_lseek
-#  endif
-_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence));
-_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence));
-# else
-_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence));
-# endif
-_GL_CXXALIASWARN (lseek);
-#elif defined GNULIB_POSIXCHECK
-# undef lseek
-# if HAVE_RAW_DECL_LSEEK
-_GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some "
-                 "systems - use gnulib module lseek for portability");
-# endif
-#endif
-
-
-#if @GNULIB_PIPE@
-/* Create a pipe, defaulting to O_BINARY mode.
-   Store the read-end as fd[0] and the write-end as fd[1].
-   Return 0 upon success, or -1 with errno set upon failure.  */
-# if !@HAVE_PIPE@
-_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
-# endif
-_GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
-_GL_CXXALIASWARN (pipe);
-#elif defined GNULIB_POSIXCHECK
-# undef pipe
-# if HAVE_RAW_DECL_PIPE
-_GL_WARN_ON_USE (pipe, "pipe is unportable - "
-                 "use gnulib module pipe-posix for portability");
-# endif
-#endif
-
-
-#if @GNULIB_PIPE2@
-/* Create a pipe, applying the given flags when opening the read-end of the
-   pipe and the write-end of the pipe.
-   The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
-   and O_TEXT, O_BINARY (defined in "binary-io.h").
-   Store the read-end as fd[0] and the write-end as fd[1].
-   Return 0 upon success, or -1 with errno set upon failure.
-   See also the Linux man page at
-   <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>.  */
-# if @HAVE_PIPE2@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define pipe2 rpl_pipe2
-#  endif
-_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags));
-# else
-_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags));
-# endif
-_GL_CXXALIASWARN (pipe2);
-#elif defined GNULIB_POSIXCHECK
-# undef pipe2
-# if HAVE_RAW_DECL_PIPE2
-_GL_WARN_ON_USE (pipe2, "pipe2 is unportable - "
-                 "use gnulib module pipe2 for portability");
-# endif
-#endif
-
-
-#if @GNULIB_PREAD@
-/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
-   Return the number of bytes placed into BUF if successful, otherwise
-   set errno and return -1.  0 indicates EOF.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>.  */
-# if @REPLACE_PREAD@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef pread
-#   define pread rpl_pread
-#  endif
-_GL_FUNCDECL_RPL (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset));
-# else
-#  if !@HAVE_PREAD@
-_GL_FUNCDECL_SYS (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (pread, ssize_t,
-                  (int fd, void *buf, size_t bufsize, off_t offset));
-# endif
-_GL_CXXALIASWARN (pread);
-#elif defined GNULIB_POSIXCHECK
-# undef pread
-# if HAVE_RAW_DECL_PREAD
-_GL_WARN_ON_USE (pread, "pread is unportable - "
-                 "use gnulib module pread for portability");
-# endif
-#endif
-
-
-#if @GNULIB_PWRITE@
-/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
-   Return the number of bytes written if successful, otherwise
-   set errno and return -1.  0 indicates nothing written.  See the
-   POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>.  */
-# if @REPLACE_PWRITE@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef pwrite
-#   define pwrite rpl_pwrite
-#  endif
-_GL_FUNCDECL_RPL (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset));
-# else
-#  if !@HAVE_PWRITE@
-_GL_FUNCDECL_SYS (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset)
-                  _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (pwrite, ssize_t,
-                  (int fd, const void *buf, size_t bufsize, off_t offset));
-# endif
-_GL_CXXALIASWARN (pwrite);
-#elif defined GNULIB_POSIXCHECK
-# undef pwrite
-# if HAVE_RAW_DECL_PWRITE
-_GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
-                 "use gnulib module pwrite for portability");
-# endif
-#endif
-
-
-#if @GNULIB_READ@
-/* Read up to COUNT bytes from file descriptor FD into the buffer starting
-   at BUF.  See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>.  */
-# if @REPLACE_READ@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef read
-#   define read rpl_read
-#  endif
-_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count)
-                                 _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count));
-# else
-/* Need to cast, because on mingw, the third parameter is
-                                                          unsigned int count
-   and the return type is 'int'.  */
-_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count));
-# endif
-_GL_CXXALIASWARN (read);
-#endif
-
-
-#if @GNULIB_READLINK@
-/* Read the contents of the symbolic link FILE and place the first BUFSIZE
-   bytes of it into BUF.  Return the number of bytes placed into BUF if
-   successful, otherwise -1 and errno set.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>.  */
-# if @REPLACE_READLINK@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define readlink rpl_readlink
-#  endif
-_GL_FUNCDECL_RPL (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize)
-                  _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize));
-# else
-#  if !@HAVE_READLINK@
-_GL_FUNCDECL_SYS (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize)
-                  _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (readlink, ssize_t,
-                  (const char *file, char *buf, size_t bufsize));
-# endif
-_GL_CXXALIASWARN (readlink);
-#elif defined GNULIB_POSIXCHECK
-# undef readlink
-# if HAVE_RAW_DECL_READLINK
-_GL_WARN_ON_USE (readlink, "readlink is unportable - "
-                 "use gnulib module readlink for portability");
-# endif
-#endif
-
-
-#if @GNULIB_READLINKAT@
-# if !@HAVE_READLINKAT@
-_GL_FUNCDECL_SYS (readlinkat, ssize_t,
-                  (int fd, char const *file, char *buf, size_t len)
-                  _GL_ARG_NONNULL ((2, 3)));
-# endif
-_GL_CXXALIAS_SYS (readlinkat, ssize_t,
-                  (int fd, char const *file, char *buf, size_t len));
-_GL_CXXALIASWARN (readlinkat);
-#elif defined GNULIB_POSIXCHECK
-# undef readlinkat
-# if HAVE_RAW_DECL_READLINKAT
-_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - "
-                 "use gnulib module readlinkat for portability");
-# endif
-#endif
-
-
-#if @GNULIB_RMDIR@
-/* Remove the directory DIR.  */
-# if @REPLACE_RMDIR@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   define rmdir rpl_rmdir
-#  endif
-_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (rmdir, int, (char const *name));
-# else
-_GL_CXXALIAS_SYS (rmdir, int, (char const *name));
-# endif
-_GL_CXXALIASWARN (rmdir);
-#elif defined GNULIB_POSIXCHECK
-# undef rmdir
-# if HAVE_RAW_DECL_RMDIR
-_GL_WARN_ON_USE (rmdir, "rmdir is unportable - "
-                 "use gnulib module rmdir for portability");
-# endif
-#endif
-
-
-#if @GNULIB_SETHOSTNAME@
-/* Set the host name of the machine.
-   The host name may or may not be fully qualified.
-
-   Put LEN bytes of NAME into the host name.
-   Return 0 if successful, otherwise, set errno and return -1.
-
-   Platforms with no ability to set the hostname return -1 and set
-   errno = ENOSYS.  */
-# if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@
-_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
-                                    _GL_ARG_NONNULL ((1)));
-# endif
-/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5
-   and FreeBSD 6.4 the second parameter is int.  On Solaris 11
-   2011-10, the first parameter is not const.  */
-_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
-_GL_CXXALIASWARN (sethostname);
-#elif defined GNULIB_POSIXCHECK
-# undef sethostname
-# if HAVE_RAW_DECL_SETHOSTNAME
-_GL_WARN_ON_USE (sethostname, "sethostname is unportable - "
-                 "use gnulib module sethostname for portability");
-# endif
-#endif
-
-
-#if @GNULIB_SLEEP@
-/* Pause the execution of the current thread for N seconds.
-   Returns the number of seconds left to sleep.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>.  */
-# if @REPLACE_SLEEP@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef sleep
-#   define sleep rpl_sleep
-#  endif
-_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n));
-_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n));
-# else
-#  if !@HAVE_SLEEP@
-_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n));
-#  endif
-_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n));
-# endif
-_GL_CXXALIASWARN (sleep);
-#elif defined GNULIB_POSIXCHECK
-# undef sleep
-# if HAVE_RAW_DECL_SLEEP
-_GL_WARN_ON_USE (sleep, "sleep is unportable - "
-                 "use gnulib module sleep for portability");
-# endif
-#endif
-
-
-#if @GNULIB_SYMLINK@
-# if @REPLACE_SYMLINK@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef symlink
-#   define symlink rpl_symlink
-#  endif
-_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file)
-                                _GL_ARG_NONNULL ((1, 2)));
-_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file));
-# else
-#  if !@HAVE_SYMLINK@
-_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file)
-                                _GL_ARG_NONNULL ((1, 2)));
-#  endif
-_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file));
-# endif
-_GL_CXXALIASWARN (symlink);
-#elif defined GNULIB_POSIXCHECK
-# undef symlink
-# if HAVE_RAW_DECL_SYMLINK
-_GL_WARN_ON_USE (symlink, "symlink is not portable - "
-                 "use gnulib module symlink for portability");
-# endif
-#endif
-
-
-#if @GNULIB_SYMLINKAT@
-# if !@HAVE_SYMLINKAT@
-_GL_FUNCDECL_SYS (symlinkat, int,
-                  (char const *contents, int fd, char const *file)
-                  _GL_ARG_NONNULL ((1, 3)));
-# endif
-_GL_CXXALIAS_SYS (symlinkat, int,
-                  (char const *contents, int fd, char const *file));
-_GL_CXXALIASWARN (symlinkat);
-#elif defined GNULIB_POSIXCHECK
-# undef symlinkat
-# if HAVE_RAW_DECL_SYMLINKAT
-_GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - "
-                 "use gnulib module symlinkat for portability");
-# endif
-#endif
-
-
-#if @GNULIB_TTYNAME_R@
-/* Store at most BUFLEN characters of the pathname of the terminal FD is
-   open on in BUF.  Return 0 on success, otherwise an error number.  */
-# if @REPLACE_TTYNAME_R@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef ttyname_r
-#   define ttyname_r rpl_ttyname_r
-#  endif
-_GL_FUNCDECL_RPL (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen));
-# else
-#  if !@HAVE_DECL_TTYNAME_R@
-_GL_FUNCDECL_SYS (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (ttyname_r, int,
-                  (int fd, char *buf, size_t buflen));
-# endif
-_GL_CXXALIASWARN (ttyname_r);
-#elif defined GNULIB_POSIXCHECK
-# undef ttyname_r
-# if HAVE_RAW_DECL_TTYNAME_R
-_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
-                 "use gnulib module ttyname_r for portability");
-# endif
-#endif
-
-
-#if @GNULIB_UNLINK@
-# if @REPLACE_UNLINK@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef unlink
-#   define unlink rpl_unlink
-#  endif
-_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1)));
-_GL_CXXALIAS_RPL (unlink, int, (char const *file));
-# else
-_GL_CXXALIAS_SYS (unlink, int, (char const *file));
-# endif
-_GL_CXXALIASWARN (unlink);
-#elif defined GNULIB_POSIXCHECK
-# undef unlink
-# if HAVE_RAW_DECL_UNLINK
-_GL_WARN_ON_USE (unlink, "unlink is not portable - "
-                 "use gnulib module unlink for portability");
-# endif
-#endif
-
-
-#if @GNULIB_UNLINKAT@
-# if @REPLACE_UNLINKAT@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef unlinkat
-#   define unlinkat rpl_unlinkat
-#  endif
-_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag));
-# else
-#  if !@HAVE_UNLINKAT@
-_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag)
-                                 _GL_ARG_NONNULL ((2)));
-#  endif
-_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag));
-# endif
-_GL_CXXALIASWARN (unlinkat);
-#elif defined GNULIB_POSIXCHECK
-# undef unlinkat
-# if HAVE_RAW_DECL_UNLINKAT
-_GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
-                 "use gnulib module openat for portability");
-# endif
-#endif
-
-
-#if @GNULIB_USLEEP@
-/* Pause the execution of the current thread for N microseconds.
-   Returns 0 on completion, or -1 on range error.
-   See the POSIX:2001 specification
-   <http://www.opengroup.org/susv3xsh/usleep.html>.  */
-# if @REPLACE_USLEEP@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef usleep
-#   define usleep rpl_usleep
-#  endif
-_GL_FUNCDECL_RPL (usleep, int, (useconds_t n));
-_GL_CXXALIAS_RPL (usleep, int, (useconds_t n));
-# else
-#  if !@HAVE_USLEEP@
-_GL_FUNCDECL_SYS (usleep, int, (useconds_t n));
-#  endif
-_GL_CXXALIAS_SYS (usleep, int, (useconds_t n));
-# endif
-_GL_CXXALIASWARN (usleep);
-#elif defined GNULIB_POSIXCHECK
-# undef usleep
-# if HAVE_RAW_DECL_USLEEP
-_GL_WARN_ON_USE (usleep, "usleep is unportable - "
-                 "use gnulib module usleep for portability");
-# endif
-#endif
-
-
-#if @GNULIB_WRITE@
-/* Write up to COUNT bytes starting at BUF to file descriptor FD.
-   See the POSIX:2008 specification
-   <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>.  */
-# if @REPLACE_WRITE@
-#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
-#   undef write
-#   define write rpl_write
-#  endif
-_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count)
-                                  _GL_ARG_NONNULL ((2)));
-_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count));
-# else
-/* Need to cast, because on mingw, the third parameter is
-                                                             unsigned int count
-   and the return type is 'int'.  */
-_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count));
-# endif
-_GL_CXXALIASWARN (write);
-#endif
-
-_GL_INLINE_HEADER_END
-
-#endif /* _@GUARD_PREFIX@_UNISTD_H */
-#endif /* _GL_INCLUDING_UNISTD_H */
-#endif /* _@GUARD_PREFIX@_UNISTD_H */
diff --git a/lib/w32sock.h b/lib/w32sock.h
deleted file mode 100644
index b921b1bc..00000000
--- a/lib/w32sock.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/* w32sock.h --- internal auxiliary functions for Windows socket functions
-
-   Copyright (C) 2008-2014 Free Software Foundation, Inc.
-
-   This program is free software: you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-/* Written by Paolo Bonzini */
-
-#include <errno.h>
-
-/* Get O_RDWR and O_BINARY.  */
-#include <fcntl.h>
-
-/* Get _open_osfhandle().  */
-#include <io.h>
-
-/* Get _get_osfhandle().  */
-#include "msvc-nothrow.h"
-
-#define FD_TO_SOCKET(fd)   ((SOCKET) _get_osfhandle ((fd)))
-#define SOCKET_TO_FD(fh)   (_open_osfhandle ((intptr_t) (fh), O_RDWR | O_BINARY))
-
-static inline void
-set_winsock_errno (void)
-{
-  int err = WSAGetLastError ();
-
-  /* Map some WSAE* errors to the runtime library's error codes.  */
-  switch (err)
-    {
-    case WSA_INVALID_HANDLE:
-      errno = EBADF;
-      break;
-    case WSA_NOT_ENOUGH_MEMORY:
-      errno = ENOMEM;
-      break;
-    case WSA_INVALID_PARAMETER:
-      errno = EINVAL;
-      break;
-    case WSAENAMETOOLONG:
-      errno = ENAMETOOLONG;
-      break;
-    case WSAENOTEMPTY:
-      errno = ENOTEMPTY;
-      break;
-    case WSAEWOULDBLOCK:
-      errno = EWOULDBLOCK;
-      break;
-    case WSAEINPROGRESS:
-      errno = EINPROGRESS;
-      break;
-    case WSAEALREADY:
-      errno = EALREADY;
-      break;
-    case WSAENOTSOCK:
-      errno = ENOTSOCK;
-      break;
-    case WSAEDESTADDRREQ:
-      errno = EDESTADDRREQ;
-      break;
-    case WSAEMSGSIZE:
-      errno = EMSGSIZE;
-      break;
-    case WSAEPROTOTYPE:
-      errno = EPROTOTYPE;
-      break;
-    case WSAENOPROTOOPT:
-      errno = ENOPROTOOPT;
-      break;
-    case WSAEPROTONOSUPPORT:
-      errno = EPROTONOSUPPORT;
-      break;
-    case WSAEOPNOTSUPP:
-      errno = EOPNOTSUPP;
-      break;
-    case WSAEAFNOSUPPORT:
-      errno = EAFNOSUPPORT;
-      break;
-    case WSAEADDRINUSE:
-      errno = EADDRINUSE;
-      break;
-    case WSAEADDRNOTAVAIL:
-      errno = EADDRNOTAVAIL;
-      break;
-    case WSAENETDOWN:
-      errno = ENETDOWN;
-      break;
-    case WSAENETUNREACH:
-      errno = ENETUNREACH;
-      break;
-    case WSAENETRESET:
-      errno = ENETRESET;
-      break;
-    case WSAECONNABORTED:
-      errno = ECONNABORTED;
-      break;
-    case WSAECONNRESET:
-      errno = ECONNRESET;
-      break;
-    case WSAENOBUFS:
-      errno = ENOBUFS;
-      break;
-    case WSAEISCONN:
-      errno = EISCONN;
-      break;
-    case WSAENOTCONN:
-      errno = ENOTCONN;
-      break;
-    case WSAETIMEDOUT:
-      errno = ETIMEDOUT;
-      break;
-    case WSAECONNREFUSED:
-      errno = ECONNREFUSED;
-      break;
-    case WSAELOOP:
-      errno = ELOOP;
-      break;
-    case WSAEHOSTUNREACH:
-      errno = EHOSTUNREACH;
-      break;
-    default:
-      errno = (err > 10000 && err < 10025) ? err - 10000 : err;
-      break;
-    }
-}
diff --git a/libcrystfel/Makefile.am b/libcrystfel/Makefile.am
deleted file mode 100644
index 24cb7358..00000000
--- a/libcrystfel/Makefile.am
+++ /dev/null
@@ -1,41 +0,0 @@
-lib_LTLIBRARIES = libcrystfel.la
-libcrystfel_la_LIBADD = ../lib/libgnu.la @LIBCRYSTFEL_LIBS@ $(PTY_LIB)
-libcrystfel_la_LDFLAGS = -version-info 9:0:0
-
-libcrystfel_la_SOURCES = src/reflist.c src/utils.c src/cell.c src/detector.c \
-                         src/thread-pool.c src/image.c src/hdf5-file.c \
-                         src/geometry.c src/statistics.c \
-                         src/symmetry.c src/stream.c src/peaks.c \
-                         src/reflist-utils.c src/filters.c \
-                         src/render.c src/index.c src/dirax.c src/mosflm.c \
-                         src/cell-utils.c src/integer_matrix.c src/crystal.c \
-                         src/xds.c src/integration.c src/predict-refine.c \
-                         src/histogram.c src/events.c src/felix.c \
-                         src/taketwo.c src/peakfinder8.c
-
-if HAVE_FFTW
-libcrystfel_la_SOURCES += src/asdf.c
-endif
-
-libcrystfel_la_includedir=$(includedir)/crystfel/
-
-libcrystfel_la_include_HEADERS = ${top_srcdir}/version.h \
-                                 src/hdf5-file.h src/reflist.h src/symmetry.h \
-                                 src/cell.h src/reflist-utils.h \
-                                 src/thread-pool.h  src/statistics.h \
-                                 src/utils.h src/detector.h \
-                                 src/geometry.h src/peaks.h src/stream.h \
-                                 src/render.h src/index.h src/image.h \
-                                 src/filters.h src/dirax.h src/mosflm.h \
-                                 src/cell-utils.h \
-                                 src/integer_matrix.h src/crystal.h \
-                                 src/xds.h src/predict-refine.h \
-                                 src/integration.h src/histogram.h \
-                                 src/events.h src/asdf.h src/felix.h \
-                                 src/taketwo.h src/peakfinder8.h
-
-AM_CPPFLAGS = -DDATADIR=\""$(datadir)"\" -I$(top_builddir)/lib -Wall
-AM_CPPFLAGS += -I$(top_srcdir)/lib @LIBCRYSTFEL_CFLAGS@
-
-pkgconfigdir = $(libdir)/pkgconfig
-pkgconfig_DATA = crystfel.pc
diff --git a/m4/.gitignore b/m4/.gitignore
deleted file mode 100644
index be71f496..00000000
--- a/m4/.gitignore
+++ /dev/null
@@ -1,7 +0,0 @@
-gnulib-comp.m4
-gtk-doc.m4
-libtool.m4
-ltoptions.m4
-ltsugar.m4
-ltversion.m4
-lt~obsolete.m4
diff --git a/m4/00gnulib.m4 b/m4/00gnulib.m4
deleted file mode 100644
index 8eca5518..00000000
--- a/m4/00gnulib.m4
+++ /dev/null
@@ -1,46 +0,0 @@
-# 00gnulib.m4 serial 3
-dnl Copyright (C) 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl This file must be named something that sorts before all other
-dnl gnulib-provided .m4 files.  It is needed until such time as we can
-dnl assume Autoconf 2.64, with its improved AC_DEFUN_ONCE and
-dnl m4_divert semantics.
-
-# Until autoconf 2.63, handling of the diversion stack required m4_init
-# to be called first; but this does not happen with aclocal.  Wrapping
-# the entire execution in another layer of the diversion stack fixes this.
-# Worse, prior to autoconf 2.62, m4_wrap depended on the underlying m4
-# for whether it was FIFO or LIFO; in order to properly balance with
-# m4_init, we need to undo our push just before anything wrapped within
-# the m4_init body.  The way to ensure this is to wrap both sides of
-# m4_init with a one-shot macro that does the pop at the right time.
-m4_ifndef([_m4_divert_diversion],
-[m4_divert_push([KILL])
-m4_define([gl_divert_fixup], [m4_divert_pop()m4_define([$0])])
-m4_define([m4_init],
-  [gl_divert_fixup()]m4_defn([m4_init])[gl_divert_fixup()])])
-
-
-# AC_DEFUN_ONCE([NAME], VALUE)
-# ----------------------------
-# Define NAME to expand to VALUE on the first use (whether by direct
-# expansion, or by AC_REQUIRE), and to nothing on all subsequent uses.
-# Avoid bugs in AC_REQUIRE in Autoconf 2.63 and earlier.  This
-# definition is slower than the version in Autoconf 2.64, because it
-# can only use interfaces that existed since 2.59; but it achieves the
-# same effect.  Quoting is necessary to avoid confusing Automake.
-m4_version_prereq([2.63.263], [],
-[m4_define([AC][_DEFUN_ONCE],
-  [AC][_DEFUN([$1],
-    [AC_REQUIRE([_gl_DEFUN_ONCE([$1])],
-      [m4_indir([_gl_DEFUN_ONCE([$1])])])])]dnl
-[AC][_DEFUN([_gl_DEFUN_ONCE([$1])], [$2])])])
-
-# gl_00GNULIB
-# -----------
-# Witness macro that this file has been included.  Needed to force
-# Automake to include this file prior to all other gnulib .m4 files.
-AC_DEFUN([gl_00GNULIB])
diff --git a/m4/absolute-header.m4 b/m4/absolute-header.m4
deleted file mode 100644
index ce3e39e9..00000000
--- a/m4/absolute-header.m4
+++ /dev/null
@@ -1,102 +0,0 @@
-# absolute-header.m4 serial 16
-dnl Copyright (C) 2006-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Derek Price.
-
-# gl_ABSOLUTE_HEADER(HEADER1 HEADER2 ...)
-# ---------------------------------------
-# Find the absolute name of a header file, testing first if the header exists.
-# If the header were sys/inttypes.h, this macro would define
-# ABSOLUTE_SYS_INTTYPES_H to the '""' quoted absolute name of sys/inttypes.h
-# in config.h
-# (e.g. '#define ABSOLUTE_SYS_INTTYPES_H "///usr/include/sys/inttypes.h"').
-# The three "///" are to pacify Sun C 5.8, which otherwise would say
-# "warning: #include of /usr/include/... may be non-portable".
-# Use '""', not '<>', so that the /// cannot be confused with a C99 comment.
-# Note: This macro assumes that the header file is not empty after
-# preprocessing, i.e. it does not only define preprocessor macros but also
-# provides some type/enum definitions or function/variable declarations.
-AC_DEFUN([gl_ABSOLUTE_HEADER],
-[AC_REQUIRE([AC_CANONICAL_HOST])
-AC_LANG_PREPROC_REQUIRE()dnl
-dnl FIXME: gl_absolute_header and ac_header_exists must be used unquoted
-dnl until we can assume autoconf 2.64 or newer.
-m4_foreach_w([gl_HEADER_NAME], [$1],
-  [AS_VAR_PUSHDEF([gl_absolute_header],
-                  [gl_cv_absolute_]m4_defn([gl_HEADER_NAME]))dnl
-  AC_CACHE_CHECK([absolute name of <]m4_defn([gl_HEADER_NAME])[>],
-    m4_defn([gl_absolute_header]),
-    [AS_VAR_PUSHDEF([ac_header_exists],
-                    [ac_cv_header_]m4_defn([gl_HEADER_NAME]))dnl
-    AC_CHECK_HEADERS_ONCE(m4_defn([gl_HEADER_NAME]))dnl
-    if test AS_VAR_GET(ac_header_exists) = yes; then
-      gl_ABSOLUTE_HEADER_ONE(m4_defn([gl_HEADER_NAME]))
-    fi
-    AS_VAR_POPDEF([ac_header_exists])dnl
-    ])dnl
-  AC_DEFINE_UNQUOTED(AS_TR_CPP([ABSOLUTE_]m4_defn([gl_HEADER_NAME])),
-                     ["AS_VAR_GET(gl_absolute_header)"],
-                     [Define this to an absolute name of <]m4_defn([gl_HEADER_NAME])[>.])
-  AS_VAR_POPDEF([gl_absolute_header])dnl
-])dnl
-])# gl_ABSOLUTE_HEADER
-
-# gl_ABSOLUTE_HEADER_ONE(HEADER)
-# ------------------------------
-# Like gl_ABSOLUTE_HEADER, except that:
-#   - it assumes that the header exists,
-#   - it uses the current CPPFLAGS,
-#   - it does not cache the result,
-#   - it is silent.
-AC_DEFUN([gl_ABSOLUTE_HEADER_ONE],
-[
-  AC_REQUIRE([AC_CANONICAL_HOST])
-  AC_LANG_CONFTEST([AC_LANG_SOURCE([[#include <]]m4_dquote([$1])[[>]])])
-  dnl AIX "xlc -E" and "cc -E" omit #line directives for header files
-  dnl that contain only a #include of other header files and no
-  dnl non-comment tokens of their own. This leads to a failure to
-  dnl detect the absolute name of <dirent.h>, <signal.h>, <poll.h>
-  dnl and others. The workaround is to force preservation of comments
-  dnl through option -C. This ensures all necessary #line directives
-  dnl are present. GCC supports option -C as well.
-  case "$host_os" in
-    aix*) gl_absname_cpp="$ac_cpp -C" ;;
-    *)    gl_absname_cpp="$ac_cpp" ;;
-  esac
-changequote(,)
-  case "$host_os" in
-    mingw*)
-      dnl For the sake of native Windows compilers (excluding gcc),
-      dnl treat backslash as a directory separator, like /.
-      dnl Actually, these compilers use a double-backslash as
-      dnl directory separator, inside the
-      dnl   # line "filename"
-      dnl directives.
-      gl_dirsep_regex='[/\\]'
-      ;;
-    *)
-      gl_dirsep_regex='\/'
-      ;;
-  esac
-  dnl A sed expression that turns a string into a basic regular
-  dnl expression, for use within "/.../".
-  gl_make_literal_regex_sed='s,[]$^\\.*/[],\\&,g'
-  gl_header_literal_regex=`echo '$1' \
-                           | sed -e "$gl_make_literal_regex_sed"`
-  gl_absolute_header_sed="/${gl_dirsep_regex}${gl_header_literal_regex}/"'{
-      s/.*"\(.*'"${gl_dirsep_regex}${gl_header_literal_regex}"'\)".*/\1/
-      s|^/[^/]|//&|
-      p
-      q
-    }'
-changequote([,])
-  dnl eval is necessary to expand gl_absname_cpp.
-  dnl Ultrix and Pyramid sh refuse to redirect output of eval,
-  dnl so use subshell.
-  AS_VAR_SET([gl_cv_absolute_]AS_TR_SH([[$1]]),
-[`(eval "$gl_absname_cpp conftest.$ac_ext") 2>&AS_MESSAGE_LOG_FD |
-  sed -n "$gl_absolute_header_sed"`])
-])
diff --git a/m4/ax_with_curses.m4 b/m4/ax_with_curses.m4
deleted file mode 100644
index 33a37ac9..00000000
--- a/m4/ax_with_curses.m4
+++ /dev/null
@@ -1,518 +0,0 @@
-# ===========================================================================
-#      http://www.gnu.org/software/autoconf-archive/ax_with_curses.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_WITH_CURSES
-#
-# DESCRIPTION
-#
-#   This macro checks whether a SysV or X/Open-compatible Curses library is
-#   present, along with the associated header file.  The NcursesW
-#   (wide-character) library is searched for first, followed by Ncurses,
-#   then the system-default plain Curses.  The first library found is the
-#   one returned.
-#
-#   The following options are understood: --with-ncursesw, --with-ncurses,
-#   --without-ncursesw, --without-ncurses.  The "--with" options force the
-#   macro to use that particular library, terminating with an error if not
-#   found.  The "--without" options simply skip the check for that library.
-#   The effect on the search pattern is:
-#
-#     (no options)                           - NcursesW, Ncurses, Curses
-#     --with-ncurses     --with-ncursesw     - NcursesW only [*]
-#     --without-ncurses  --with-ncursesw     - NcursesW only [*]
-#                        --with-ncursesw     - NcursesW only [*]
-#     --with-ncurses     --without-ncursesw  - Ncurses only [*]
-#     --with-ncurses                         - NcursesW, Ncurses [**]
-#     --without-ncurses  --without-ncursesw  - Curses only
-#                        --without-ncursesw  - Ncurses, Curses
-#     --without-ncurses                      - NcursesW, Curses
-#
-#   [*]  If the library is not found, abort the configure script.
-#
-#   [**] If the second library (Ncurses) is not found, abort configure.
-#
-#   The following preprocessor symbols may be defined by this macro if the
-#   appropriate conditions are met:
-#
-#     HAVE_CURSES             - if any SysV or X/Open Curses library found
-#     HAVE_CURSES_ENHANCED    - if library supports X/Open Enhanced functions
-#     HAVE_CURSES_COLOR       - if library supports color (enhanced functions)
-#     HAVE_CURSES_OBSOLETE    - if library supports certain obsolete features
-#     HAVE_NCURSESW           - if NcursesW (wide char) library is to be used
-#     HAVE_NCURSES            - if the Ncurses library is to be used
-#
-#     HAVE_CURSES_H           - if <curses.h> is present and should be used
-#     HAVE_NCURSESW_H         - if <ncursesw.h> should be used
-#     HAVE_NCURSES_H          - if <ncurses.h> should be used
-#     HAVE_NCURSESW_CURSES_H  - if <ncursesw/curses.h> should be used
-#     HAVE_NCURSES_CURSES_H   - if <ncurses/curses.h> should be used
-#
-#   (These preprocessor symbols are discussed later in this document.)
-#
-#   The following output variable is defined by this macro; it is precious
-#   and may be overridden on the ./configure command line:
-#
-#     CURSES_LIB  - library to add to xxx_LDADD
-#
-#   The library listed in CURSES_LIB is NOT added to LIBS by default. You
-#   need to add CURSES_LIB to the appropriate xxx_LDADD line in your
-#   Makefile.am.  For example:
-#
-#     prog_LDADD = @CURSES_LIB@
-#
-#   If CURSES_LIB is set on the configure command line (such as by running
-#   "./configure CURSES_LIB=-lmycurses"), then the only header searched for
-#   is <curses.h>.  The user may use the CPPFLAGS precious variable to
-#   override the standard #include search path.  If the user needs to
-#   specify an alternative path for a library (such as for a non-standard
-#   NcurseW), the user should use the LDFLAGS variable.
-#
-#   The following shell variables may be defined by this macro:
-#
-#     ax_cv_curses           - set to "yes" if any Curses library found
-#     ax_cv_curses_enhanced  - set to "yes" if Enhanced functions present
-#     ax_cv_curses_color     - set to "yes" if color functions present
-#     ax_cv_curses_obsolete  - set to "yes" if obsolete features present
-#
-#     ax_cv_ncursesw      - set to "yes" if NcursesW library found
-#     ax_cv_ncurses       - set to "yes" if Ncurses library found
-#     ax_cv_plaincurses   - set to "yes" if plain Curses library found
-#     ax_cv_curses_which  - set to "ncursesw", "ncurses", "plaincurses" or "no"
-#
-#   These variables can be used in your configure.ac to determine the level
-#   of support you need from the Curses library.  For example, if you must
-#   have either Ncurses or NcursesW, you could include:
-#
-#     AX_WITH_CURSES
-#     if test "x$ax_cv_ncursesw" != xyes && test "x$ax_cv_ncurses" != xyes; then
-#         AX_MSG_ERROR([requires either NcursesW or Ncurses library])
-#     fi
-#
-#   If any Curses library will do (but one must be present and must support
-#   color), you could use:
-#
-#     AX_WITH_CURSES
-#     if test "x$ax_cv_curses" != xyes || test "x$ax_cv_curses_color" != xyes; then
-#         AC_MSG_ERROR([requires an X/Open-compatible Curses library with color])
-#     fi
-#
-#   Certain preprocessor symbols and shell variables defined by this macro
-#   can be used to determine various features of the Curses library.  In
-#   particular, HAVE_CURSES and ax_cv_curses are defined if the Curses
-#   library found conforms to the traditional SysV and/or X/Open Base Curses
-#   definition.  Any working Curses library conforms to this level.
-#
-#   HAVE_CURSES_ENHANCED and ax_cv_curses_enhanced are defined if the
-#   library supports the X/Open Enhanced Curses definition.  In particular,
-#   the wide-character types attr_t, cchar_t and wint_t, the functions
-#   wattr_set() and wget_wch() and the macros WA_NORMAL and _XOPEN_CURSES
-#   are checked.  The Ncurses library does NOT conform to this definition,
-#   although NcursesW does.
-#
-#   HAVE_CURSES_COLOR and ax_cv_curses_color are defined if the library
-#   supports color functions and macros such as COLOR_PAIR, A_COLOR,
-#   COLOR_WHITE, COLOR_RED and init_pair().  These are NOT part of the
-#   X/Open Base Curses definition, but are part of the Enhanced set of
-#   functions.  The Ncurses library DOES support these functions, as does
-#   NcursesW.
-#
-#   HAVE_CURSES_OBSOLETE and ax_cv_curses_obsolete are defined if the
-#   library supports certain features present in SysV and BSD Curses but not
-#   defined in the X/Open definition.  In particular, the functions
-#   getattrs(), getcurx() and getmaxx() are checked.
-#
-#   To use the HAVE_xxx_H preprocessor symbols, insert the following into
-#   your system.h (or equivalent) header file:
-#
-#     #if defined HAVE_NCURSESW_CURSES_H
-#     #  include <ncursesw/curses.h>
-#     #elif defined HAVE_NCURSESW_H
-#     #  include <ncursesw.h>
-#     #elif defined HAVE_NCURSES_CURSES_H
-#     #  include <ncurses/curses.h>
-#     #elif defined HAVE_NCURSES_H
-#     #  include <ncurses.h>
-#     #elif defined HAVE_CURSES_H
-#     #  include <curses.h>
-#     #else
-#     #  error "SysV or X/Open-compatible Curses header file required"
-#     #endif
-#
-#   For previous users of this macro: you should not need to change anything
-#   in your configure.ac or Makefile.am, as the previous (serial 10)
-#   semantics are still valid.  However, you should update your system.h (or
-#   equivalent) header file to the fragment shown above. You are encouraged
-#   also to make use of the extended functionality provided by this version
-#   of AX_WITH_CURSES, as well as in the additional macros
-#   AX_WITH_CURSES_PANEL, AX_WITH_CURSES_MENU and AX_WITH_CURSES_FORM.
-#
-# LICENSE
-#
-#   Copyright (c) 2009 Mark Pulford <mark@kyne.com.au>
-#   Copyright (c) 2009 Damian Pietras <daper@daper.net>
-#   Copyright (c) 2012 Reuben Thomas <rrt@sc3d.org>
-#   Copyright (c) 2011 John Zaitseff <J.Zaitseff@zap.org.au>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 13
-
-AU_ALIAS([MP_WITH_CURSES], [AX_WITH_CURSES])
-AC_DEFUN([AX_WITH_CURSES], [
-    AC_ARG_VAR([CURSES_LIB], [linker library for Curses, e.g. -lcurses])
-    AC_ARG_WITH([ncurses], [AS_HELP_STRING([--with-ncurses],
-        [force the use of Ncurses or NcursesW])],
-        [], [with_ncurses=check])
-    AC_ARG_WITH([ncursesw], [AS_HELP_STRING([--without-ncursesw],
-        [do not use NcursesW (wide character support)])],
-        [], [with_ncursesw=check])
-
-    ax_saved_LIBS=$LIBS
-    AS_IF([test "x$with_ncurses" = xyes || test "x$with_ncursesw" = xyes],
-        [ax_with_plaincurses=no], [ax_with_plaincurses=check])
-
-    ax_cv_curses_which=no
-
-    # Test for NcursesW
-
-    AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncursesw" != xno], [
-        LIBS="$ax_saved_LIBS -lncursesw"
-
-        AC_CACHE_CHECK([for NcursesW wide-character library], [ax_cv_ncursesw], [
-            AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
-                [ax_cv_ncursesw=yes], [ax_cv_ncursesw=no])
-        ])
-        AS_IF([test "x$ax_cv_ncursesw" = xno && test "x$with_ncursesw" = xyes], [
-            AC_MSG_ERROR([--with-ncursesw specified but could not find NcursesW library])
-        ])
-
-        AS_IF([test "x$ax_cv_ncursesw" = xyes], [
-            ax_cv_curses=yes
-            ax_cv_curses_which=ncursesw
-            CURSES_LIB="-lncursesw"
-            AC_DEFINE([HAVE_NCURSESW], [1], [Define to 1 if the NcursesW library is present])
-            AC_DEFINE([HAVE_CURSES],   [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
-
-            AC_CACHE_CHECK([for working ncursesw/curses.h], [ax_cv_header_ncursesw_curses_h], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@define _XOPEN_SOURCE_EXTENDED 1
-                        @%:@include <ncursesw/curses.h>
-                    ]], [[
-                        chtype a = A_BOLD;
-                        int b = KEY_LEFT;
-                        chtype c = COLOR_PAIR(1) & A_COLOR;
-                        attr_t d = WA_NORMAL;
-                        cchar_t e;
-                        wint_t f;
-                        int g = getattrs(stdscr);
-                        int h = getcurx(stdscr) + getmaxx(stdscr);
-                        initscr();
-                        init_pair(1, COLOR_WHITE, COLOR_RED);
-                        wattr_set(stdscr, d, 0, NULL);
-                        wget_wch(stdscr, &f);
-                    ]])],
-                    [ax_cv_header_ncursesw_curses_h=yes],
-                    [ax_cv_header_ncursesw_curses_h=no])
-            ])
-            AS_IF([test "x$ax_cv_header_ncursesw_curses_h" = xyes], [
-                ax_cv_curses_enhanced=yes
-                ax_cv_curses_color=yes
-                ax_cv_curses_obsolete=yes
-                AC_DEFINE([HAVE_CURSES_ENHANCED],   [1], [Define to 1 if library supports X/Open Enhanced functions])
-                AC_DEFINE([HAVE_CURSES_COLOR],      [1], [Define to 1 if library supports color (enhanced functions)])
-                AC_DEFINE([HAVE_CURSES_OBSOLETE],   [1], [Define to 1 if library supports certain obsolete features])
-                AC_DEFINE([HAVE_NCURSESW_CURSES_H], [1], [Define to 1 if <ncursesw/curses.h> is present])
-            ])
-
-            AC_CACHE_CHECK([for working ncursesw.h], [ax_cv_header_ncursesw_h], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@define _XOPEN_SOURCE_EXTENDED 1
-                        @%:@include <ncursesw.h>
-                    ]], [[
-                        chtype a = A_BOLD;
-                        int b = KEY_LEFT;
-                        chtype c = COLOR_PAIR(1) & A_COLOR;
-                        attr_t d = WA_NORMAL;
-                        cchar_t e;
-                        wint_t f;
-                        int g = getattrs(stdscr);
-                        int h = getcurx(stdscr) + getmaxx(stdscr);
-                        initscr();
-                        init_pair(1, COLOR_WHITE, COLOR_RED);
-                        wattr_set(stdscr, d, 0, NULL);
-                        wget_wch(stdscr, &f);
-                    ]])],
-                    [ax_cv_header_ncursesw_h=yes],
-                    [ax_cv_header_ncursesw_h=no])
-            ])
-            AS_IF([test "x$ax_cv_header_ncursesw_h" = xyes], [
-                ax_cv_curses_enhanced=yes
-                ax_cv_curses_color=yes
-                ax_cv_curses_obsolete=yes
-                AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
-                AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
-                AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
-                AC_DEFINE([HAVE_NCURSESW_H],      [1], [Define to 1 if <ncursesw.h> is present])
-            ])
-
-            AC_CACHE_CHECK([for working ncurses.h], [ax_cv_header_ncurses_h_with_ncursesw], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@define _XOPEN_SOURCE_EXTENDED 1
-                        @%:@include <ncurses.h>
-                    ]], [[
-                        chtype a = A_BOLD;
-                        int b = KEY_LEFT;
-                        chtype c = COLOR_PAIR(1) & A_COLOR;
-                        attr_t d = WA_NORMAL;
-                        cchar_t e;
-                        wint_t f;
-                        int g = getattrs(stdscr);
-                        int h = getcurx(stdscr) + getmaxx(stdscr);
-                        initscr();
-                        init_pair(1, COLOR_WHITE, COLOR_RED);
-                        wattr_set(stdscr, d, 0, NULL);
-                        wget_wch(stdscr, &f);
-                    ]])],
-                    [ax_cv_header_ncurses_h_with_ncursesw=yes],
-                    [ax_cv_header_ncurses_h_with_ncursesw=no])
-            ])
-            AS_IF([test "x$ax_cv_header_ncurses_h_with_ncursesw" = xyes], [
-                ax_cv_curses_enhanced=yes
-                ax_cv_curses_color=yes
-                ax_cv_curses_obsolete=yes
-                AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
-                AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
-                AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
-                AC_DEFINE([HAVE_NCURSES_H],       [1], [Define to 1 if <ncurses.h> is present])
-            ])
-
-            AS_IF([test "x$ax_cv_header_ncursesw_curses_h" = xno && test "x$ax_cv_header_ncursesw_h" = xno && test "x$ax_cv_header_ncurses_h_with_ncursesw" = xno], [
-                AC_MSG_WARN([could not find a working ncursesw/curses.h, ncursesw.h or ncurses.h])
-            ])
-        ])
-    ])
-
-    # Test for Ncurses
-
-    AS_IF([test "x$CURSES_LIB" = x && test "x$with_ncurses" != xno && test "x$ax_cv_curses_which" = xno], [
-        LIBS="$ax_saved_LIBS -lncurses"
-
-        AC_CACHE_CHECK([for Ncurses library], [ax_cv_ncurses], [
-            AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
-                [ax_cv_ncurses=yes], [ax_cv_ncurses=no])
-        ])
-        AS_IF([test "x$ax_cv_ncurses" = xno && test "x$with_ncurses" = xyes], [
-            AC_MSG_ERROR([--with-ncurses specified but could not find Ncurses library])
-        ])
-
-        AS_IF([test "x$ax_cv_ncurses" = xyes], [
-            ax_cv_curses=yes
-            ax_cv_curses_which=ncurses
-            CURSES_LIB="-lncurses"
-            AC_DEFINE([HAVE_NCURSES], [1], [Define to 1 if the Ncurses library is present])
-            AC_DEFINE([HAVE_CURSES],  [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
-
-            AC_CACHE_CHECK([for working ncurses/curses.h], [ax_cv_header_ncurses_curses_h], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@include <ncurses/curses.h>
-                    ]], [[
-                        chtype a = A_BOLD;
-                        int b = KEY_LEFT;
-                        chtype c = COLOR_PAIR(1) & A_COLOR;
-                        int g = getattrs(stdscr);
-                        int h = getcurx(stdscr) + getmaxx(stdscr);
-                        initscr();
-                        init_pair(1, COLOR_WHITE, COLOR_RED);
-                    ]])],
-                    [ax_cv_header_ncurses_curses_h=yes],
-                    [ax_cv_header_ncurses_curses_h=no])
-            ])
-            AS_IF([test "x$ax_cv_header_ncurses_curses_h" = xyes], [
-                ax_cv_curses_color=yes
-                ax_cv_curses_obsolete=yes
-                AC_DEFINE([HAVE_CURSES_COLOR],     [1], [Define to 1 if library supports color (enhanced functions)])
-                AC_DEFINE([HAVE_CURSES_OBSOLETE],  [1], [Define to 1 if library supports certain obsolete features])
-                AC_DEFINE([HAVE_NCURSES_CURSES_H], [1], [Define to 1 if <ncurses/curses.h> is present])
-            ])
-
-            AC_CACHE_CHECK([for working ncurses.h], [ax_cv_header_ncurses_h], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@include <ncurses.h>
-                    ]], [[
-                        chtype a = A_BOLD;
-                        int b = KEY_LEFT;
-                        chtype c = COLOR_PAIR(1) & A_COLOR;
-                        int g = getattrs(stdscr);
-                        int h = getcurx(stdscr) + getmaxx(stdscr);
-                        initscr();
-                        init_pair(1, COLOR_WHITE, COLOR_RED);
-                    ]])],
-                    [ax_cv_header_ncurses_h=yes],
-                    [ax_cv_header_ncurses_h=no])
-            ])
-            AS_IF([test "x$ax_cv_header_ncurses_h" = xyes], [
-                ax_cv_curses_color=yes
-                ax_cv_curses_obsolete=yes
-                AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
-                AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
-                AC_DEFINE([HAVE_NCURSES_H],       [1], [Define to 1 if <ncurses.h> is present])
-            ])
-
-            AS_IF([test "x$ax_cv_header_ncurses_curses_h" = xno && test "x$ax_cv_header_ncurses_h" = xno], [
-                AC_MSG_WARN([could not find a working ncurses/curses.h or ncurses.h])
-            ])
-        ])
-    ])
-
-    # Test for plain Curses (or if CURSES_LIB was set by user)
-
-    AS_IF([test "x$with_plaincurses" != xno && test "x$ax_cv_curses_which" = xno], [
-        AS_IF([test "x$CURSES_LIB" != x], [
-            LIBS="$ax_saved_LIBS $CURSES_LIB"
-        ], [
-            LIBS="$ax_saved_LIBS -lcurses"
-        ])
-
-        AC_CACHE_CHECK([for Curses library], [ax_cv_plaincurses], [
-            AC_LINK_IFELSE([AC_LANG_CALL([], [initscr])],
-                [ax_cv_plaincurses=yes], [ax_cv_plaincurses=no])
-        ])
-
-        AS_IF([test "x$ax_cv_plaincurses" = xyes], [
-            ax_cv_curses=yes
-            ax_cv_curses_which=plaincurses
-            AS_IF([test "x$CURSES_LIB" = x], [
-                CURSES_LIB="-lcurses"
-            ])
-            AC_DEFINE([HAVE_CURSES], [1], [Define to 1 if a SysV or X/Open compatible Curses library is present])
-
-            # Check for base conformance (and header file)
-
-            AC_CACHE_CHECK([for working curses.h], [ax_cv_header_curses_h], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@include <curses.h>
-                    ]], [[
-                        chtype a = A_BOLD;
-                        int b = KEY_LEFT;
-                        initscr();
-                    ]])],
-                    [ax_cv_header_curses_h=yes],
-                    [ax_cv_header_curses_h=no])
-            ])
-            AS_IF([test "x$ax_cv_header_curses_h" = xyes], [
-                AC_DEFINE([HAVE_CURSES_H], [1], [Define to 1 if <curses.h> is present])
-
-                # Check for X/Open Enhanced conformance
-
-                AC_CACHE_CHECK([for X/Open Enhanced Curses conformance], [ax_cv_plaincurses_enhanced], [
-                    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                            @%:@define _XOPEN_SOURCE_EXTENDED 1
-                            @%:@include <curses.h>
-                            @%:@ifndef _XOPEN_CURSES
-                            @%:@error "this Curses library is not enhanced"
-                            "this Curses library is not enhanced"
-                            @%:@endif
-                        ]], [[
-                            chtype a = A_BOLD;
-                            int b = KEY_LEFT;
-                            chtype c = COLOR_PAIR(1) & A_COLOR;
-                            attr_t d = WA_NORMAL;
-                            cchar_t e;
-                            wint_t f;
-                            initscr();
-                            init_pair(1, COLOR_WHITE, COLOR_RED);
-                            wattr_set(stdscr, d, 0, NULL);
-                            wget_wch(stdscr, &f);
-                        ]])],
-                        [ax_cv_plaincurses_enhanced=yes],
-                        [ax_cv_plaincurses_enhanced=no])
-                ])
-                AS_IF([test "x$ax_cv_plaincurses_enhanced" = xyes], [
-                    ax_cv_curses_enhanced=yes
-                    ax_cv_curses_color=yes
-                    AC_DEFINE([HAVE_CURSES_ENHANCED], [1], [Define to 1 if library supports X/Open Enhanced functions])
-                    AC_DEFINE([HAVE_CURSES_COLOR],    [1], [Define to 1 if library supports color (enhanced functions)])
-                ])
-
-                # Check for color functions
-
-                AC_CACHE_CHECK([for Curses color functions], [ax_cv_plaincurses_color], [
-                    AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@define _XOPEN_SOURCE_EXTENDED 1
-                        @%:@include <curses.h>
-                        ]], [[
-                            chtype a = A_BOLD;
-                            int b = KEY_LEFT;
-                            chtype c = COLOR_PAIR(1) & A_COLOR;
-                            initscr();
-                            init_pair(1, COLOR_WHITE, COLOR_RED);
-                        ]])],
-                        [ax_cv_plaincurses_color=yes],
-                        [ax_cv_plaincurses_color=no])
-                ])
-                AS_IF([test "x$ax_cv_plaincurses_color" = xyes], [
-                    ax_cv_curses_color=yes
-                    AC_DEFINE([HAVE_CURSES_COLOR], [1], [Define to 1 if library supports color (enhanced functions)])
-                ])
-
-                # Check for obsolete functions
-
-                AC_CACHE_CHECK([for obsolete Curses functions], [ax_cv_plaincurses_obsolete], [
-                AC_LINK_IFELSE([AC_LANG_PROGRAM([[
-                        @%:@include <curses.h>
-                    ]], [[
-                        chtype a = A_BOLD;
-                        int b = KEY_LEFT;
-                        int g = getattrs(stdscr);
-                        int h = getcurx(stdscr) + getmaxx(stdscr);
-                        initscr();
-                    ]])],
-                    [ax_cv_plaincurses_obsolete=yes],
-                    [ax_cv_plaincurses_obsolete=no])
-                ])
-                AS_IF([test "x$ax_cv_plaincurses_obsolete" = xyes], [
-                    ax_cv_curses_obsolete=yes
-                    AC_DEFINE([HAVE_CURSES_OBSOLETE], [1], [Define to 1 if library supports certain obsolete features])
-                ])
-            ])
-
-            AS_IF([test "x$ax_cv_header_curses_h" = xno], [
-                AC_MSG_WARN([could not find a working curses.h])
-            ])
-        ])
-    ])
-
-    AS_IF([test "x$ax_cv_curses"          != xyes], [ax_cv_curses=no])
-    AS_IF([test "x$ax_cv_curses_enhanced" != xyes], [ax_cv_curses_enhanced=no])
-    AS_IF([test "x$ax_cv_curses_color"    != xyes], [ax_cv_curses_color=no])
-    AS_IF([test "x$ax_cv_curses_obsolete" != xyes], [ax_cv_curses_obsolete=no])
-
-    LIBS=$ax_saved_LIBS
-])dnl
diff --git a/m4/errno_h.m4 b/m4/errno_h.m4
deleted file mode 100644
index 4ee9e6a1..00000000
--- a/m4/errno_h.m4
+++ /dev/null
@@ -1,137 +0,0 @@
-# errno_h.m4 serial 12
-dnl Copyright (C) 2004, 2006, 2008-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN_ONCE([gl_HEADER_ERRNO_H],
-[
-  AC_REQUIRE([AC_PROG_CC])
-  AC_CACHE_CHECK([for complete errno.h], [gl_cv_header_errno_h_complete], [
-    AC_EGREP_CPP([booboo],[
-#include <errno.h>
-#if !defined ETXTBSY
-booboo
-#endif
-#if !defined ENOMSG
-booboo
-#endif
-#if !defined EIDRM
-booboo
-#endif
-#if !defined ENOLINK
-booboo
-#endif
-#if !defined EPROTO
-booboo
-#endif
-#if !defined EMULTIHOP
-booboo
-#endif
-#if !defined EBADMSG
-booboo
-#endif
-#if !defined EOVERFLOW
-booboo
-#endif
-#if !defined ENOTSUP
-booboo
-#endif
-#if !defined ENETRESET
-booboo
-#endif
-#if !defined ECONNABORTED
-booboo
-#endif
-#if !defined ESTALE
-booboo
-#endif
-#if !defined EDQUOT
-booboo
-#endif
-#if !defined ECANCELED
-booboo
-#endif
-#if !defined EOWNERDEAD
-booboo
-#endif
-#if !defined ENOTRECOVERABLE
-booboo
-#endif
-#if !defined EILSEQ
-booboo
-#endif
-      ],
-      [gl_cv_header_errno_h_complete=no],
-      [gl_cv_header_errno_h_complete=yes])
-  ])
-  if test $gl_cv_header_errno_h_complete = yes; then
-    ERRNO_H=''
-  else
-    gl_NEXT_HEADERS([errno.h])
-    ERRNO_H='errno.h'
-  fi
-  AC_SUBST([ERRNO_H])
-  AM_CONDITIONAL([GL_GENERATE_ERRNO_H], [test -n "$ERRNO_H"])
-  gl_REPLACE_ERRNO_VALUE([EMULTIHOP])
-  gl_REPLACE_ERRNO_VALUE([ENOLINK])
-  gl_REPLACE_ERRNO_VALUE([EOVERFLOW])
-])
-
-# Assuming $1 = EOVERFLOW.
-# The EOVERFLOW errno value ought to be defined in <errno.h>, according to
-# POSIX.  But some systems (like OpenBSD 4.0 or AIX 3) don't define it, and
-# some systems (like OSF/1) define it when _XOPEN_SOURCE_EXTENDED is defined.
-# Check for the value of EOVERFLOW.
-# Set the variables EOVERFLOW_HIDDEN and EOVERFLOW_VALUE.
-AC_DEFUN([gl_REPLACE_ERRNO_VALUE],
-[
-  if test -n "$ERRNO_H"; then
-    AC_CACHE_CHECK([for ]$1[ value], [gl_cv_header_errno_h_]$1, [
-      AC_EGREP_CPP([yes],[
-#include <errno.h>
-#ifdef ]$1[
-yes
-#endif
-      ],
-      [gl_cv_header_errno_h_]$1[=yes],
-      [gl_cv_header_errno_h_]$1[=no])
-      if test $gl_cv_header_errno_h_]$1[ = no; then
-        AC_EGREP_CPP([yes],[
-#define _XOPEN_SOURCE_EXTENDED 1
-#include <errno.h>
-#ifdef ]$1[
-yes
-#endif
-          ], [gl_cv_header_errno_h_]$1[=hidden])
-        if test $gl_cv_header_errno_h_]$1[ = hidden; then
-          dnl The macro exists but is hidden.
-          dnl Define it to the same value.
-          AC_COMPUTE_INT([gl_cv_header_errno_h_]$1, $1, [
-#define _XOPEN_SOURCE_EXTENDED 1
-#include <errno.h>
-/* The following two lines are a workaround against an autoconf-2.52 bug.  */
-#include <stdio.h>
-#include <stdlib.h>
-])
-        fi
-      fi
-    ])
-    case $gl_cv_header_errno_h_]$1[ in
-      yes | no)
-        ]$1[_HIDDEN=0; ]$1[_VALUE=
-        ;;
-      *)
-        ]$1[_HIDDEN=1; ]$1[_VALUE="$gl_cv_header_errno_h_]$1["
-        ;;
-    esac
-    AC_SUBST($1[_HIDDEN])
-    AC_SUBST($1[_VALUE])
-  fi
-])
-
-dnl Autoconf >= 2.61 has AC_COMPUTE_INT built-in.
-dnl Remove this when we can assume autoconf >= 2.61.
-m4_ifdef([AC_COMPUTE_INT], [], [
-  AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])])
-])
diff --git a/m4/extensions.m4 b/m4/extensions.m4
deleted file mode 100644
index 37f55ca3..00000000
--- a/m4/extensions.m4
+++ /dev/null
@@ -1,138 +0,0 @@
-# serial 13  -*- Autoconf -*-
-# Enable extensions on systems that normally disable them.
-
-# Copyright (C) 2003, 2006-2014 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from git
-# Autoconf.  Perhaps we can remove this once we can assume Autoconf
-# 2.70 or later everywhere, but since Autoconf mutates rapidly
-# enough in this area it's likely we'll need to redefine
-# AC_USE_SYSTEM_EXTENSIONS for quite some time.
-
-# If autoconf reports a warning
-#     warning: AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
-# or  warning: AC_RUN_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS
-# the fix is
-#   1) to ensure that AC_USE_SYSTEM_EXTENSIONS is never directly invoked
-#      but always AC_REQUIREd,
-#   2) to ensure that for each occurrence of
-#        AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-#      or
-#        AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-#      the corresponding gnulib module description has 'extensions' among
-#      its dependencies. This will ensure that the gl_USE_SYSTEM_EXTENSIONS
-#      invocation occurs in gl_EARLY, not in gl_INIT.
-
-# AC_USE_SYSTEM_EXTENSIONS
-# ------------------------
-# Enable extensions on systems that normally disable them,
-# typically due to standards-conformance issues.
-#
-# Remember that #undef in AH_VERBATIM gets replaced with #define by
-# AC_DEFINE.  The goal here is to define all known feature-enabling
-# macros, then, if reports of conflicts are made, disable macros that
-# cause problems on some platforms (such as __EXTENSIONS__).
-AC_DEFUN_ONCE([AC_USE_SYSTEM_EXTENSIONS],
-[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl
-AC_BEFORE([$0], [AC_RUN_IFELSE])dnl
-
-  AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=])
-  if test "$MINIX" = yes; then
-    AC_DEFINE([_POSIX_SOURCE], [1],
-      [Define to 1 if you need to in order for 'stat' and other
-       things to work.])
-    AC_DEFINE([_POSIX_1_SOURCE], [2],
-      [Define to 2 if the system does not provide POSIX.1 features
-       except with this defined.])
-    AC_DEFINE([_MINIX], [1],
-      [Define to 1 if on MINIX.])
-    AC_DEFINE([_NETBSD_SOURCE], [1],
-      [Define to 1 to make NetBSD features available.  MINIX 3 needs this.])
-  fi
-
-dnl Use a different key than __EXTENSIONS__, as that name broke existing
-dnl configure.ac when using autoheader 2.62.
-  AH_VERBATIM([USE_SYSTEM_EXTENSIONS],
-[/* Enable extensions on AIX 3, Interix.  */
-#ifndef _ALL_SOURCE
-# undef _ALL_SOURCE
-#endif
-/* Enable general extensions on OS X.  */
-#ifndef _DARWIN_C_SOURCE
-# undef _DARWIN_C_SOURCE
-#endif
-/* Enable GNU extensions on systems that have them.  */
-#ifndef _GNU_SOURCE
-# undef _GNU_SOURCE
-#endif
-/* Enable threading extensions on Solaris.  */
-#ifndef _POSIX_PTHREAD_SEMANTICS
-# undef _POSIX_PTHREAD_SEMANTICS
-#endif
-/* Enable extensions on HP NonStop.  */
-#ifndef _TANDEM_SOURCE
-# undef _TANDEM_SOURCE
-#endif
-/* Enable X/Open extensions if necessary.  HP-UX 11.11 defines
-   mbstate_t only if _XOPEN_SOURCE is defined to 500, regardless of
-   whether compiling with -Ae or -D_HPUX_SOURCE=1.  */
-#ifndef _XOPEN_SOURCE
-# undef _XOPEN_SOURCE
-#endif
-/* Enable general extensions on Solaris.  */
-#ifndef __EXTENSIONS__
-# undef __EXTENSIONS__
-#endif
-])
-  AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
-    [ac_cv_safe_to_define___extensions__],
-    [AC_COMPILE_IFELSE(
-       [AC_LANG_PROGRAM([[
-#         define __EXTENSIONS__ 1
-          ]AC_INCLUDES_DEFAULT])],
-       [ac_cv_safe_to_define___extensions__=yes],
-       [ac_cv_safe_to_define___extensions__=no])])
-  test $ac_cv_safe_to_define___extensions__ = yes &&
-    AC_DEFINE([__EXTENSIONS__])
-  AC_DEFINE([_ALL_SOURCE])
-  AC_DEFINE([_DARWIN_C_SOURCE])
-  AC_DEFINE([_GNU_SOURCE])
-  AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
-  AC_DEFINE([_TANDEM_SOURCE])
-  AC_CACHE_CHECK([whether _XOPEN_SOURCE should be defined],
-    [ac_cv_should_define__xopen_source],
-    [ac_cv_should_define__xopen_source=no
-     AC_COMPILE_IFELSE(
-       [AC_LANG_PROGRAM([[
-          #include <wchar.h>
-          mbstate_t x;]])],
-       [],
-       [AC_COMPILE_IFELSE(
-          [AC_LANG_PROGRAM([[
-             #define _XOPEN_SOURCE 500
-             #include <wchar.h>
-             mbstate_t x;]])],
-          [ac_cv_should_define__xopen_source=yes])])])
-  test $ac_cv_should_define__xopen_source = yes &&
-    AC_DEFINE([_XOPEN_SOURCE], [500])
-])# AC_USE_SYSTEM_EXTENSIONS
-
-# gl_USE_SYSTEM_EXTENSIONS
-# ------------------------
-# Enable extensions on systems that normally disable them,
-# typically due to standards-conformance issues.
-AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS],
-[
-  dnl Require this macro before AC_USE_SYSTEM_EXTENSIONS.
-  dnl gnulib does not need it. But if it gets required by third-party macros
-  dnl after AC_USE_SYSTEM_EXTENSIONS is required, autoconf 2.62..2.63 emit a
-  dnl warning: "AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS".
-  dnl Note: We can do this only for one of the macros AC_AIX, AC_GNU_SOURCE,
-  dnl AC_MINIX. If people still use AC_AIX or AC_MINIX, they are out of luck.
-  AC_REQUIRE([AC_GNU_SOURCE])
-
-  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-])
diff --git a/m4/extern-inline.m4 b/m4/extern-inline.m4
deleted file mode 100644
index 7f1bb397..00000000
--- a/m4/extern-inline.m4
+++ /dev/null
@@ -1,99 +0,0 @@
-dnl 'extern inline' a la ISO C99.
-
-dnl Copyright 2012-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_EXTERN_INLINE],
-[
-  AH_VERBATIM([extern_inline],
-[/* Please see the Gnulib manual for how to use these macros.
-
-   Suppress extern inline with HP-UX cc, as it appears to be broken; see
-   <http://lists.gnu.org/archive/html/bug-texinfo/2013-02/msg00030.html>.
-
-   Suppress extern inline with Sun C in standards-conformance mode, as it
-   mishandles inline functions that call each other.  E.g., for 'inline void f
-   (void) { } inline void g (void) { f (); }', c99 incorrectly complains
-   'reference to static identifier "f" in extern inline function'.
-   This bug was observed with Sun C 5.12 SunOS_i386 2011/11/16.
-
-   Suppress extern inline (with or without __attribute__ ((__gnu_inline__)))
-   on configurations that mistakenly use 'static inline' to implement
-   functions or macros in standard C headers like <ctype.h>.  For example,
-   if isdigit is mistakenly implemented via a static inline function,
-   a program containing an extern inline function that calls isdigit
-   may not work since the C standard prohibits extern inline functions
-   from calling static functions.  This bug is known to occur on:
-
-     OS X 10.8 and earlier; see:
-     http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html
-
-     DragonFly; see
-     http://muscles.dragonflybsd.org/bulk/bleeding-edge-potential/latest-per-pkg/ah-tty-0.3.12.log
-
-     FreeBSD; see:
-     http://lists.gnu.org/archive/html/bug-gnulib/2014-07/msg00104.html
-
-   OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and
-   for clang but remains for g++; see <http://trac.macports.org/ticket/41033>.
-   Assume DragonFly and FreeBSD will be similar.  */
-#if (((defined __APPLE__ && defined __MACH__) \
-      || defined __DragonFly__ || defined __FreeBSD__) \
-     && (defined __header_inline \
-         ? (defined __cplusplus && defined __GNUC_STDC_INLINE__ \
-            && ! defined __clang__) \
-         : ((! defined _DONT_USE_CTYPE_INLINE_ \
-             && (defined __GNUC__ || defined __cplusplus)) \
-            || (defined _FORTIFY_SOURCE && 0 < _FORTIFY_SOURCE \
-                && defined __GNUC__ && ! defined __cplusplus))))
-# define _GL_EXTERN_INLINE_STDHEADER_BUG
-#endif
-#if ((__GNUC__ \
-      ? defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__ \
-      : (199901L <= __STDC_VERSION__ \
-         && !defined __HP_cc \
-         && !(defined __SUNPRO_C && __STDC__))) \
-     && !defined _GL_EXTERN_INLINE_STDHEADER_BUG)
-# define _GL_INLINE inline
-# define _GL_EXTERN_INLINE extern inline
-# define _GL_EXTERN_INLINE_IN_USE
-#elif (2 < __GNUC__ + (7 <= __GNUC_MINOR__) && !defined __STRICT_ANSI__ \
-       && !defined _GL_EXTERN_INLINE_STDHEADER_BUG)
-# if defined __GNUC_GNU_INLINE__ && __GNUC_GNU_INLINE__
-   /* __gnu_inline__ suppresses a GCC 4.2 diagnostic.  */
-#  define _GL_INLINE extern inline __attribute__ ((__gnu_inline__))
-# else
-#  define _GL_INLINE extern inline
-# endif
-# define _GL_EXTERN_INLINE extern
-# define _GL_EXTERN_INLINE_IN_USE
-#else
-# define _GL_INLINE static _GL_UNUSED
-# define _GL_EXTERN_INLINE static _GL_UNUSED
-#endif
-
-#if 4 < __GNUC__ + (6 <= __GNUC_MINOR__)
-# if defined __GNUC_STDC_INLINE__ && __GNUC_STDC_INLINE__
-#  define _GL_INLINE_HEADER_CONST_PRAGMA
-# else
-#  define _GL_INLINE_HEADER_CONST_PRAGMA \
-     _Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"")
-# endif
-  /* Suppress GCC's bogus "no previous prototype for 'FOO'"
-     and "no previous declaration for 'FOO'"  diagnostics,
-     when FOO is an inline function in the header; see
-     <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>.  */
-# define _GL_INLINE_HEADER_BEGIN \
-    _Pragma ("GCC diagnostic push") \
-    _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \
-    _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \
-    _GL_INLINE_HEADER_CONST_PRAGMA
-# define _GL_INLINE_HEADER_END \
-    _Pragma ("GCC diagnostic pop")
-#else
-# define _GL_INLINE_HEADER_BEGIN
-# define _GL_INLINE_HEADER_END
-#endif])
-])
diff --git a/m4/fcntl-o.m4 b/m4/fcntl-o.m4
deleted file mode 100644
index 43c93124..00000000
--- a/m4/fcntl-o.m4
+++ /dev/null
@@ -1,134 +0,0 @@
-# fcntl-o.m4 serial 4
-dnl Copyright (C) 2006, 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl Written by Paul Eggert.
-
-# Test whether the flags O_NOATIME and O_NOFOLLOW actually work.
-# Define HAVE_WORKING_O_NOATIME to 1 if O_NOATIME works, or to 0 otherwise.
-# Define HAVE_WORKING_O_NOFOLLOW to 1 if O_NOFOLLOW works, or to 0 otherwise.
-AC_DEFUN([gl_FCNTL_O_FLAGS],
-[
-  dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW.
-  dnl AC_USE_SYSTEM_EXTENSIONS was introduced in autoconf 2.60 and obsoletes
-  dnl AC_GNU_SOURCE.
-  m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],
-    [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])],
-    [AC_REQUIRE([AC_GNU_SOURCE])])
-
-  AC_CHECK_HEADERS_ONCE([unistd.h])
-  AC_CHECK_FUNCS_ONCE([symlink])
-  AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
-    [AC_RUN_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[#include <sys/types.h>
-           #include <sys/stat.h>
-           #if HAVE_UNISTD_H
-           # include <unistd.h>
-           #else /* on Windows with MSVC */
-           # include <io.h>
-           # include <stdlib.h>
-           # defined sleep(n) _sleep ((n) * 1000)
-           #endif
-           #include <fcntl.h>
-           #ifndef O_NOATIME
-            #define O_NOATIME 0
-           #endif
-           #ifndef O_NOFOLLOW
-            #define O_NOFOLLOW 0
-           #endif
-           static int const constants[] =
-            {
-              O_CREAT, O_EXCL, O_NOCTTY, O_TRUNC, O_APPEND,
-              O_NONBLOCK, O_SYNC, O_ACCMODE, O_RDONLY, O_RDWR, O_WRONLY
-            };
-          ]],
-          [[
-            int result = !constants;
-            #if HAVE_SYMLINK
-            {
-              static char const sym[] = "conftest.sym";
-              if (symlink ("/dev/null", sym) != 0)
-                result |= 2;
-              else
-                {
-                  int fd = open (sym, O_WRONLY | O_NOFOLLOW | O_CREAT, 0);
-                  if (fd >= 0)
-                    {
-                      close (fd);
-                      result |= 4;
-                    }
-                }
-              if (unlink (sym) != 0 || symlink (".", sym) != 0)
-                result |= 2;
-              else
-                {
-                  int fd = open (sym, O_RDONLY | O_NOFOLLOW);
-                  if (fd >= 0)
-                    {
-                      close (fd);
-                      result |= 4;
-                    }
-                }
-              unlink (sym);
-            }
-            #endif
-            {
-              static char const file[] = "confdefs.h";
-              int fd = open (file, O_RDONLY | O_NOATIME);
-              if (fd < 0)
-                result |= 8;
-              else
-                {
-                  struct stat st0;
-                  if (fstat (fd, &st0) != 0)
-                    result |= 16;
-                  else
-                    {
-                      char c;
-                      sleep (1);
-                      if (read (fd, &c, 1) != 1)
-                        result |= 24;
-                      else
-                        {
-                          if (close (fd) != 0)
-                            result |= 32;
-                          else
-                            {
-                              struct stat st1;
-                              if (stat (file, &st1) != 0)
-                                result |= 40;
-                              else
-                                if (st0.st_atime != st1.st_atime)
-                                  result |= 64;
-                            }
-                        }
-                    }
-                }
-            }
-            return result;]])],
-       [gl_cv_header_working_fcntl_h=yes],
-       [case $? in #(
-        4) gl_cv_header_working_fcntl_h='no (bad O_NOFOLLOW)';; #(
-        64) gl_cv_header_working_fcntl_h='no (bad O_NOATIME)';; #(
-        68) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #(
-         *) gl_cv_header_working_fcntl_h='no';;
-        esac],
-       [gl_cv_header_working_fcntl_h=cross-compiling])])
-
-  case $gl_cv_header_working_fcntl_h in #(
-  *O_NOATIME* | no | cross-compiling) ac_val=0;; #(
-  *) ac_val=1;;
-  esac
-  AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOATIME], [$ac_val],
-    [Define to 1 if O_NOATIME works.])
-
-  case $gl_cv_header_working_fcntl_h in #(
-  *O_NOFOLLOW* | no | cross-compiling) ac_val=0;; #(
-  *) ac_val=1;;
-  esac
-  AC_DEFINE_UNQUOTED([HAVE_WORKING_O_NOFOLLOW], [$ac_val],
-    [Define to 1 if O_NOFOLLOW works.])
-])
diff --git a/m4/fcntl_h.m4 b/m4/fcntl_h.m4
deleted file mode 100644
index fb2556d3..00000000
--- a/m4/fcntl_h.m4
+++ /dev/null
@@ -1,50 +0,0 @@
-# serial 15
-# Configure fcntl.h.
-dnl Copyright (C) 2006-2007, 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl Written by Paul Eggert.
-
-AC_DEFUN([gl_FCNTL_H],
-[
-  AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
-  AC_REQUIRE([gl_FCNTL_O_FLAGS])
-  gl_NEXT_HEADERS([fcntl.h])
-
-  dnl Ensure the type pid_t gets defined.
-  AC_REQUIRE([AC_TYPE_PID_T])
-
-  dnl Ensure the type mode_t gets defined.
-  AC_REQUIRE([AC_TYPE_MODE_T])
-
-  dnl Check for declarations of anything we want to poison if the
-  dnl corresponding gnulib module is not in use, if it is not common
-  dnl enough to be declared everywhere.
-  gl_WARN_ON_USE_PREPARE([[#include <fcntl.h>
-    ]], [fcntl openat])
-])
-
-AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_FCNTL_H_DEFAULTS],
-[
-  GNULIB_FCNTL=0;        AC_SUBST([GNULIB_FCNTL])
-  GNULIB_NONBLOCKING=0;  AC_SUBST([GNULIB_NONBLOCKING])
-  GNULIB_OPEN=0;         AC_SUBST([GNULIB_OPEN])
-  GNULIB_OPENAT=0;       AC_SUBST([GNULIB_OPENAT])
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  HAVE_FCNTL=1;          AC_SUBST([HAVE_FCNTL])
-  HAVE_OPENAT=1;         AC_SUBST([HAVE_OPENAT])
-  REPLACE_FCNTL=0;       AC_SUBST([REPLACE_FCNTL])
-  REPLACE_OPEN=0;        AC_SUBST([REPLACE_OPEN])
-  REPLACE_OPENAT=0;      AC_SUBST([REPLACE_OPENAT])
-])
diff --git a/m4/gnulib-cache.m4 b/m4/gnulib-cache.m4
deleted file mode 100644
index d4eafa67..00000000
--- a/m4/gnulib-cache.m4
+++ /dev/null
@@ -1,50 +0,0 @@
-# Copyright (C) 2002-2014 Free Software Foundation, Inc.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This file is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this file.  If not, see <http://www.gnu.org/licenses/>.
-#
-# As a special exception to the GNU General Public License,
-# this file may be distributed as part of a program that
-# contains a configuration script generated by Autoconf, under
-# the same distribution terms as the rest of that program.
-#
-# Generated by gnulib-tool.
-#
-# This file represents the specification of how gnulib-tool is used.
-# It acts as a cache: It is written and read by gnulib-tool.
-# In projects that use version control, this file is meant to be put under
-# version control, like the configure.ac and various Makefile.am files.
-
-
-# Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --no-conditional-dependencies --libtool --macro-prefix=gl forkpty lib-ignore strndup
-
-# Specification in the form of a few gnulib-tool.m4 macro invocations:
-gl_LOCAL_DIR([])
-gl_MODULES([
-  forkpty
-  lib-ignore
-  strndup
-])
-gl_AVOID([])
-gl_SOURCE_BASE([lib])
-gl_M4_BASE([m4])
-gl_PO_BASE([])
-gl_DOC_BASE([doc])
-gl_TESTS_BASE([tests])
-gl_LIB([libgnu])
-gl_MAKEFILE_NAME([])
-gl_LIBTOOL
-gl_MACRO_PREFIX([gl])
-gl_PO_DOMAIN([])
-gl_WITNESS_C_MACRO([])
diff --git a/m4/gnulib-common.m4 b/m4/gnulib-common.m4
deleted file mode 100644
index 35f61952..00000000
--- a/m4/gnulib-common.m4
+++ /dev/null
@@ -1,447 +0,0 @@
-# gnulib-common.m4 serial 35
-dnl Copyright (C) 2007-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-# gl_COMMON
-# is expanded unconditionally through gnulib-tool magic.
-AC_DEFUN([gl_COMMON], [
-  dnl Use AC_REQUIRE here, so that the code is expanded once only.
-  AC_REQUIRE([gl_00GNULIB])
-  AC_REQUIRE([gl_COMMON_BODY])
-])
-AC_DEFUN([gl_COMMON_BODY], [
-  AH_VERBATIM([_Noreturn],
-[/* The _Noreturn keyword of C11.  */
-#if ! (defined _Noreturn \
-       || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__))
-# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
-      || 0x5110 <= __SUNPRO_C)
-#  define _Noreturn __attribute__ ((__noreturn__))
-# elif defined _MSC_VER && 1200 <= _MSC_VER
-#  define _Noreturn __declspec (noreturn)
-# else
-#  define _Noreturn
-# endif
-#endif
-])
-  AH_VERBATIM([isoc99_inline],
-[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
-   the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
-   earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
-   __APPLE__ && __MACH__ test for Mac OS X.
-   __APPLE_CC__ tests for the Apple compiler and its version.
-   __STDC_VERSION__ tests for the C99 mode.  */
-#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
-# define __GNUC_STDC_INLINE__ 1
-#endif])
-  AH_VERBATIM([unused_parameter],
-[/* Define as a marker that can be attached to declarations that might not
-    be used.  This helps to reduce warnings, such as from
-    GCC -Wunused-parameter.  */
-#if __GNUC__ >= 3 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7)
-# define _GL_UNUSED __attribute__ ((__unused__))
-#else
-# define _GL_UNUSED
-#endif
-/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
-   is a misnomer outside of parameter lists.  */
-#define _UNUSED_PARAMETER_ _GL_UNUSED
-
-/* gcc supports the "unused" attribute on possibly unused labels, and
-   g++ has since version 4.5.  Note to support C++ as well as C,
-   _GL_UNUSED_LABEL should be used with a trailing ;  */
-#if !defined __cplusplus || __GNUC__ > 4 \
-    || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
-# define _GL_UNUSED_LABEL _GL_UNUSED
-#else
-# define _GL_UNUSED_LABEL
-#endif
-
-/* The __pure__ attribute was added in gcc 2.96.  */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
-# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
-#else
-# define _GL_ATTRIBUTE_PURE /* empty */
-#endif
-
-/* The __const__ attribute was added in gcc 2.95.  */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
-# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
-#else
-# define _GL_ATTRIBUTE_CONST /* empty */
-#endif
-])
-  dnl Preparation for running test programs:
-  dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not
-  dnl to /dev/tty, so they can be redirected to log files.  Such diagnostics
-  dnl arise e.g., in the macros gl_PRINTF_DIRECTIVE_N, gl_SNPRINTF_DIRECTIVE_N.
-  LIBC_FATAL_STDERR_=1
-  export LIBC_FATAL_STDERR_
-])
-
-# gl_MODULE_INDICATOR_CONDITION
-# expands to a C preprocessor expression that evaluates to 1 or 0, depending
-# whether a gnulib module that has been requested shall be considered present
-# or not.
-m4_define([gl_MODULE_INDICATOR_CONDITION], [1])
-
-# gl_MODULE_INDICATOR_SET_VARIABLE([modulename])
-# sets the shell variable that indicates the presence of the given module to
-# a C preprocessor expression that will evaluate to 1.
-AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE],
-[
-  gl_MODULE_INDICATOR_SET_VARIABLE_AUX(
-    [GNULIB_[]m4_translit([[$1]],
-                          [abcdefghijklmnopqrstuvwxyz./-],
-                          [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])],
-    [gl_MODULE_INDICATOR_CONDITION])
-])
-
-# gl_MODULE_INDICATOR_SET_VARIABLE_AUX([variable])
-# modifies the shell variable to include the gl_MODULE_INDICATOR_CONDITION.
-# The shell variable's value is a C preprocessor expression that evaluates
-# to 0 or 1.
-AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX],
-[
-  m4_if(m4_defn([gl_MODULE_INDICATOR_CONDITION]), [1],
-    [
-     dnl Simplify the expression VALUE || 1 to 1.
-     $1=1
-    ],
-    [gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([$1],
-                                             [gl_MODULE_INDICATOR_CONDITION])])
-])
-
-# gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([variable], [condition])
-# modifies the shell variable to include the given condition.  The shell
-# variable's value is a C preprocessor expression that evaluates to 0 or 1.
-AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR],
-[
-  dnl Simplify the expression 1 || CONDITION to 1.
-  if test "$[]$1" != 1; then
-    dnl Simplify the expression 0 || CONDITION to CONDITION.
-    if test "$[]$1" = 0; then
-      $1=$2
-    else
-      $1="($[]$1 || $2)"
-    fi
-  fi
-])
-
-# gl_MODULE_INDICATOR([modulename])
-# defines a C macro indicating the presence of the given module
-# in a location where it can be used.
-#                                             |  Value  |   Value   |
-#                                             | in lib/ | in tests/ |
-# --------------------------------------------+---------+-----------+
-# Module present among main modules:          |    1    |     1     |
-# --------------------------------------------+---------+-----------+
-# Module present among tests-related modules: |    0    |     1     |
-# --------------------------------------------+---------+-----------+
-# Module not present at all:                  |    0    |     0     |
-# --------------------------------------------+---------+-----------+
-AC_DEFUN([gl_MODULE_INDICATOR],
-[
-  AC_DEFINE_UNQUOTED([GNULIB_]m4_translit([[$1]],
-      [abcdefghijklmnopqrstuvwxyz./-],
-      [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]),
-    [gl_MODULE_INDICATOR_CONDITION],
-    [Define to a C preprocessor expression that evaluates to 1 or 0,
-     depending whether the gnulib module $1 shall be considered present.])
-])
-
-# gl_MODULE_INDICATOR_FOR_TESTS([modulename])
-# defines a C macro indicating the presence of the given module
-# in lib or tests. This is useful to determine whether the module
-# should be tested.
-#                                             |  Value  |   Value   |
-#                                             | in lib/ | in tests/ |
-# --------------------------------------------+---------+-----------+
-# Module present among main modules:          |    1    |     1     |
-# --------------------------------------------+---------+-----------+
-# Module present among tests-related modules: |    1    |     1     |
-# --------------------------------------------+---------+-----------+
-# Module not present at all:                  |    0    |     0     |
-# --------------------------------------------+---------+-----------+
-AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS],
-[
-  AC_DEFINE([GNULIB_TEST_]m4_translit([[$1]],
-      [abcdefghijklmnopqrstuvwxyz./-],
-      [ABCDEFGHIJKLMNOPQRSTUVWXYZ___]), [1],
-    [Define to 1 when the gnulib module $1 should be tested.])
-])
-
-# gl_ASSERT_NO_GNULIB_POSIXCHECK
-# asserts that there will never be a need to #define GNULIB_POSIXCHECK.
-# and thereby enables an optimization of configure and config.h.
-# Used by Emacs.
-AC_DEFUN([gl_ASSERT_NO_GNULIB_POSIXCHECK],
-[
-  dnl Override gl_WARN_ON_USE_PREPARE.
-  dnl But hide this definition from 'aclocal'.
-  AC_DEFUN([gl_W][ARN_ON_USE_PREPARE], [])
-])
-
-# gl_ASSERT_NO_GNULIB_TESTS
-# asserts that there will be no gnulib tests in the scope of the configure.ac
-# and thereby enables an optimization of config.h.
-# Used by Emacs.
-AC_DEFUN([gl_ASSERT_NO_GNULIB_TESTS],
-[
-  dnl Override gl_MODULE_INDICATOR_FOR_TESTS.
-  AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS], [])
-])
-
-# Test whether <features.h> exists.
-# Set HAVE_FEATURES_H.
-AC_DEFUN([gl_FEATURES_H],
-[
-  AC_CHECK_HEADERS_ONCE([features.h])
-  if test $ac_cv_header_features_h = yes; then
-    HAVE_FEATURES_H=1
-  else
-    HAVE_FEATURES_H=0
-  fi
-  AC_SUBST([HAVE_FEATURES_H])
-])
-
-# m4_foreach_w
-# is a backport of autoconf-2.59c's m4_foreach_w.
-# Remove this macro when we can assume autoconf >= 2.60.
-m4_ifndef([m4_foreach_w],
-  [m4_define([m4_foreach_w],
-    [m4_foreach([$1], m4_split(m4_normalize([$2]), [ ]), [$3])])])
-
-# AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH])
-# ----------------------------------------------------
-# Backport of autoconf-2.63b's macro.
-# Remove this macro when we can assume autoconf >= 2.64.
-m4_ifndef([AS_VAR_IF],
-[m4_define([AS_VAR_IF],
-[AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
-
-# gl_PROG_CC_C99
-# Modifies the value of the shell variable CC in an attempt to make $CC
-# understand ISO C99 source code.
-# This is like AC_PROG_CC_C99, except that
-# - AC_PROG_CC_C99 did not exist in Autoconf versions < 2.60,
-# - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC
-#   <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00367.html>,
-#   but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99
-#   <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00441.html>.
-# Remaining problems:
-# - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options
-#   to CC twice
-#   <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00431.html>.
-# - AC_PROG_CC_STDC is likely to change now that C11 is an ISO standard.
-AC_DEFUN([gl_PROG_CC_C99],
-[
-  dnl Change that version number to the minimum Autoconf version that supports
-  dnl mixing AC_PROG_CC_C99 calls with AC_PROG_CC_STDC calls.
-  m4_version_prereq([9.0],
-    [AC_REQUIRE([AC_PROG_CC_C99])],
-    [AC_REQUIRE([AC_PROG_CC_STDC])])
-])
-
-# gl_PROG_AR_RANLIB
-# Determines the values for AR, ARFLAGS, RANLIB that fit with the compiler.
-# The user can set the variables AR, ARFLAGS, RANLIB if he wants to override
-# the values.
-AC_DEFUN([gl_PROG_AR_RANLIB],
-[
-  dnl Minix 3 comes with two toolchains: The Amsterdam Compiler Kit compiler
-  dnl as "cc", and GCC as "gcc". They have different object file formats and
-  dnl library formats. In particular, the GNU binutils programs ar, ranlib
-  dnl produce libraries that work only with gcc, not with cc.
-  AC_REQUIRE([AC_PROG_CC])
-  AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler],
-    [
-      AC_EGREP_CPP([Amsterdam],
-        [
-#ifdef __ACK__
-Amsterdam
-#endif
-        ],
-        [gl_cv_c_amsterdam_compiler=yes],
-        [gl_cv_c_amsterdam_compiler=no])
-    ])
-  if test -z "$AR"; then
-    if test $gl_cv_c_amsterdam_compiler = yes; then
-      AR='cc -c.a'
-      if test -z "$ARFLAGS"; then
-        ARFLAGS='-o'
-      fi
-    else
-      dnl Use the Automake-documented default values for AR and ARFLAGS,
-      dnl but prefer ${host}-ar over ar (useful for cross-compiling).
-      AC_CHECK_TOOL([AR], [ar], [ar])
-      if test -z "$ARFLAGS"; then
-        ARFLAGS='cru'
-      fi
-    fi
-  else
-    if test -z "$ARFLAGS"; then
-      ARFLAGS='cru'
-    fi
-  fi
-  AC_SUBST([AR])
-  AC_SUBST([ARFLAGS])
-  if test -z "$RANLIB"; then
-    if test $gl_cv_c_amsterdam_compiler = yes; then
-      RANLIB=':'
-    else
-      dnl Use the ranlib program if it is available.
-      AC_PROG_RANLIB
-    fi
-  fi
-  AC_SUBST([RANLIB])
-])
-
-# AC_PROG_MKDIR_P
-# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
-# for interoperability with automake-1.9.6 from autoconf-2.62.
-# Remove this macro when we can assume autoconf >= 2.62 or
-# autoconf >= 2.60 && automake >= 1.10.
-# AC_AUTOCONF_VERSION was introduced in 2.62, so use that as the witness.
-m4_ifndef([AC_AUTOCONF_VERSION],[
-m4_ifdef([AC_PROG_MKDIR_P], [
-  dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed.
-  m4_define([AC_PROG_MKDIR_P],
-    m4_defn([AC_PROG_MKDIR_P])[
-    AC_SUBST([MKDIR_P])])], [
-  dnl For autoconf < 2.60: Backport of AC_PROG_MKDIR_P.
-  AC_DEFUN_ONCE([AC_PROG_MKDIR_P],
-    [AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
-     MKDIR_P='$(mkdir_p)'
-     AC_SUBST([MKDIR_P])])])
-])
-
-# AC_C_RESTRICT
-# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
-# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
-# works.
-# This definition can be removed once autoconf >= 2.62 can be assumed.
-# AC_AUTOCONF_VERSION was introduced in 2.62, so use that as the witness.
-m4_ifndef([AC_AUTOCONF_VERSION],[
-AC_DEFUN([AC_C_RESTRICT],
-[AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict],
-  [ac_cv_c_restrict=no
-   # The order here caters to the fact that C++ does not require restrict.
-   for ac_kw in __restrict __restrict__ _Restrict restrict; do
-     AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-      [[typedef int * int_ptr;
-        int foo (int_ptr $ac_kw ip) {
-        return ip[0];
-       }]],
-      [[int s[1];
-        int * $ac_kw t = s;
-        t[0] = 0;
-        return foo(t)]])],
-      [ac_cv_c_restrict=$ac_kw])
-     test "$ac_cv_c_restrict" != no && break
-   done
-  ])
- AH_VERBATIM([restrict],
-[/* Define to the equivalent of the C99 'restrict' keyword, or to
-   nothing if this is not supported.  Do not define if restrict is
-   supported directly.  */
-#undef restrict
-/* Work around a bug in Sun C++: it does not support _Restrict, even
-   though the corresponding Sun C compiler does, which causes
-   "#define restrict _Restrict" in the previous line.  Perhaps some future
-   version of Sun C++ will work with _Restrict; if so, it'll probably
-   define __RESTRICT, just as Sun C does.  */
-#if defined __SUNPRO_CC && !defined __RESTRICT
-# define _Restrict
-#endif])
- case $ac_cv_c_restrict in
-   restrict) ;;
-   no) AC_DEFINE([restrict], []) ;;
-   *)  AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
- esac
-])
-])
-
-# gl_BIGENDIAN
-# is like AC_C_BIGENDIAN, except that it can be AC_REQUIREd.
-# Note that AC_REQUIRE([AC_C_BIGENDIAN]) does not work reliably because some
-# macros invoke AC_C_BIGENDIAN with arguments.
-AC_DEFUN([gl_BIGENDIAN],
-[
-  AC_C_BIGENDIAN
-])
-
-# gl_CACHE_VAL_SILENT(cache-id, command-to-set-it)
-# is like AC_CACHE_VAL(cache-id, command-to-set-it), except that it does not
-# output a spurious "(cached)" mark in the midst of other configure output.
-# This macro should be used instead of AC_CACHE_VAL when it is not surrounded
-# by an AC_MSG_CHECKING/AC_MSG_RESULT pair.
-AC_DEFUN([gl_CACHE_VAL_SILENT],
-[
-  saved_as_echo_n="$as_echo_n"
-  as_echo_n=':'
-  AC_CACHE_VAL([$1], [$2])
-  as_echo_n="$saved_as_echo_n"
-])
-
-# AS_VAR_COPY was added in autoconf 2.63b
-m4_define_default([AS_VAR_COPY],
-[AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])])
-
-# AC_PROG_SED was added in autoconf 2.59b
-m4_ifndef([AC_PROG_SED],
-[AC_DEFUN([AC_PROG_SED],
-[AC_CACHE_CHECK([for a sed that does not truncate output], ac_cv_path_SED,
-    [dnl ac_script should not contain more than 99 commands (for HP-UX sed),
-     dnl but more than about 7000 bytes, to catch a limit in Solaris 8 /usr/ucb/sed.
-     ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
-     for ac_i in 1 2 3 4 5 6 7; do
-       ac_script="$ac_script$as_nl$ac_script"
-     done
-     echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
-     AS_UNSET([ac_script])
-     if test -z "$SED"; then
-       ac_path_SED_found=false
-       _AS_PATH_WALK([], [
-         for ac_prog in sed gsed; do
-           for ac_exec_ext in '' $ac_executable_extensions; do
-             ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
-             AS_EXECUTABLE_P(["$ac_path_SED"]) || continue
-             case `"$ac_path_SED" --version 2>&1` in
-               *GNU*) ac_cv_path_SED=$ac_path_SED ac_path_SED_found=:;;
-               *)
-                 ac_count=0
-                 _AS_ECHO_N([0123456789]) >conftest.in
-                 while :
-                 do
-                   cat conftest.in conftest.in >conftest.tmp
-                   mv conftest.tmp conftest.in
-                   cp conftest.in conftest.nl
-                   echo >> conftest.nl
-                   "$ac_path_SED" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
-                   diff conftest.out conftest.nl >/dev/null 2>&1 || break
-                   ac_count=`expr $ac_count + 1`
-                   if test $ac_count -gt ${ac_path_SED_max-0}; then
-                     # Best so far, but keep looking for better
-                     ac_cv_path_SED=$ac_path_SED
-                     ac_path_SED_max=$ac_count
-                   fi
-                   test $ac_count -gt 10 && break
-                 done
-                 rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
-             esac
-             $ac_path_SED_found && break 3
-           done
-         done])
-       if test -z "$ac_cv_path_SED"; then
-         AC_ERROR([no acceptable sed could be found in \$PATH])
-       fi
-     else
-       ac_cv_path_SED=$SED
-     fi
- SED="$ac_cv_path_SED"
- AC_SUBST([SED])dnl
- rm -f conftest.sed
-])])])
diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4
deleted file mode 100644
index ddbf6574..00000000
--- a/m4/gnulib-comp.m4
+++ /dev/null
@@ -1,357 +0,0 @@
-# DO NOT EDIT! GENERATED AUTOMATICALLY!
-# Copyright (C) 2002-2014 Free Software Foundation, Inc.
-#
-# This file is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This file is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this file.  If not, see <http://www.gnu.org/licenses/>.
-#
-# As a special exception to the GNU General Public License,
-# this file may be distributed as part of a program that
-# contains a configuration script generated by Autoconf, under
-# the same distribution terms as the rest of that program.
-#
-# Generated by gnulib-tool.
-#
-# This file represents the compiled summary of the specification in
-# gnulib-cache.m4. It lists the computed macro invocations that need
-# to be invoked from configure.ac.
-# In projects that use version control, this file can be treated like
-# other built files.
-
-
-# This macro should be invoked from ./configure.ac, in the section
-# "Checks for programs", right after AC_PROG_CC, and certainly before
-# any checks for libraries, header files, types and library functions.
-AC_DEFUN([gl_EARLY],
-[
-  m4_pattern_forbid([^gl_[A-Z]])dnl the gnulib macro namespace
-  m4_pattern_allow([^gl_ES$])dnl a valid locale name
-  m4_pattern_allow([^gl_LIBOBJS$])dnl a variable
-  m4_pattern_allow([^gl_LTLIBOBJS$])dnl a variable
-  AC_REQUIRE([gl_PROG_AR_RANLIB])
-  # Code from module absolute-header:
-  # Code from module errno:
-  # Code from module extensions:
-  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-  # Code from module extern-inline:
-  # Code from module fcntl-h:
-  # Code from module fd-hook:
-  # Code from module forkpty:
-  # Code from module include_next:
-  # Code from module ioctl:
-  # Code from module lib-ignore:
-  # Code from module login_tty:
-  # Code from module msvc-inval:
-  # Code from module msvc-nothrow:
-  # Code from module openpty:
-  # Code from module posix_openpt:
-  # Code from module pty:
-  # Code from module snippet/_Noreturn:
-  # Code from module snippet/arg-nonnull:
-  # Code from module snippet/c++defs:
-  # Code from module snippet/warn-on-use:
-  # Code from module socklen:
-  # Code from module ssize_t:
-  # Code from module stdalign:
-  # Code from module stddef:
-  # Code from module stdlib:
-  # Code from module string:
-  # Code from module strndup:
-  # Code from module strnlen:
-  # Code from module sys_ioctl:
-  # Code from module sys_socket:
-  # Code from module sys_types:
-  # Code from module sys_uio:
-  # Code from module unistd:
-])
-
-# This macro should be invoked from ./configure.ac, in the section
-# "Check for header files, types and library functions".
-AC_DEFUN([gl_INIT],
-[
-  AM_CONDITIONAL([GL_COND_LIBTOOL], [true])
-  gl_cond_libtool=true
-  gl_m4_base='m4'
-  m4_pushdef([AC_LIBOBJ], m4_defn([gl_LIBOBJ]))
-  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gl_REPLACE_FUNCS]))
-  m4_pushdef([AC_LIBSOURCES], m4_defn([gl_LIBSOURCES]))
-  m4_pushdef([gl_LIBSOURCES_LIST], [])
-  m4_pushdef([gl_LIBSOURCES_DIR], [])
-  gl_COMMON
-  gl_source_base='lib'
-  gl_HEADER_ERRNO_H
-  AC_REQUIRE([gl_EXTERN_INLINE])
-  gl_FCNTL_H
-  gl_FUNC_FORKPTY
-  if test $HAVE_FORKPTY = 0 || test $REPLACE_FORKPTY = 1; then
-    AC_LIBOBJ([forkpty])
-  fi
-  gl_PTY_MODULE_INDICATOR([forkpty])
-  gl_FUNC_IOCTL
-  if test $HAVE_IOCTL = 0 || test $REPLACE_IOCTL = 1; then
-    AC_LIBOBJ([ioctl])
-  fi
-  gl_SYS_IOCTL_MODULE_INDICATOR([ioctl])
-  gl_IGNORE_UNUSED_LIBRARIES
-  gl_FUNC_LOGIN_TTY
-  if test $ac_cv_func_login_tty = no; then
-    AC_LIBOBJ([login_tty])
-  fi
-  gl_PTY_MODULE_INDICATOR([login_tty])
-  gl_MSVC_INVAL
-  if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
-    AC_LIBOBJ([msvc-inval])
-  fi
-  gl_MSVC_NOTHROW
-  if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
-    AC_LIBOBJ([msvc-nothrow])
-  fi
-  gl_FUNC_OPENPTY
-  if test $HAVE_OPENPTY = 0 || test $REPLACE_OPENPTY = 1; then
-    AC_LIBOBJ([openpty])
-  fi
-  gl_PTY_MODULE_INDICATOR([openpty])
-  gl_FUNC_POSIX_OPENPT
-  if test $HAVE_POSIX_OPENPT = 0; then
-    AC_LIBOBJ([posix_openpt])
-  fi
-  gl_STDLIB_MODULE_INDICATOR([posix_openpt])
-  gl_PTY_H
-  gl_TYPE_SOCKLEN_T
-  gt_TYPE_SSIZE_T
-  gl_STDALIGN_H
-  gl_STDDEF_H
-  gl_STDLIB_H
-  gl_HEADER_STRING_H
-  gl_FUNC_STRNDUP
-  if test $HAVE_STRNDUP = 0 || test $REPLACE_STRNDUP = 1; then
-    AC_LIBOBJ([strndup])
-  fi
-  gl_STRING_MODULE_INDICATOR([strndup])
-  gl_FUNC_STRNLEN
-  if test $HAVE_DECL_STRNLEN = 0 || test $REPLACE_STRNLEN = 1; then
-    AC_LIBOBJ([strnlen])
-    gl_PREREQ_STRNLEN
-  fi
-  gl_STRING_MODULE_INDICATOR([strnlen])
-  gl_SYS_IOCTL_H
-  AC_PROG_MKDIR_P
-  gl_HEADER_SYS_SOCKET
-  AC_PROG_MKDIR_P
-  gl_SYS_TYPES_H
-  AC_PROG_MKDIR_P
-  gl_HEADER_SYS_UIO
-  AC_PROG_MKDIR_P
-  gl_UNISTD_H
-  # End of code from modules
-  m4_ifval(gl_LIBSOURCES_LIST, [
-    m4_syscmd([test ! -d ]m4_defn([gl_LIBSOURCES_DIR])[ ||
-      for gl_file in ]gl_LIBSOURCES_LIST[ ; do
-        if test ! -r ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file ; then
-          echo "missing file ]m4_defn([gl_LIBSOURCES_DIR])[/$gl_file" >&2
-          exit 1
-        fi
-      done])dnl
-      m4_if(m4_sysval, [0], [],
-        [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])])
-  ])
-  m4_popdef([gl_LIBSOURCES_DIR])
-  m4_popdef([gl_LIBSOURCES_LIST])
-  m4_popdef([AC_LIBSOURCES])
-  m4_popdef([AC_REPLACE_FUNCS])
-  m4_popdef([AC_LIBOBJ])
-  AC_CONFIG_COMMANDS_PRE([
-    gl_libobjs=
-    gl_ltlibobjs=
-    if test -n "$gl_LIBOBJS"; then
-      # Remove the extension.
-      sed_drop_objext='s/\.o$//;s/\.obj$//'
-      for i in `for i in $gl_LIBOBJS; do echo "$i"; done | sed -e "$sed_drop_objext" | sort | uniq`; do
-        gl_libobjs="$gl_libobjs $i.$ac_objext"
-        gl_ltlibobjs="$gl_ltlibobjs $i.lo"
-      done
-    fi
-    AC_SUBST([gl_LIBOBJS], [$gl_libobjs])
-    AC_SUBST([gl_LTLIBOBJS], [$gl_ltlibobjs])
-  ])
-  gltests_libdeps=
-  gltests_ltlibdeps=
-  m4_pushdef([AC_LIBOBJ], m4_defn([gltests_LIBOBJ]))
-  m4_pushdef([AC_REPLACE_FUNCS], m4_defn([gltests_REPLACE_FUNCS]))
-  m4_pushdef([AC_LIBSOURCES], m4_defn([gltests_LIBSOURCES]))
-  m4_pushdef([gltests_LIBSOURCES_LIST], [])
-  m4_pushdef([gltests_LIBSOURCES_DIR], [])
-  gl_COMMON
-  gl_source_base='tests'
-changequote(,)dnl
-  gltests_WITNESS=IN_`echo "${PACKAGE-$PACKAGE_TARNAME}" | LC_ALL=C tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ | LC_ALL=C sed -e 's/[^A-Z0-9_]/_/g'`_GNULIB_TESTS
-changequote([, ])dnl
-  AC_SUBST([gltests_WITNESS])
-  gl_module_indicator_condition=$gltests_WITNESS
-  m4_pushdef([gl_MODULE_INDICATOR_CONDITION], [$gl_module_indicator_condition])
-  m4_popdef([gl_MODULE_INDICATOR_CONDITION])
-  m4_ifval(gltests_LIBSOURCES_LIST, [
-    m4_syscmd([test ! -d ]m4_defn([gltests_LIBSOURCES_DIR])[ ||
-      for gl_file in ]gltests_LIBSOURCES_LIST[ ; do
-        if test ! -r ]m4_defn([gltests_LIBSOURCES_DIR])[/$gl_file ; then
-          echo "missing file ]m4_defn([gltests_LIBSOURCES_DIR])[/$gl_file" >&2
-          exit 1
-        fi
-      done])dnl
-      m4_if(m4_sysval, [0], [],
-        [AC_FATAL([expected source file, required through AC_LIBSOURCES, not found])])
-  ])
-  m4_popdef([gltests_LIBSOURCES_DIR])
-  m4_popdef([gltests_LIBSOURCES_LIST])
-  m4_popdef([AC_LIBSOURCES])
-  m4_popdef([AC_REPLACE_FUNCS])
-  m4_popdef([AC_LIBOBJ])
-  AC_CONFIG_COMMANDS_PRE([
-    gltests_libobjs=
-    gltests_ltlibobjs=
-    if test -n "$gltests_LIBOBJS"; then
-      # Remove the extension.
-      sed_drop_objext='s/\.o$//;s/\.obj$//'
-      for i in `for i in $gltests_LIBOBJS; do echo "$i"; done | sed -e "$sed_drop_objext" | sort | uniq`; do
-        gltests_libobjs="$gltests_libobjs $i.$ac_objext"
-        gltests_ltlibobjs="$gltests_ltlibobjs $i.lo"
-      done
-    fi
-    AC_SUBST([gltests_LIBOBJS], [$gltests_libobjs])
-    AC_SUBST([gltests_LTLIBOBJS], [$gltests_ltlibobjs])
-  ])
-])
-
-# Like AC_LIBOBJ, except that the module name goes
-# into gl_LIBOBJS instead of into LIBOBJS.
-AC_DEFUN([gl_LIBOBJ], [
-  AS_LITERAL_IF([$1], [gl_LIBSOURCES([$1.c])])dnl
-  gl_LIBOBJS="$gl_LIBOBJS $1.$ac_objext"
-])
-
-# Like AC_REPLACE_FUNCS, except that the module name goes
-# into gl_LIBOBJS instead of into LIBOBJS.
-AC_DEFUN([gl_REPLACE_FUNCS], [
-  m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl
-  AC_CHECK_FUNCS([$1], , [gl_LIBOBJ($ac_func)])
-])
-
-# Like AC_LIBSOURCES, except the directory where the source file is
-# expected is derived from the gnulib-tool parameterization,
-# and alloca is special cased (for the alloca-opt module).
-# We could also entirely rely on EXTRA_lib..._SOURCES.
-AC_DEFUN([gl_LIBSOURCES], [
-  m4_foreach([_gl_NAME], [$1], [
-    m4_if(_gl_NAME, [alloca.c], [], [
-      m4_define([gl_LIBSOURCES_DIR], [lib])
-      m4_append([gl_LIBSOURCES_LIST], _gl_NAME, [ ])
-    ])
-  ])
-])
-
-# Like AC_LIBOBJ, except that the module name goes
-# into gltests_LIBOBJS instead of into LIBOBJS.
-AC_DEFUN([gltests_LIBOBJ], [
-  AS_LITERAL_IF([$1], [gltests_LIBSOURCES([$1.c])])dnl
-  gltests_LIBOBJS="$gltests_LIBOBJS $1.$ac_objext"
-])
-
-# Like AC_REPLACE_FUNCS, except that the module name goes
-# into gltests_LIBOBJS instead of into LIBOBJS.
-AC_DEFUN([gltests_REPLACE_FUNCS], [
-  m4_foreach_w([gl_NAME], [$1], [AC_LIBSOURCES(gl_NAME[.c])])dnl
-  AC_CHECK_FUNCS([$1], , [gltests_LIBOBJ($ac_func)])
-])
-
-# Like AC_LIBSOURCES, except the directory where the source file is
-# expected is derived from the gnulib-tool parameterization,
-# and alloca is special cased (for the alloca-opt module).
-# We could also entirely rely on EXTRA_lib..._SOURCES.
-AC_DEFUN([gltests_LIBSOURCES], [
-  m4_foreach([_gl_NAME], [$1], [
-    m4_if(_gl_NAME, [alloca.c], [], [
-      m4_define([gltests_LIBSOURCES_DIR], [tests])
-      m4_append([gltests_LIBSOURCES_LIST], _gl_NAME, [ ])
-    ])
-  ])
-])
-
-# This macro records the list of files which have been installed by
-# gnulib-tool and may be removed by future gnulib-tool invocations.
-AC_DEFUN([gl_FILE_LIST], [
-  build-aux/snippet/_Noreturn.h
-  build-aux/snippet/arg-nonnull.h
-  build-aux/snippet/c++defs.h
-  build-aux/snippet/warn-on-use.h
-  lib/errno.in.h
-  lib/fcntl.in.h
-  lib/fd-hook.c
-  lib/fd-hook.h
-  lib/forkpty.c
-  lib/ioctl.c
-  lib/login_tty.c
-  lib/msvc-inval.c
-  lib/msvc-inval.h
-  lib/msvc-nothrow.c
-  lib/msvc-nothrow.h
-  lib/openpty.c
-  lib/posix_openpt.c
-  lib/pty.in.h
-  lib/stdalign.in.h
-  lib/stddef.in.h
-  lib/stdlib.in.h
-  lib/string.in.h
-  lib/strndup.c
-  lib/strnlen.c
-  lib/sys_ioctl.in.h
-  lib/sys_socket.c
-  lib/sys_socket.in.h
-  lib/sys_types.in.h
-  lib/sys_uio.in.h
-  lib/unistd.c
-  lib/unistd.in.h
-  lib/w32sock.h
-  m4/00gnulib.m4
-  m4/absolute-header.m4
-  m4/errno_h.m4
-  m4/extensions.m4
-  m4/extern-inline.m4
-  m4/fcntl-o.m4
-  m4/fcntl_h.m4
-  m4/gnulib-common.m4
-  m4/include_next.m4
-  m4/ioctl.m4
-  m4/lib-ignore.m4
-  m4/msvc-inval.m4
-  m4/msvc-nothrow.m4
-  m4/off_t.m4
-  m4/onceonly.m4
-  m4/posix_openpt.m4
-  m4/pty.m4
-  m4/pty_h.m4
-  m4/socklen.m4
-  m4/sockpfaf.m4
-  m4/ssize_t.m4
-  m4/stdalign.m4
-  m4/stddef_h.m4
-  m4/stdlib_h.m4
-  m4/string_h.m4
-  m4/strndup.m4
-  m4/strnlen.m4
-  m4/sys_ioctl_h.m4
-  m4/sys_socket_h.m4
-  m4/sys_types_h.m4
-  m4/sys_uio_h.m4
-  m4/unistd_h.m4
-  m4/warn-on-use.m4
-  m4/wchar_t.m4
-])
diff --git a/m4/gnulib-tool.m4 b/m4/gnulib-tool.m4
deleted file mode 100644
index a588e151..00000000
--- a/m4/gnulib-tool.m4
+++ /dev/null
@@ -1,57 +0,0 @@
-# gnulib-tool.m4 serial 2
-dnl Copyright (C) 2004-2005, 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl The following macros need not be invoked explicitly.
-dnl Invoking them does nothing except to declare default arguments
-dnl for "gnulib-tool --import".
-
-dnl Usage: gl_LOCAL_DIR([DIR])
-AC_DEFUN([gl_LOCAL_DIR], [])
-
-dnl Usage: gl_MODULES([module1 module2 ...])
-AC_DEFUN([gl_MODULES], [])
-
-dnl Usage: gl_AVOID([module1 module2 ...])
-AC_DEFUN([gl_AVOID], [])
-
-dnl Usage: gl_SOURCE_BASE([DIR])
-AC_DEFUN([gl_SOURCE_BASE], [])
-
-dnl Usage: gl_M4_BASE([DIR])
-AC_DEFUN([gl_M4_BASE], [])
-
-dnl Usage: gl_PO_BASE([DIR])
-AC_DEFUN([gl_PO_BASE], [])
-
-dnl Usage: gl_DOC_BASE([DIR])
-AC_DEFUN([gl_DOC_BASE], [])
-
-dnl Usage: gl_TESTS_BASE([DIR])
-AC_DEFUN([gl_TESTS_BASE], [])
-
-dnl Usage: gl_WITH_TESTS
-AC_DEFUN([gl_WITH_TESTS], [])
-
-dnl Usage: gl_LIB([LIBNAME])
-AC_DEFUN([gl_LIB], [])
-
-dnl Usage: gl_LGPL or gl_LGPL([VERSION])
-AC_DEFUN([gl_LGPL], [])
-
-dnl Usage: gl_MAKEFILE_NAME([FILENAME])
-AC_DEFUN([gl_MAKEFILE_NAME], [])
-
-dnl Usage: gl_LIBTOOL
-AC_DEFUN([gl_LIBTOOL], [])
-
-dnl Usage: gl_MACRO_PREFIX([PREFIX])
-AC_DEFUN([gl_MACRO_PREFIX], [])
-
-dnl Usage: gl_PO_DOMAIN([DOMAIN])
-AC_DEFUN([gl_PO_DOMAIN], [])
-
-dnl Usage: gl_VC_FILES([BOOLEAN])
-AC_DEFUN([gl_VC_FILES], [])
diff --git a/m4/include_next.m4 b/m4/include_next.m4
deleted file mode 100644
index 69ad3dbb..00000000
--- a/m4/include_next.m4
+++ /dev/null
@@ -1,223 +0,0 @@
-# include_next.m4 serial 23
-dnl Copyright (C) 2006-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Paul Eggert and Derek Price.
-
-dnl Sets INCLUDE_NEXT and PRAGMA_SYSTEM_HEADER.
-dnl
-dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to
-dnl 'include' otherwise.
-dnl
-dnl INCLUDE_NEXT_AS_FIRST_DIRECTIVE expands to 'include_next' if the compiler
-dnl supports it in the special case that it is the first include directive in
-dnl the given file, or to 'include' otherwise.
-dnl
-dnl PRAGMA_SYSTEM_HEADER can be used in files that contain #include_next,
-dnl so as to avoid GCC warnings when the gcc option -pedantic is used.
-dnl '#pragma GCC system_header' has the same effect as if the file was found
-dnl through the include search path specified with '-isystem' options (as
-dnl opposed to the search path specified with '-I' options). Namely, gcc
-dnl does not warn about some things, and on some systems (Solaris and Interix)
-dnl __STDC__ evaluates to 0 instead of to 1. The latter is an undesired side
-dnl effect; we are therefore careful to use 'defined __STDC__' or '1' instead
-dnl of plain '__STDC__'.
-dnl
-dnl PRAGMA_COLUMNS can be used in files that override system header files, so
-dnl as to avoid compilation errors on HP NonStop systems when the gnulib file
-dnl is included by a system header file that does a "#pragma COLUMNS 80" (which
-dnl has the effect of truncating the lines of that file and all files that it
-dnl includes to 80 columns) and the gnulib file has lines longer than 80
-dnl columns.
-
-AC_DEFUN([gl_INCLUDE_NEXT],
-[
-  AC_LANG_PREPROC_REQUIRE()
-  AC_CACHE_CHECK([whether the preprocessor supports include_next],
-    [gl_cv_have_include_next],
-    [rm -rf conftestd1a conftestd1b conftestd2
-     mkdir conftestd1a conftestd1b conftestd2
-     dnl IBM C 9.0, 10.1 (original versions, prior to the 2009-01 updates) on
-     dnl AIX 6.1 support include_next when used as first preprocessor directive
-     dnl in a file, but not when preceded by another include directive. Check
-     dnl for this bug by including <stdio.h>.
-     dnl Additionally, with this same compiler, include_next is a no-op when
-     dnl used in a header file that was included by specifying its absolute
-     dnl file name. Despite these two bugs, include_next is used in the
-     dnl compiler's <math.h>. By virtue of the second bug, we need to use
-     dnl include_next as well in this case.
-     cat <<EOF > conftestd1a/conftest.h
-#define DEFINED_IN_CONFTESTD1
-#include_next <conftest.h>
-#ifdef DEFINED_IN_CONFTESTD2
-int foo;
-#else
-#error "include_next doesn't work"
-#endif
-EOF
-     cat <<EOF > conftestd1b/conftest.h
-#define DEFINED_IN_CONFTESTD1
-#include <stdio.h>
-#include_next <conftest.h>
-#ifdef DEFINED_IN_CONFTESTD2
-int foo;
-#else
-#error "include_next doesn't work"
-#endif
-EOF
-     cat <<EOF > conftestd2/conftest.h
-#ifndef DEFINED_IN_CONFTESTD1
-#error "include_next test doesn't work"
-#endif
-#define DEFINED_IN_CONFTESTD2
-EOF
-     gl_save_CPPFLAGS="$CPPFLAGS"
-     CPPFLAGS="$gl_save_CPPFLAGS -Iconftestd1b -Iconftestd2"
-dnl We intentionally avoid using AC_LANG_SOURCE here.
-     AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED[#include <conftest.h>]],
-       [gl_cv_have_include_next=yes],
-       [CPPFLAGS="$gl_save_CPPFLAGS -Iconftestd1a -Iconftestd2"
-        AC_COMPILE_IFELSE([AC_LANG_DEFINES_PROVIDED[#include <conftest.h>]],
-          [gl_cv_have_include_next=buggy],
-          [gl_cv_have_include_next=no])
-       ])
-     CPPFLAGS="$gl_save_CPPFLAGS"
-     rm -rf conftestd1a conftestd1b conftestd2
-    ])
-  PRAGMA_SYSTEM_HEADER=
-  if test $gl_cv_have_include_next = yes; then
-    INCLUDE_NEXT=include_next
-    INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include_next
-    if test -n "$GCC"; then
-      PRAGMA_SYSTEM_HEADER='#pragma GCC system_header'
-    fi
-  else
-    if test $gl_cv_have_include_next = buggy; then
-      INCLUDE_NEXT=include
-      INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include_next
-    else
-      INCLUDE_NEXT=include
-      INCLUDE_NEXT_AS_FIRST_DIRECTIVE=include
-    fi
-  fi
-  AC_SUBST([INCLUDE_NEXT])
-  AC_SUBST([INCLUDE_NEXT_AS_FIRST_DIRECTIVE])
-  AC_SUBST([PRAGMA_SYSTEM_HEADER])
-  AC_CACHE_CHECK([whether system header files limit the line length],
-    [gl_cv_pragma_columns],
-    [dnl HP NonStop systems, which define __TANDEM, have this misfeature.
-     AC_EGREP_CPP([choke me],
-       [
-#ifdef __TANDEM
-choke me
-#endif
-       ],
-       [gl_cv_pragma_columns=yes],
-       [gl_cv_pragma_columns=no])
-    ])
-  if test $gl_cv_pragma_columns = yes; then
-    PRAGMA_COLUMNS="#pragma COLUMNS 10000"
-  else
-    PRAGMA_COLUMNS=
-  fi
-  AC_SUBST([PRAGMA_COLUMNS])
-])
-
-# gl_CHECK_NEXT_HEADERS(HEADER1 HEADER2 ...)
-# ------------------------------------------
-# For each arg foo.h, if #include_next works, define NEXT_FOO_H to be
-# '<foo.h>'; otherwise define it to be
-# '"///usr/include/foo.h"', or whatever other absolute file name is suitable.
-# Also, if #include_next works as first preprocessing directive in a file,
-# define NEXT_AS_FIRST_DIRECTIVE_FOO_H to be '<foo.h>'; otherwise define it to
-# be
-# '"///usr/include/foo.h"', or whatever other absolute file name is suitable.
-# That way, a header file with the following line:
-#       #@INCLUDE_NEXT@ @NEXT_FOO_H@
-# or
-#       #@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_AS_FIRST_DIRECTIVE_FOO_H@
-# behaves (after sed substitution) as if it contained
-#       #include_next <foo.h>
-# even if the compiler does not support include_next.
-# The three "///" are to pacify Sun C 5.8, which otherwise would say
-# "warning: #include of /usr/include/... may be non-portable".
-# Use '""', not '<>', so that the /// cannot be confused with a C99 comment.
-# Note: This macro assumes that the header file is not empty after
-# preprocessing, i.e. it does not only define preprocessor macros but also
-# provides some type/enum definitions or function/variable declarations.
-#
-# This macro also checks whether each header exists, by invoking
-# AC_CHECK_HEADERS_ONCE or AC_CHECK_HEADERS on each argument.
-AC_DEFUN([gl_CHECK_NEXT_HEADERS],
-[
-  gl_NEXT_HEADERS_INTERNAL([$1], [check])
-])
-
-# gl_NEXT_HEADERS(HEADER1 HEADER2 ...)
-# ------------------------------------
-# Like gl_CHECK_NEXT_HEADERS, except do not check whether the headers exist.
-# This is suitable for headers like <stddef.h> that are standardized by C89
-# and therefore can be assumed to exist.
-AC_DEFUN([gl_NEXT_HEADERS],
-[
-  gl_NEXT_HEADERS_INTERNAL([$1], [assume])
-])
-
-# The guts of gl_CHECK_NEXT_HEADERS and gl_NEXT_HEADERS.
-AC_DEFUN([gl_NEXT_HEADERS_INTERNAL],
-[
-  AC_REQUIRE([gl_INCLUDE_NEXT])
-  AC_REQUIRE([AC_CANONICAL_HOST])
-
-  m4_if([$2], [check],
-    [AC_CHECK_HEADERS_ONCE([$1])
-    ])
-
-dnl FIXME: gl_next_header and gl_header_exists must be used unquoted
-dnl until we can assume autoconf 2.64 or newer.
-  m4_foreach_w([gl_HEADER_NAME], [$1],
-    [AS_VAR_PUSHDEF([gl_next_header],
-                    [gl_cv_next_]m4_defn([gl_HEADER_NAME]))
-     if test $gl_cv_have_include_next = yes; then
-       AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>'])
-     else
-       AC_CACHE_CHECK(
-         [absolute name of <]m4_defn([gl_HEADER_NAME])[>],
-         m4_defn([gl_next_header]),
-         [m4_if([$2], [check],
-            [AS_VAR_PUSHDEF([gl_header_exists],
-                            [ac_cv_header_]m4_defn([gl_HEADER_NAME]))
-             if test AS_VAR_GET(gl_header_exists) = yes; then
-             AS_VAR_POPDEF([gl_header_exists])
-            ])
-           gl_ABSOLUTE_HEADER_ONE(gl_HEADER_NAME)
-           AS_VAR_COPY([gl_header], [gl_cv_absolute_]AS_TR_SH(gl_HEADER_NAME))
-           AS_VAR_SET(gl_next_header, ['"'$gl_header'"'])
-          m4_if([$2], [check],
-            [else
-               AS_VAR_SET(gl_next_header, ['<'gl_HEADER_NAME'>'])
-             fi
-            ])
-         ])
-     fi
-     AC_SUBST(
-       AS_TR_CPP([NEXT_]m4_defn([gl_HEADER_NAME])),
-       [AS_VAR_GET(gl_next_header)])
-     if test $gl_cv_have_include_next = yes || test $gl_cv_have_include_next = buggy; then
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include_next'
-       gl_next_as_first_directive='<'gl_HEADER_NAME'>'
-     else
-       # INCLUDE_NEXT_AS_FIRST_DIRECTIVE='include'
-       gl_next_as_first_directive=AS_VAR_GET(gl_next_header)
-     fi
-     AC_SUBST(
-       AS_TR_CPP([NEXT_AS_FIRST_DIRECTIVE_]m4_defn([gl_HEADER_NAME])),
-       [$gl_next_as_first_directive])
-     AS_VAR_POPDEF([gl_next_header])])
-])
-
-# Autoconf 2.68 added warnings for our use of AC_COMPILE_IFELSE;
-# this fallback is safe for all earlier autoconf versions.
-m4_define_default([AC_LANG_DEFINES_PROVIDED])
diff --git a/m4/ioctl.m4 b/m4/ioctl.m4
deleted file mode 100644
index 5a31a396..00000000
--- a/m4/ioctl.m4
+++ /dev/null
@@ -1,41 +0,0 @@
-# ioctl.m4 serial 4
-dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_IOCTL],
-[
-  AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])
-  AC_REQUIRE([gl_HEADER_SYS_SOCKET])
-  HAVE_IOCTL=1
-  if test "$ac_cv_header_winsock2_h" = yes; then
-    dnl Even if the 'socket' module is not used here, another part of the
-    dnl application may use it and pass file descriptors that refer to
-    dnl sockets to the ioctl() function. So enable the support for sockets.
-    HAVE_IOCTL=0
-  else
-    AC_CHECK_FUNCS([ioctl])
-    dnl On glibc systems, the second parameter is 'unsigned long int request',
-    dnl not 'int request'. We cannot simply cast the function pointer, but
-    dnl instead need a wrapper.
-    AC_CACHE_CHECK([for ioctl with POSIX signature],
-      [gl_cv_func_ioctl_posix_signature],
-      [AC_COMPILE_IFELSE(
-         [AC_LANG_PROGRAM(
-            [[#include <sys/ioctl.h>]],
-            [[extern
-              #ifdef __cplusplus
-              "C"
-              #endif
-              int ioctl (int, int, ...);
-            ]])
-         ],
-         [gl_cv_func_ioctl_posix_signature=yes],
-         [gl_cv_func_ioctl_posix_signature=no])
-      ])
-    if test $gl_cv_func_ioctl_posix_signature != yes; then
-      REPLACE_IOCTL=1
-    fi
-  fi
-])
diff --git a/m4/lib-ignore.m4 b/m4/lib-ignore.m4
deleted file mode 100644
index 7baa5283..00000000
--- a/m4/lib-ignore.m4
+++ /dev/null
@@ -1,115 +0,0 @@
-# If possible, ignore libraries that are not depended on.
-
-dnl Copyright (C) 2006, 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl Written by Paul Eggert.
-
-# gl_IGNORE_UNUSED_LIBRARIES
-# --------------------------
-# Determines the option to be passed to the C/C++/Fortran compiler, so that it
-# omits unused libraries.
-# Example (on Solaris):
-# $ cc foo.c -lnsl; ldd ./a.out
-#         libnsl.so.1 =>   /lib/libnsl.so.1
-#         libc.so.1 =>     /lib/libc.so.1
-#         libmp.so.2 =>    /lib/libmp.so.2
-#         libmd.so.1 =>    /lib/libmd.so.1
-#         libscf.so.1 =>   /lib/libscf.so.1
-#         libdoor.so.1 =>  /lib/libdoor.so.1
-#         libuutil.so.1 =>         /lib/libuutil.so.1
-#         libgen.so.1 =>   /lib/libgen.so.1
-#         libm.so.2 =>     /lib/libm.so.2
-# $ cc foo.c -lnsl -Wl,-z,ignore; ldd ./a.out
-#         libc.so.1 =>     /lib/libc.so.1
-#         libm.so.2 =>     /lib/libm.so.2
-#
-# Note that the option works only for the C compiler, not for the C++
-# compiler:
-# - Sun C likes '-Wl,-z,ignore'.
-#   '-Qoption ld -z,ignore' is not accepted.
-#   '-z ignore' is accepted but has no effect.
-# - Sun C++ and Sun Fortran like '-Qoption ld -z,ignore'.
-#   '-Wl,-z,ignore' is not accepted.
-#   '-z ignore' is accepted but has no effect.
-#
-# Sets and substitutes a variable that depends on the current language:
-# - IGNORE_UNUSED_LIBRARIES_CFLAGS    for C
-# - IGNORE_UNUSED_LIBRARIES_CXXFLAGS  for C++
-# - IGNORE_UNUSED_LIBRARIES_FFLAGS    for Fortran
-#
-# Note that the option works only for direct invocation of the compiler, not
-# through libtool: When libtool is used to create a shared library, it will
-# honor and translate '-Wl,-z,ignore' to '-Qoption ld -z -Qoption ld ignore'
-# if needed, but it will drop a '-Qoption ld -z,ignore' on the command line.
-#
-AC_DEFUN([gl_IGNORE_UNUSED_LIBRARIES],
-[
-  AC_CACHE_CHECK([for []_AC_LANG[] compiler flag to ignore unused libraries],
-    [gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries],
-    [gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries=none
-     gl_saved_ldflags=$LDFLAGS
-     gl_saved_libs=$LIBS
-     # Link with -lm to detect binutils 2.16 bug with --as-needed; see
-     # <http://lists.gnu.org/archive/html/bug-gnulib/2006-06/msg00131.html>.
-     LIBS="$LIBS -lm"
-     # Use long option sequences like '-z ignore' to test for the feature,
-     # to forestall problems with linkers that have -z, -i, -g, -n, etc. flags.
-     # GCC + binutils likes '-Wl,--as-needed'.
-     # GCC + Solaris ld likes '-Wl,-z,ignore'.
-     # Sun C likes '-Wl,-z,ignore'. '-z ignore' is accepted but has no effect.
-     # Don't try bare '--as-needed'; nothing likes it and the HP-UX 11.11
-     # native cc issues annoying warnings and then ignores it,
-     # which would cause us to incorrectly conclude that it worked.
-     for gl_flags in _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS
-     do
-       LDFLAGS="$gl_flags $LDFLAGS"
-       AC_LINK_IFELSE([AC_LANG_PROGRAM()],
-         [gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries=$gl_flags])
-       LDFLAGS=$gl_saved_ldflags
-       test "$gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries" != none &&
-         break
-     done
-     LIBS=$gl_saved_libs
-    ])
-  IGNORE_UNUSED_LIBRARIES_[]_AC_LANG_PREFIX[]FLAGS=
-  if test "$gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries" != none; then
-    IGNORE_UNUSED_LIBRARIES_[]_AC_LANG_PREFIX[]FLAGS="$gl_cv_prog_[]_AC_LANG_ABBREV[]_ignore_unused_libraries"
-  fi
-  AC_SUBST([IGNORE_UNUSED_LIBRARIES_]_AC_LANG_PREFIX[FLAGS])
-])
-
-# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS
-# -----------------------------------
-# Expands to the language dependent options to be tried.
-AC_DEFUN([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS],
-[_AC_LANG_DISPATCH([$0], _AC_LANG, $@)])
-
-# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C)
-# --------------------------------------
-m4_define([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C)],
-[ '-Wl,--as-needed' \
-  '-Wl,-z,ignore' \
-  '-z ignore'
-])
-
-# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C++)
-# ----------------------------------------
-m4_define([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C++)],
-[ '-Wl,--as-needed' \
-  '-Qoption ld -z,ignore' \
-  '-Wl,-z,ignore' \
-  '-z ignore'
-])
-
-# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran 77)
-# -----------------------------------------------
-m4_copy([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(C++)],
-        [_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran 77)])
-
-# _gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran)
-# --------------------------------------------
-m4_copy([_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran 77)],
-        [_gl_IGNORE_UNUSED_LIBRARIES_OPTIONS(Fortran)])
diff --git a/m4/msvc-inval.m4 b/m4/msvc-inval.m4
deleted file mode 100644
index 7f26087e..00000000
--- a/m4/msvc-inval.m4
+++ /dev/null
@@ -1,19 +0,0 @@
-# msvc-inval.m4 serial 1
-dnl Copyright (C) 2011-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_MSVC_INVAL],
-[
-  AC_CHECK_FUNCS_ONCE([_set_invalid_parameter_handler])
-  if test $ac_cv_func__set_invalid_parameter_handler = yes; then
-    HAVE_MSVC_INVALID_PARAMETER_HANDLER=1
-    AC_DEFINE([HAVE_MSVC_INVALID_PARAMETER_HANDLER], [1],
-      [Define to 1 on MSVC platforms that have the "invalid parameter handler"
-       concept.])
-  else
-    HAVE_MSVC_INVALID_PARAMETER_HANDLER=0
-  fi
-  AC_SUBST([HAVE_MSVC_INVALID_PARAMETER_HANDLER])
-])
diff --git a/m4/msvc-nothrow.m4 b/m4/msvc-nothrow.m4
deleted file mode 100644
index 9e32c171..00000000
--- a/m4/msvc-nothrow.m4
+++ /dev/null
@@ -1,10 +0,0 @@
-# msvc-nothrow.m4 serial 1
-dnl Copyright (C) 2011-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_MSVC_NOTHROW],
-[
-  AC_REQUIRE([gl_MSVC_INVAL])
-])
diff --git a/m4/off_t.m4 b/m4/off_t.m4
deleted file mode 100644
index f5885b34..00000000
--- a/m4/off_t.m4
+++ /dev/null
@@ -1,18 +0,0 @@
-# off_t.m4 serial 1
-dnl Copyright (C) 2012-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl Check whether to override the 'off_t' type.
-dnl Set WINDOWS_64_BIT_OFF_T.
-
-AC_DEFUN([gl_TYPE_OFF_T],
-[
-  m4_ifdef([gl_LARGEFILE], [
-    AC_REQUIRE([gl_LARGEFILE])
-  ], [
-    WINDOWS_64_BIT_OFF_T=0
-  ])
-  AC_SUBST([WINDOWS_64_BIT_OFF_T])
-])
diff --git a/m4/onceonly.m4 b/m4/onceonly.m4
deleted file mode 100644
index 15f94cef..00000000
--- a/m4/onceonly.m4
+++ /dev/null
@@ -1,104 +0,0 @@
-# onceonly.m4 serial 9
-dnl Copyright (C) 2002-2003, 2005-2006, 2008-2014 Free Software Foundation,
-dnl Inc.
-dnl
-dnl This file is free software; you can redistribute it and/or modify
-dnl it under the terms of the GNU General Public License as published by
-dnl the Free Software Foundation; either version 3 of the License, or
-dnl (at your option) any later version.
-dnl
-dnl This file is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
-dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-dnl GNU General Public License for more details.
-dnl
-dnl You should have received a copy of the GNU General Public License
-dnl along with this file.  If not, see <http://www.gnu.org/licenses/>.
-dnl
-dnl As a special exception to the GNU General Public License,
-dnl this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-dnl This file defines some "once only" variants of standard autoconf macros.
-dnl   AC_CHECK_HEADERS_ONCE          like  AC_CHECK_HEADERS
-dnl   AC_CHECK_FUNCS_ONCE            like  AC_CHECK_FUNCS
-dnl   AC_CHECK_DECLS_ONCE            like  AC_CHECK_DECLS
-dnl   AC_REQUIRE([AC_FUNC_STRCOLL])  like  AC_FUNC_STRCOLL
-dnl The advantage is that the check for each of the headers/functions/decls
-dnl will be put only once into the 'configure' file. It keeps the size of
-dnl the 'configure' file down, and avoids redundant output when 'configure'
-dnl is run.
-dnl The drawback is that the checks cannot be conditionalized. If you write
-dnl   if some_condition; then gl_CHECK_HEADERS(stdlib.h); fi
-dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to
-dnl empty, and the check will be inserted before the body of the AC_DEFUNed
-dnl function.
-
-dnl The original code implemented AC_CHECK_HEADERS_ONCE and AC_CHECK_FUNCS_ONCE
-dnl in terms of AC_DEFUN and AC_REQUIRE. This implementation uses diversions to
-dnl named sections DEFAULTS and INIT_PREPARE in order to check all requested
-dnl headers at once, thus reducing the size of 'configure'. It is known to work
-dnl with autoconf 2.57..2.62 at least . The size reduction is ca. 9%.
-
-dnl Autoconf version 2.59 plus gnulib is required; this file is not needed
-dnl with Autoconf 2.60 or greater. But note that autoconf's implementation of
-dnl AC_CHECK_DECLS_ONCE expects a comma-separated list of symbols as first
-dnl argument!
-AC_PREREQ([2.59])
-
-# AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of
-# AC_CHECK_HEADERS(HEADER1 HEADER2 ...).
-AC_DEFUN([AC_CHECK_HEADERS_ONCE], [
-  :
-  m4_foreach_w([gl_HEADER_NAME], [$1], [
-    AC_DEFUN([gl_CHECK_HEADER_]m4_quote(m4_translit(gl_HEADER_NAME,
-                                                    [./-], [___])), [
-      m4_divert_text([INIT_PREPARE],
-        [gl_header_list="$gl_header_list gl_HEADER_NAME"])
-      gl_HEADERS_EXPANSION
-      AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_HEADER_NAME])),
-        [Define to 1 if you have the <]m4_defn([gl_HEADER_NAME])[> header file.])
-    ])
-    AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(m4_translit(gl_HEADER_NAME,
-                                                      [./-], [___])))
-  ])
-])
-m4_define([gl_HEADERS_EXPANSION], [
-  m4_divert_text([DEFAULTS], [gl_header_list=])
-  AC_CHECK_HEADERS([$gl_header_list])
-  m4_define([gl_HEADERS_EXPANSION], [])
-])
-
-# AC_CHECK_FUNCS_ONCE(FUNC1 FUNC2 ...) is a once-only variant of
-# AC_CHECK_FUNCS(FUNC1 FUNC2 ...).
-AC_DEFUN([AC_CHECK_FUNCS_ONCE], [
-  :
-  m4_foreach_w([gl_FUNC_NAME], [$1], [
-    AC_DEFUN([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]), [
-      m4_divert_text([INIT_PREPARE],
-        [gl_func_list="$gl_func_list gl_FUNC_NAME"])
-      gl_FUNCS_EXPANSION
-      AH_TEMPLATE(AS_TR_CPP([HAVE_]m4_defn([gl_FUNC_NAME])),
-        [Define to 1 if you have the ']m4_defn([gl_FUNC_NAME])[' function.])
-    ])
-    AC_REQUIRE([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]))
-  ])
-])
-m4_define([gl_FUNCS_EXPANSION], [
-  m4_divert_text([DEFAULTS], [gl_func_list=])
-  AC_CHECK_FUNCS([$gl_func_list])
-  m4_define([gl_FUNCS_EXPANSION], [])
-])
-
-# AC_CHECK_DECLS_ONCE(DECL1 DECL2 ...) is a once-only variant of
-# AC_CHECK_DECLS(DECL1, DECL2, ...).
-AC_DEFUN([AC_CHECK_DECLS_ONCE], [
-  :
-  m4_foreach_w([gl_DECL_NAME], [$1], [
-    AC_DEFUN([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]), [
-      AC_CHECK_DECLS(m4_defn([gl_DECL_NAME]))
-    ])
-    AC_REQUIRE([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]))
-  ])
-])
diff --git a/m4/posix_openpt.m4 b/m4/posix_openpt.m4
deleted file mode 100644
index 252a074d..00000000
--- a/m4/posix_openpt.m4
+++ /dev/null
@@ -1,19 +0,0 @@
-# posix_openpt.m4 serial 2
-dnl Copyright (C) 2011-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_POSIX_OPENPT],
-[
-  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
-
-  dnl Persuade Solaris <stdlib.h> to declare posix_openpt().
-  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-
-  AC_CHECK_FUNCS_ONCE([posix_openpt])
-  if test $ac_cv_func_posix_openpt != yes; then
-    dnl The system does not have posix_openpt.
-    HAVE_POSIX_OPENPT=0
-  fi
-])
diff --git a/m4/pty.m4 b/m4/pty.m4
deleted file mode 100644
index c68cca75..00000000
--- a/m4/pty.m4
+++ /dev/null
@@ -1,148 +0,0 @@
-# pty.m4 serial 13
-dnl Copyright (C) 2010-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-# gl_PTY_LIB
-# ----------
-# Define automake variable PTY_LIB to the library needed (if any).
-AC_DEFUN([gl_PTY_LIB],
-[
-  # Check for the library required for forkpty.
-  PTY_LIB=
-  save_LIBS="$LIBS"
-  AC_SEARCH_LIBS([forkpty], [util],
-    [if test "$ac_cv_search_forkpty" != "none required"; then
-       PTY_LIB="$ac_cv_search_forkpty"
-     fi])
-  LIBS="$save_LIBS"
-  AC_SUBST([PTY_LIB])
-])
-
-AC_DEFUN([gl_FUNC_FORKPTY],
-[
-  AC_REQUIRE([gl_PTY_LIB])
-  AC_REQUIRE([gl_PTY_H])
-
-  dnl We assume that forkpty exists (possibly in libc, possibly in libutil)
-  dnl if and only if it is declared.
-  AC_CHECK_DECLS([forkpty],,, [[
-/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0.  */
-#include <sys/types.h>
-#if HAVE_PTY_H
-# include <pty.h>
-#endif
-#if HAVE_UTIL_H
-# include <util.h>
-#endif
-#if HAVE_LIBUTIL_H
-# include <libutil.h>
-#endif
-]])
-  if test $ac_cv_have_decl_forkpty = yes; then
-    dnl The system has forkpty.
-    dnl Prefer glibc's const-safe prototype, if available.
-    AC_CACHE_CHECK([for const-safe forkpty signature],
-      [gl_cv_func_forkpty_const],
-      [AC_COMPILE_IFELSE(
-        [AC_LANG_PROGRAM([[
-/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0.  */
-#include <sys/types.h>
-#if HAVE_PTY_H
-# include <pty.h>
-#endif
-#if HAVE_UTIL_H
-# include <util.h>
-#endif
-#if HAVE_LIBUTIL_H
-# include <libutil.h>
-#endif
-          ]], [[
-            int forkpty (int *, char *, struct termios const *,
-                         struct winsize const *);
-          ]])
-        ],
-        [gl_cv_func_forkpty_const=yes], [gl_cv_func_forkpty_const=no])
-      ])
-    if test $gl_cv_func_forkpty_const != yes; then
-      REPLACE_FORKPTY=1
-    fi
-  else
-    dnl The system does not have forkpty.
-    HAVE_FORKPTY=0
-  fi
-  AC_DEFINE_UNQUOTED([HAVE_FORKPTY], [$HAVE_FORKPTY],
-    [Define to 1 if the system has the 'forkpty' function.])
-])
-
-AC_DEFUN([gl_FUNC_OPENPTY],
-[
-  AC_REQUIRE([gl_PTY_LIB])
-  AC_REQUIRE([gl_PTY_H])
-
-  dnl Persuade Solaris <stdlib.h> to declare posix_openpt().
-  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-
-  dnl We assume that openpty exists (possibly in libc, possibly in libutil)
-  dnl if and only if it is declared.
-  AC_CHECK_DECLS([openpty],,, [[
-/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0.  */
-#include <sys/types.h>
-#if HAVE_PTY_H
-# include <pty.h>
-#endif
-#if HAVE_UTIL_H
-# include <util.h>
-#endif
-#if HAVE_LIBUTIL_H
-# include <libutil.h>
-#endif
-]])
-  if test $ac_cv_have_decl_openpty = yes; then
-    AC_DEFINE([HAVE_OPENPTY], [1],
-      [Define to 1 if the system has the 'openpty' function.])
-    dnl The system has openpty.
-    dnl Prefer glibc's const-safe prototype, if available.
-    AC_CACHE_CHECK([for const-safe openpty signature],
-      [gl_cv_func_openpty_const],
-      [AC_COMPILE_IFELSE(
-        [AC_LANG_PROGRAM([[
-/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0.  */
-#include <sys/types.h>
-#if HAVE_PTY_H
-# include <pty.h>
-#endif
-#if HAVE_UTIL_H
-# include <util.h>
-#endif
-#if HAVE_LIBUTIL_H
-# include <libutil.h>
-#endif
-          ]], [[
-            int openpty (int *, int *, char *, struct termios const *,
-                       struct winsize const *);
-          ]])
-        ],
-        [gl_cv_func_openpty_const=yes], [gl_cv_func_openpty_const=no])
-      ])
-    if test $gl_cv_func_openpty_const != yes; then
-      REPLACE_OPENPTY=1
-    fi
-  else
-    dnl The system does not have openpty.
-    HAVE_OPENPTY=0
-    dnl Prerequisites of lib/openpty.c in this case.
-    AC_CHECK_FUNCS([_getpty posix_openpt])
-  fi
-])
-
-AC_DEFUN([gl_FUNC_LOGIN_TTY],
-[
-  AC_REQUIRE([gl_PTY_LIB])
-
-  gl_saved_libs="$LIBS"
-  LIBS="$LIBS $PTY_LIB"
-  AC_CHECK_FUNCS([login_tty])
-  LIBS="$gl_saved_LIBS"
-])
diff --git a/m4/pty_h.m4 b/m4/pty_h.m4
deleted file mode 100644
index d3cc2e7e..00000000
--- a/m4/pty_h.m4
+++ /dev/null
@@ -1,69 +0,0 @@
-# pty_h.m4 serial 10
-dnl Copyright (C) 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-# gl_PTY_H
-# --------
-# Set up the GNU-like <pty.h> replacement header.
-AC_DEFUN_ONCE([gl_PTY_H],
-[
-  AC_REQUIRE([gl_PTY_H_DEFAULTS])
-
-  # Make sure that pty.h provides forkpty, or setup the replacement.
-  AC_CHECK_HEADERS_ONCE([pty.h])
-  if test $ac_cv_header_pty_h != yes; then
-    HAVE_PTY_H=0
-    AC_CHECK_HEADERS([util.h libutil.h])
-    if test $ac_cv_header_util_h = yes; then
-      HAVE_UTIL_H=1
-    fi
-    if test $ac_cv_header_libutil_h = yes; then
-      HAVE_LIBUTIL_H=1
-    fi
-  else # Have <pty.h>, assume forkpty is declared there.
-    HAVE_PTY_H=1
-  fi
-  AC_SUBST([HAVE_PTY_H])
-  dnl <pty.h> is always overridden, because of GNULIB_POSIXCHECK.
-  gl_CHECK_NEXT_HEADERS([pty.h])
-
-  dnl Check for declarations of anything we want to poison if the
-  dnl corresponding gnulib module is not in use.
-  gl_WARN_ON_USE_PREPARE([[
-/* <sys/types.h> is a prerequisite of <libutil.h> on FreeBSD 8.0.  */
-#include <sys/types.h>
-#if HAVE_PTY_H
-# include <pty.h>
-#endif
-#if HAVE_UTIL_H
-# include <util.h>
-#endif
-#if HAVE_LIBUTIL_H
-# include <libutil.h>
-#endif
-    ]], [forkpty openpty])
-])
-
-AC_DEFUN([gl_PTY_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_PTY_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_PTY_H_DEFAULTS],
-[
-  GNULIB_FORKPTY=0;     AC_SUBST([GNULIB_FORKPTY])
-  GNULIB_OPENPTY=0;     AC_SUBST([GNULIB_OPENPTY])
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  HAVE_UTIL_H=0;        AC_SUBST([HAVE_UTIL_H])
-  HAVE_LIBUTIL_H=0;     AC_SUBST([HAVE_LIBUTIL_H])
-  HAVE_FORKPTY=1;       AC_SUBST([HAVE_FORKPTY])
-  HAVE_OPENPTY=1;       AC_SUBST([HAVE_OPENPTY])
-  REPLACE_FORKPTY=0;    AC_SUBST([REPLACE_FORKPTY])
-  REPLACE_OPENPTY=0;    AC_SUBST([REPLACE_OPENPTY])
-])
diff --git a/m4/socklen.m4 b/m4/socklen.m4
deleted file mode 100644
index 4c07f864..00000000
--- a/m4/socklen.m4
+++ /dev/null
@@ -1,77 +0,0 @@
-# socklen.m4 serial 10
-dnl Copyright (C) 2005-2007, 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Albert Chin, Windows fixes from Simon Josefsson.
-
-dnl Check for socklen_t: historically on BSD it is an int, and in
-dnl POSIX 1g it is a type of its own, but some platforms use different
-dnl types for the argument to getsockopt, getpeername, etc.:
-dnl HP-UX 10.20, IRIX 6.5, OSF/1 4.0, Interix 3.5, BeOS.
-dnl So we have to test to find something that will work.
-
-AC_DEFUN([gl_TYPE_SOCKLEN_T],
-  [AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])dnl
-   AC_CHECK_TYPE([socklen_t], ,
-     [AC_MSG_CHECKING([for socklen_t equivalent])
-      AC_CACHE_VAL([gl_cv_socklen_t_equiv],
-        [# Systems have either "struct sockaddr *" or
-         # "void *" as the second argument to getpeername
-         gl_cv_socklen_t_equiv=
-         for arg2 in "struct sockaddr" void; do
-           for t in int size_t "unsigned int" "long int" "unsigned long int"; do
-             AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
-                 [[#include <sys/types.h>
-                   #include <sys/socket.h>
-
-                   int getpeername (int, $arg2 *, $t *);]],
-                 [[$t len;
-                  getpeername (0, 0, &len);]])],
-               [gl_cv_socklen_t_equiv="$t"])
-             test "$gl_cv_socklen_t_equiv" != "" && break
-           done
-           test "$gl_cv_socklen_t_equiv" != "" && break
-         done
-      ])
-      if test "$gl_cv_socklen_t_equiv" = ""; then
-        AC_MSG_ERROR([Cannot find a type to use in place of socklen_t])
-      fi
-      AC_MSG_RESULT([$gl_cv_socklen_t_equiv])
-      AC_DEFINE_UNQUOTED([socklen_t], [$gl_cv_socklen_t_equiv],
-        [type to use in place of socklen_t if not defined])],
-     [gl_SOCKET_HEADERS])])
-
-dnl On mingw32, socklen_t is in ws2tcpip.h ('int'), so we try to find
-dnl it there too.  But on Cygwin, wc2tcpip.h must not be included.  Users
-dnl of this module should use the same include pattern as gl_SOCKET_HEADERS.
-dnl When you change this macro, keep also in sync:
-dnl   - gl_CHECK_SOCKET_HEADERS,
-dnl   - the Include section of modules/socklen.
-AC_DEFUN([gl_SOCKET_HEADERS],
-[
-/* <sys/types.h> is not needed according to POSIX, but the
-   <sys/socket.h> in i386-unknown-freebsd4.10 and
-   powerpc-apple-darwin5.5 required it. */
-#include <sys/types.h>
-#if HAVE_SYS_SOCKET_H
-# include <sys/socket.h>
-#elif HAVE_WS2TCPIP_H
-# include <ws2tcpip.h>
-#endif
-])
-
-dnl Tests for the existence of the header for socket facilities.
-dnl Defines the C macros HAVE_SYS_SOCKET_H, HAVE_WS2TCPIP_H.
-dnl This macro must match gl_SOCKET_HEADERS.
-AC_DEFUN([gl_CHECK_SOCKET_HEADERS],
-  [AC_CHECK_HEADERS_ONCE([sys/socket.h])
-   if test $ac_cv_header_sys_socket_h = no; then
-     dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
-     dnl the check for those headers unconditional; yet cygwin reports
-     dnl that the headers are present but cannot be compiled (since on
-     dnl cygwin, all socket information should come from sys/socket.h).
-     AC_CHECK_HEADERS([ws2tcpip.h])
-   fi
-  ])
diff --git a/m4/sockpfaf.m4 b/m4/sockpfaf.m4
deleted file mode 100644
index 31d436f0..00000000
--- a/m4/sockpfaf.m4
+++ /dev/null
@@ -1,87 +0,0 @@
-# sockpfaf.m4 serial 8
-dnl Copyright (C) 2004, 2006, 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl Test for some common socket protocol families (PF_INET, PF_INET6, ...)
-dnl and some common address families (AF_INET, AF_INET6, ...).
-dnl This test assumes that a system supports an address family if and only if
-dnl it supports the corresponding protocol family.
-
-dnl From Bruno Haible.
-
-AC_DEFUN([gl_SOCKET_FAMILIES],
-[
-  AC_REQUIRE([gl_HEADER_SYS_SOCKET])
-  AC_CHECK_HEADERS_ONCE([netinet/in.h])
-
-  AC_MSG_CHECKING([for IPv4 sockets])
-  AC_CACHE_VAL([gl_cv_socket_ipv4],
-    [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#endif]],
-[[int x = AF_INET; struct in_addr y; struct sockaddr_in z;
- if (&x && &y && &z) return 0;]])],
-       gl_cv_socket_ipv4=yes, gl_cv_socket_ipv4=no)])
-  AC_MSG_RESULT([$gl_cv_socket_ipv4])
-  if test $gl_cv_socket_ipv4 = yes; then
-    AC_DEFINE([HAVE_IPV4], [1], [Define to 1 if <sys/socket.h> defines AF_INET.])
-  fi
-
-  AC_MSG_CHECKING([for IPv6 sockets])
-  AC_CACHE_VAL([gl_cv_socket_ipv6],
-    [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_NETINET_IN_H
-#include <netinet/in.h>
-#endif
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#endif
-#ifdef HAVE_WS2TCPIP_H
-#include <ws2tcpip.h>
-#endif]],
-[[int x = AF_INET6; struct in6_addr y; struct sockaddr_in6 z;
- if (&x && &y && &z) return 0;]])],
-       gl_cv_socket_ipv6=yes, gl_cv_socket_ipv6=no)])
-  AC_MSG_RESULT([$gl_cv_socket_ipv6])
-  if test $gl_cv_socket_ipv6 = yes; then
-    AC_DEFINE([HAVE_IPV6], [1], [Define to 1 if <sys/socket.h> defines AF_INET6.])
-  fi
-])
-
-AC_DEFUN([gl_SOCKET_FAMILY_UNIX],
-[
-  AC_REQUIRE([gl_HEADER_SYS_SOCKET])
-  AC_CHECK_HEADERS_ONCE([sys/un.h])
-
-  AC_MSG_CHECKING([for UNIX domain sockets])
-  AC_CACHE_VAL([gl_cv_socket_unix],
-    [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_SYS_UN_H
-#include <sys/un.h>
-#endif
-#ifdef HAVE_WINSOCK2_H
-#include <winsock2.h>
-#endif]],
-[[int x = AF_UNIX; struct sockaddr_un y;
- if (&x && &y) return 0;]])],
-       gl_cv_socket_unix=yes, gl_cv_socket_unix=no)])
-  AC_MSG_RESULT([$gl_cv_socket_unix])
-  if test $gl_cv_socket_unix = yes; then
-    AC_DEFINE([HAVE_UNIXSOCKET], [1], [Define to 1 if <sys/socket.h> defines AF_UNIX.])
-  fi
-])
diff --git a/m4/ssize_t.m4 b/m4/ssize_t.m4
deleted file mode 100644
index fbe1d068..00000000
--- a/m4/ssize_t.m4
+++ /dev/null
@@ -1,23 +0,0 @@
-# ssize_t.m4 serial 5 (gettext-0.18.2)
-dnl Copyright (C) 2001-2003, 2006, 2010-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Bruno Haible.
-dnl Test whether ssize_t is defined.
-
-AC_DEFUN([gt_TYPE_SSIZE_T],
-[
-  AC_CACHE_CHECK([for ssize_t], [gt_cv_ssize_t],
-    [AC_COMPILE_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[#include <sys/types.h>]],
-          [[int x = sizeof (ssize_t *) + sizeof (ssize_t);
-            return !x;]])],
-       [gt_cv_ssize_t=yes], [gt_cv_ssize_t=no])])
-  if test $gt_cv_ssize_t = no; then
-    AC_DEFINE([ssize_t], [int],
-              [Define as a signed type of the same size as size_t.])
-  fi
-])
diff --git a/m4/stdalign.m4 b/m4/stdalign.m4
deleted file mode 100644
index 9efafe5c..00000000
--- a/m4/stdalign.m4
+++ /dev/null
@@ -1,53 +0,0 @@
-# Check for stdalign.h that conforms to C11.
-
-dnl Copyright 2011-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-# Prepare for substituting <stdalign.h> if it is not supported.
-
-AC_DEFUN([gl_STDALIGN_H],
-[
-  AC_CACHE_CHECK([for working stdalign.h],
-    [gl_cv_header_working_stdalign_h],
-    [AC_COMPILE_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[#include <stdalign.h>
-            #include <stddef.h>
-
-            /* Test that alignof yields a result consistent with offsetof.
-               This catches GCC bug 52023
-               <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
-            #ifdef __cplusplus
-               template <class t> struct alignof_helper { char a; t b; };
-            # define ao(type) offsetof (alignof_helper<type>, b)
-            #else
-            # define ao(type) offsetof (struct { char a; type b; }, b)
-            #endif
-            char test_double[ao (double) % _Alignof (double) == 0 ? 1 : -1];
-            char test_long[ao (long int) % _Alignof (long int) == 0 ? 1 : -1];
-            char test_alignof[alignof (double) == _Alignof (double) ? 1 : -1];
-
-            /* Test _Alignas only on platforms where gnulib can help.  */
-            #if \
-                ((defined __cplusplus && 201103 <= __cplusplus) \
-                 || __GNUC__ || __IBMC__ || __IBMCPP__ || __ICC \
-                 || 0x5110 <= __SUNPRO_C || 1300 <= _MSC_VER)
-              struct alignas_test { char c; char alignas (8) alignas_8; };
-              char test_alignas[offsetof (struct alignas_test, alignas_8) == 8
-                                ? 1 : -1];
-            #endif
-          ]])],
-       [gl_cv_header_working_stdalign_h=yes],
-       [gl_cv_header_working_stdalign_h=no])])
-
-  if test $gl_cv_header_working_stdalign_h = yes; then
-    STDALIGN_H=''
-  else
-    STDALIGN_H='stdalign.h'
-  fi
-
-  AC_SUBST([STDALIGN_H])
-  AM_CONDITIONAL([GL_GENERATE_STDALIGN_H], [test -n "$STDALIGN_H"])
-])
diff --git a/m4/stddef_h.m4 b/m4/stddef_h.m4
deleted file mode 100644
index c555e295..00000000
--- a/m4/stddef_h.m4
+++ /dev/null
@@ -1,47 +0,0 @@
-dnl A placeholder for POSIX 2008 <stddef.h>, for platforms that have issues.
-# stddef_h.m4 serial 4
-dnl Copyright (C) 2009-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_STDDEF_H],
-[
-  AC_REQUIRE([gl_STDDEF_H_DEFAULTS])
-  AC_REQUIRE([gt_TYPE_WCHAR_T])
-  STDDEF_H=
-  if test $gt_cv_c_wchar_t = no; then
-    HAVE_WCHAR_T=0
-    STDDEF_H=stddef.h
-  fi
-  AC_CACHE_CHECK([whether NULL can be used in arbitrary expressions],
-    [gl_cv_decl_null_works],
-    [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stddef.h>
-      int test[2 * (sizeof NULL == sizeof (void *)) -1];
-]])],
-      [gl_cv_decl_null_works=yes],
-      [gl_cv_decl_null_works=no])])
-  if test $gl_cv_decl_null_works = no; then
-    REPLACE_NULL=1
-    STDDEF_H=stddef.h
-  fi
-  AC_SUBST([STDDEF_H])
-  AM_CONDITIONAL([GL_GENERATE_STDDEF_H], [test -n "$STDDEF_H"])
-  if test -n "$STDDEF_H"; then
-    gl_NEXT_HEADERS([stddef.h])
-  fi
-])
-
-AC_DEFUN([gl_STDDEF_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_STDDEF_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-])
-
-AC_DEFUN([gl_STDDEF_H_DEFAULTS],
-[
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  REPLACE_NULL=0;                AC_SUBST([REPLACE_NULL])
-  HAVE_WCHAR_T=1;                AC_SUBST([HAVE_WCHAR_T])
-])
diff --git a/m4/stdlib_h.m4 b/m4/stdlib_h.m4
deleted file mode 100644
index 03b448b9..00000000
--- a/m4/stdlib_h.m4
+++ /dev/null
@@ -1,117 +0,0 @@
-# stdlib_h.m4 serial 42
-dnl Copyright (C) 2007-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_STDLIB_H],
-[
-  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
-  gl_NEXT_HEADERS([stdlib.h])
-
-  dnl Check for declarations of anything we want to poison if the
-  dnl corresponding gnulib module is not in use, and which is not
-  dnl guaranteed by C89.
-  gl_WARN_ON_USE_PREPARE([[#include <stdlib.h>
-#if HAVE_SYS_LOADAVG_H
-# include <sys/loadavg.h>
-#endif
-#if HAVE_RANDOM_H
-# include <random.h>
-#endif
-    ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt
-    initstate initstate_r mkdtemp mkostemp mkostemps mkstemp mkstemps
-    posix_openpt ptsname ptsname_r random random_r realpath rpmatch
-    secure_getenv setenv setstate setstate_r srandom srandom_r
-    strtod strtoll strtoull unlockpt unsetenv])
-])
-
-AC_DEFUN([gl_STDLIB_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_STDLIB_H_DEFAULTS],
-[
-  GNULIB__EXIT=0;         AC_SUBST([GNULIB__EXIT])
-  GNULIB_ATOLL=0;         AC_SUBST([GNULIB_ATOLL])
-  GNULIB_CALLOC_POSIX=0;  AC_SUBST([GNULIB_CALLOC_POSIX])
-  GNULIB_CANONICALIZE_FILE_NAME=0;  AC_SUBST([GNULIB_CANONICALIZE_FILE_NAME])
-  GNULIB_GETLOADAVG=0;    AC_SUBST([GNULIB_GETLOADAVG])
-  GNULIB_GETSUBOPT=0;     AC_SUBST([GNULIB_GETSUBOPT])
-  GNULIB_GRANTPT=0;       AC_SUBST([GNULIB_GRANTPT])
-  GNULIB_MALLOC_POSIX=0;  AC_SUBST([GNULIB_MALLOC_POSIX])
-  GNULIB_MBTOWC=0;        AC_SUBST([GNULIB_MBTOWC])
-  GNULIB_MKDTEMP=0;       AC_SUBST([GNULIB_MKDTEMP])
-  GNULIB_MKOSTEMP=0;      AC_SUBST([GNULIB_MKOSTEMP])
-  GNULIB_MKOSTEMPS=0;     AC_SUBST([GNULIB_MKOSTEMPS])
-  GNULIB_MKSTEMP=0;       AC_SUBST([GNULIB_MKSTEMP])
-  GNULIB_MKSTEMPS=0;      AC_SUBST([GNULIB_MKSTEMPS])
-  GNULIB_POSIX_OPENPT=0;  AC_SUBST([GNULIB_POSIX_OPENPT])
-  GNULIB_PTSNAME=0;       AC_SUBST([GNULIB_PTSNAME])
-  GNULIB_PTSNAME_R=0;     AC_SUBST([GNULIB_PTSNAME_R])
-  GNULIB_PUTENV=0;        AC_SUBST([GNULIB_PUTENV])
-  GNULIB_RANDOM=0;        AC_SUBST([GNULIB_RANDOM])
-  GNULIB_RANDOM_R=0;      AC_SUBST([GNULIB_RANDOM_R])
-  GNULIB_REALLOC_POSIX=0; AC_SUBST([GNULIB_REALLOC_POSIX])
-  GNULIB_REALPATH=0;      AC_SUBST([GNULIB_REALPATH])
-  GNULIB_RPMATCH=0;       AC_SUBST([GNULIB_RPMATCH])
-  GNULIB_SECURE_GETENV=0; AC_SUBST([GNULIB_SECURE_GETENV])
-  GNULIB_SETENV=0;        AC_SUBST([GNULIB_SETENV])
-  GNULIB_STRTOD=0;        AC_SUBST([GNULIB_STRTOD])
-  GNULIB_STRTOLL=0;       AC_SUBST([GNULIB_STRTOLL])
-  GNULIB_STRTOULL=0;      AC_SUBST([GNULIB_STRTOULL])
-  GNULIB_SYSTEM_POSIX=0;  AC_SUBST([GNULIB_SYSTEM_POSIX])
-  GNULIB_UNLOCKPT=0;      AC_SUBST([GNULIB_UNLOCKPT])
-  GNULIB_UNSETENV=0;      AC_SUBST([GNULIB_UNSETENV])
-  GNULIB_WCTOMB=0;        AC_SUBST([GNULIB_WCTOMB])
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  HAVE__EXIT=1;              AC_SUBST([HAVE__EXIT])
-  HAVE_ATOLL=1;              AC_SUBST([HAVE_ATOLL])
-  HAVE_CANONICALIZE_FILE_NAME=1;  AC_SUBST([HAVE_CANONICALIZE_FILE_NAME])
-  HAVE_DECL_GETLOADAVG=1;    AC_SUBST([HAVE_DECL_GETLOADAVG])
-  HAVE_GETSUBOPT=1;          AC_SUBST([HAVE_GETSUBOPT])
-  HAVE_GRANTPT=1;            AC_SUBST([HAVE_GRANTPT])
-  HAVE_MKDTEMP=1;            AC_SUBST([HAVE_MKDTEMP])
-  HAVE_MKOSTEMP=1;           AC_SUBST([HAVE_MKOSTEMP])
-  HAVE_MKOSTEMPS=1;          AC_SUBST([HAVE_MKOSTEMPS])
-  HAVE_MKSTEMP=1;            AC_SUBST([HAVE_MKSTEMP])
-  HAVE_MKSTEMPS=1;           AC_SUBST([HAVE_MKSTEMPS])
-  HAVE_POSIX_OPENPT=1;       AC_SUBST([HAVE_POSIX_OPENPT])
-  HAVE_PTSNAME=1;            AC_SUBST([HAVE_PTSNAME])
-  HAVE_PTSNAME_R=1;          AC_SUBST([HAVE_PTSNAME_R])
-  HAVE_RANDOM=1;             AC_SUBST([HAVE_RANDOM])
-  HAVE_RANDOM_H=1;           AC_SUBST([HAVE_RANDOM_H])
-  HAVE_RANDOM_R=1;           AC_SUBST([HAVE_RANDOM_R])
-  HAVE_REALPATH=1;           AC_SUBST([HAVE_REALPATH])
-  HAVE_RPMATCH=1;            AC_SUBST([HAVE_RPMATCH])
-  HAVE_SECURE_GETENV=1;      AC_SUBST([HAVE_SECURE_GETENV])
-  HAVE_SETENV=1;             AC_SUBST([HAVE_SETENV])
-  HAVE_DECL_SETENV=1;        AC_SUBST([HAVE_DECL_SETENV])
-  HAVE_STRTOD=1;             AC_SUBST([HAVE_STRTOD])
-  HAVE_STRTOLL=1;            AC_SUBST([HAVE_STRTOLL])
-  HAVE_STRTOULL=1;           AC_SUBST([HAVE_STRTOULL])
-  HAVE_STRUCT_RANDOM_DATA=1; AC_SUBST([HAVE_STRUCT_RANDOM_DATA])
-  HAVE_SYS_LOADAVG_H=0;      AC_SUBST([HAVE_SYS_LOADAVG_H])
-  HAVE_UNLOCKPT=1;           AC_SUBST([HAVE_UNLOCKPT])
-  HAVE_DECL_UNSETENV=1;      AC_SUBST([HAVE_DECL_UNSETENV])
-  REPLACE_CALLOC=0;          AC_SUBST([REPLACE_CALLOC])
-  REPLACE_CANONICALIZE_FILE_NAME=0;  AC_SUBST([REPLACE_CANONICALIZE_FILE_NAME])
-  REPLACE_MALLOC=0;          AC_SUBST([REPLACE_MALLOC])
-  REPLACE_MBTOWC=0;          AC_SUBST([REPLACE_MBTOWC])
-  REPLACE_MKSTEMP=0;         AC_SUBST([REPLACE_MKSTEMP])
-  REPLACE_PTSNAME=0;         AC_SUBST([REPLACE_PTSNAME])
-  REPLACE_PTSNAME_R=0;       AC_SUBST([REPLACE_PTSNAME_R])
-  REPLACE_PUTENV=0;          AC_SUBST([REPLACE_PUTENV])
-  REPLACE_RANDOM_R=0;        AC_SUBST([REPLACE_RANDOM_R])
-  REPLACE_REALLOC=0;         AC_SUBST([REPLACE_REALLOC])
-  REPLACE_REALPATH=0;        AC_SUBST([REPLACE_REALPATH])
-  REPLACE_SETENV=0;          AC_SUBST([REPLACE_SETENV])
-  REPLACE_STRTOD=0;          AC_SUBST([REPLACE_STRTOD])
-  REPLACE_UNSETENV=0;        AC_SUBST([REPLACE_UNSETENV])
-  REPLACE_WCTOMB=0;          AC_SUBST([REPLACE_WCTOMB])
-])
diff --git a/m4/string_h.m4 b/m4/string_h.m4
deleted file mode 100644
index 64e683f9..00000000
--- a/m4/string_h.m4
+++ /dev/null
@@ -1,120 +0,0 @@
-# Configure a GNU-like replacement for <string.h>.
-
-# Copyright (C) 2007-2014 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# serial 21
-
-# Written by Paul Eggert.
-
-AC_DEFUN([gl_HEADER_STRING_H],
-[
-  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
-  dnl once only, before all statements that occur in other macros.
-  AC_REQUIRE([gl_HEADER_STRING_H_BODY])
-])
-
-AC_DEFUN([gl_HEADER_STRING_H_BODY],
-[
-  AC_REQUIRE([AC_C_RESTRICT])
-  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
-  gl_NEXT_HEADERS([string.h])
-
-  dnl Check for declarations of anything we want to poison if the
-  dnl corresponding gnulib module is not in use, and which is not
-  dnl guaranteed by C89.
-  gl_WARN_ON_USE_PREPARE([[#include <string.h>
-    ]],
-    [ffsl ffsll memmem mempcpy memrchr rawmemchr stpcpy stpncpy strchrnul
-     strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r
-     strerror_r strsignal strverscmp])
-])
-
-AC_DEFUN([gl_STRING_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS],
-[
-  GNULIB_FFSL=0;        AC_SUBST([GNULIB_FFSL])
-  GNULIB_FFSLL=0;       AC_SUBST([GNULIB_FFSLL])
-  GNULIB_MEMCHR=0;      AC_SUBST([GNULIB_MEMCHR])
-  GNULIB_MEMMEM=0;      AC_SUBST([GNULIB_MEMMEM])
-  GNULIB_MEMPCPY=0;     AC_SUBST([GNULIB_MEMPCPY])
-  GNULIB_MEMRCHR=0;     AC_SUBST([GNULIB_MEMRCHR])
-  GNULIB_RAWMEMCHR=0;   AC_SUBST([GNULIB_RAWMEMCHR])
-  GNULIB_STPCPY=0;      AC_SUBST([GNULIB_STPCPY])
-  GNULIB_STPNCPY=0;     AC_SUBST([GNULIB_STPNCPY])
-  GNULIB_STRCHRNUL=0;   AC_SUBST([GNULIB_STRCHRNUL])
-  GNULIB_STRDUP=0;      AC_SUBST([GNULIB_STRDUP])
-  GNULIB_STRNCAT=0;     AC_SUBST([GNULIB_STRNCAT])
-  GNULIB_STRNDUP=0;     AC_SUBST([GNULIB_STRNDUP])
-  GNULIB_STRNLEN=0;     AC_SUBST([GNULIB_STRNLEN])
-  GNULIB_STRPBRK=0;     AC_SUBST([GNULIB_STRPBRK])
-  GNULIB_STRSEP=0;      AC_SUBST([GNULIB_STRSEP])
-  GNULIB_STRSTR=0;      AC_SUBST([GNULIB_STRSTR])
-  GNULIB_STRCASESTR=0;  AC_SUBST([GNULIB_STRCASESTR])
-  GNULIB_STRTOK_R=0;    AC_SUBST([GNULIB_STRTOK_R])
-  GNULIB_MBSLEN=0;      AC_SUBST([GNULIB_MBSLEN])
-  GNULIB_MBSNLEN=0;     AC_SUBST([GNULIB_MBSNLEN])
-  GNULIB_MBSCHR=0;      AC_SUBST([GNULIB_MBSCHR])
-  GNULIB_MBSRCHR=0;     AC_SUBST([GNULIB_MBSRCHR])
-  GNULIB_MBSSTR=0;      AC_SUBST([GNULIB_MBSSTR])
-  GNULIB_MBSCASECMP=0;  AC_SUBST([GNULIB_MBSCASECMP])
-  GNULIB_MBSNCASECMP=0; AC_SUBST([GNULIB_MBSNCASECMP])
-  GNULIB_MBSPCASECMP=0; AC_SUBST([GNULIB_MBSPCASECMP])
-  GNULIB_MBSCASESTR=0;  AC_SUBST([GNULIB_MBSCASESTR])
-  GNULIB_MBSCSPN=0;     AC_SUBST([GNULIB_MBSCSPN])
-  GNULIB_MBSPBRK=0;     AC_SUBST([GNULIB_MBSPBRK])
-  GNULIB_MBSSPN=0;      AC_SUBST([GNULIB_MBSSPN])
-  GNULIB_MBSSEP=0;      AC_SUBST([GNULIB_MBSSEP])
-  GNULIB_MBSTOK_R=0;    AC_SUBST([GNULIB_MBSTOK_R])
-  GNULIB_STRERROR=0;    AC_SUBST([GNULIB_STRERROR])
-  GNULIB_STRERROR_R=0;  AC_SUBST([GNULIB_STRERROR_R])
-  GNULIB_STRSIGNAL=0;   AC_SUBST([GNULIB_STRSIGNAL])
-  GNULIB_STRVERSCMP=0;  AC_SUBST([GNULIB_STRVERSCMP])
-  HAVE_MBSLEN=0;        AC_SUBST([HAVE_MBSLEN])
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  HAVE_FFSL=1;                  AC_SUBST([HAVE_FFSL])
-  HAVE_FFSLL=1;                 AC_SUBST([HAVE_FFSLL])
-  HAVE_MEMCHR=1;                AC_SUBST([HAVE_MEMCHR])
-  HAVE_DECL_MEMMEM=1;           AC_SUBST([HAVE_DECL_MEMMEM])
-  HAVE_MEMPCPY=1;               AC_SUBST([HAVE_MEMPCPY])
-  HAVE_DECL_MEMRCHR=1;          AC_SUBST([HAVE_DECL_MEMRCHR])
-  HAVE_RAWMEMCHR=1;             AC_SUBST([HAVE_RAWMEMCHR])
-  HAVE_STPCPY=1;                AC_SUBST([HAVE_STPCPY])
-  HAVE_STPNCPY=1;               AC_SUBST([HAVE_STPNCPY])
-  HAVE_STRCHRNUL=1;             AC_SUBST([HAVE_STRCHRNUL])
-  HAVE_DECL_STRDUP=1;           AC_SUBST([HAVE_DECL_STRDUP])
-  HAVE_DECL_STRNDUP=1;          AC_SUBST([HAVE_DECL_STRNDUP])
-  HAVE_DECL_STRNLEN=1;          AC_SUBST([HAVE_DECL_STRNLEN])
-  HAVE_STRPBRK=1;               AC_SUBST([HAVE_STRPBRK])
-  HAVE_STRSEP=1;                AC_SUBST([HAVE_STRSEP])
-  HAVE_STRCASESTR=1;            AC_SUBST([HAVE_STRCASESTR])
-  HAVE_DECL_STRTOK_R=1;         AC_SUBST([HAVE_DECL_STRTOK_R])
-  HAVE_DECL_STRERROR_R=1;       AC_SUBST([HAVE_DECL_STRERROR_R])
-  HAVE_DECL_STRSIGNAL=1;        AC_SUBST([HAVE_DECL_STRSIGNAL])
-  HAVE_STRVERSCMP=1;            AC_SUBST([HAVE_STRVERSCMP])
-  REPLACE_MEMCHR=0;             AC_SUBST([REPLACE_MEMCHR])
-  REPLACE_MEMMEM=0;             AC_SUBST([REPLACE_MEMMEM])
-  REPLACE_STPNCPY=0;            AC_SUBST([REPLACE_STPNCPY])
-  REPLACE_STRDUP=0;             AC_SUBST([REPLACE_STRDUP])
-  REPLACE_STRSTR=0;             AC_SUBST([REPLACE_STRSTR])
-  REPLACE_STRCASESTR=0;         AC_SUBST([REPLACE_STRCASESTR])
-  REPLACE_STRCHRNUL=0;          AC_SUBST([REPLACE_STRCHRNUL])
-  REPLACE_STRERROR=0;           AC_SUBST([REPLACE_STRERROR])
-  REPLACE_STRERROR_R=0;         AC_SUBST([REPLACE_STRERROR_R])
-  REPLACE_STRNCAT=0;            AC_SUBST([REPLACE_STRNCAT])
-  REPLACE_STRNDUP=0;            AC_SUBST([REPLACE_STRNDUP])
-  REPLACE_STRNLEN=0;            AC_SUBST([REPLACE_STRNLEN])
-  REPLACE_STRSIGNAL=0;          AC_SUBST([REPLACE_STRSIGNAL])
-  REPLACE_STRTOK_R=0;           AC_SUBST([REPLACE_STRTOK_R])
-  UNDEFINE_STRTOK_R=0;          AC_SUBST([UNDEFINE_STRTOK_R])
-])
diff --git a/m4/strndup.m4 b/m4/strndup.m4
deleted file mode 100644
index 55df0399..00000000
--- a/m4/strndup.m4
+++ /dev/null
@@ -1,55 +0,0 @@
-# strndup.m4 serial 21
-dnl Copyright (C) 2002-2003, 2005-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_STRNDUP],
-[
-  dnl Persuade glibc <string.h> to declare strndup().
-  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-
-  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
-  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
-  AC_CHECK_DECLS_ONCE([strndup])
-  AC_CHECK_FUNCS_ONCE([strndup])
-  if test $ac_cv_have_decl_strndup = no; then
-    HAVE_DECL_STRNDUP=0
-  fi
-
-  if test $ac_cv_func_strndup = yes; then
-    HAVE_STRNDUP=1
-    # AIX 4.3.3, AIX 5.1 have a function that fails to add the terminating '\0'.
-    AC_CACHE_CHECK([for working strndup], [gl_cv_func_strndup_works],
-      [AC_RUN_IFELSE([
-         AC_LANG_PROGRAM([[#include <string.h>
-                           #include <stdlib.h>]], [[
-#if !HAVE_DECL_STRNDUP
-  extern
-  #ifdef __cplusplus
-  "C"
-  #endif
-  char *strndup (const char *, size_t);
-#endif
-  char *s;
-  s = strndup ("some longer string", 15);
-  free (s);
-  s = strndup ("shorter string", 13);
-  return s[13] != '\0';]])],
-         [gl_cv_func_strndup_works=yes],
-         [gl_cv_func_strndup_works=no],
-         [
-changequote(,)dnl
-          case $host_os in
-            aix | aix[3-6]*) gl_cv_func_strndup_works="guessing no";;
-            *)               gl_cv_func_strndup_works="guessing yes";;
-          esac
-changequote([,])dnl
-         ])])
-    case $gl_cv_func_strndup_works in
-      *no) REPLACE_STRNDUP=1 ;;
-    esac
-  else
-    HAVE_STRNDUP=0
-  fi
-])
diff --git a/m4/strnlen.m4 b/m4/strnlen.m4
deleted file mode 100644
index 94317f8a..00000000
--- a/m4/strnlen.m4
+++ /dev/null
@@ -1,30 +0,0 @@
-# strnlen.m4 serial 13
-dnl Copyright (C) 2002-2003, 2005-2007, 2009-2014 Free Software Foundation,
-dnl Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_FUNC_STRNLEN],
-[
-  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
-
-  dnl Persuade glibc <string.h> to declare strnlen().
-  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-
-  AC_CHECK_DECLS_ONCE([strnlen])
-  if test $ac_cv_have_decl_strnlen = no; then
-    HAVE_DECL_STRNLEN=0
-  else
-    m4_pushdef([AC_LIBOBJ], [:])
-    dnl Note: AC_FUNC_STRNLEN does AC_LIBOBJ([strnlen]).
-    AC_FUNC_STRNLEN
-    m4_popdef([AC_LIBOBJ])
-    if test $ac_cv_func_strnlen_working = no; then
-      REPLACE_STRNLEN=1
-    fi
-  fi
-])
-
-# Prerequisites of lib/strnlen.c.
-AC_DEFUN([gl_PREREQ_STRNLEN], [:])
diff --git a/m4/sys_ioctl_h.m4 b/m4/sys_ioctl_h.m4
deleted file mode 100644
index 16542319..00000000
--- a/m4/sys_ioctl_h.m4
+++ /dev/null
@@ -1,64 +0,0 @@
-# sys_ioctl_h.m4 serial 10
-dnl Copyright (C) 2008-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl Written by Bruno Haible.
-
-AC_DEFUN([gl_SYS_IOCTL_H],
-[
-  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
-  dnl once only, before all statements that occur in other macros.
-  AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])
-
-  AC_CHECK_HEADERS_ONCE([sys/ioctl.h])
-  if test $ac_cv_header_sys_ioctl_h = yes; then
-    HAVE_SYS_IOCTL_H=1
-    dnl Test whether <sys/ioctl.h> declares ioctl(), or whether some other
-    dnl header file, such as <unistd.h> or <stropts.h>, is needed for that.
-    AC_CACHE_CHECK([whether <sys/ioctl.h> declares ioctl],
-      [gl_cv_decl_ioctl_in_sys_ioctl_h],
-      [dnl We cannot use AC_CHECK_DECL because it produces its own messages.
-       AC_COMPILE_IFELSE(
-         [AC_LANG_PROGRAM(
-            [AC_INCLUDES_DEFAULT([#include <sys/ioctl.h>])],
-            [(void) ioctl;])],
-         [gl_cv_decl_ioctl_in_sys_ioctl_h=yes],
-         [gl_cv_decl_ioctl_in_sys_ioctl_h=no])
-      ])
-  else
-    HAVE_SYS_IOCTL_H=0
-  fi
-  AC_SUBST([HAVE_SYS_IOCTL_H])
-  dnl <sys/ioctl.h> is always overridden, because of GNULIB_POSIXCHECK.
-  gl_CHECK_NEXT_HEADERS([sys/ioctl.h])
-
-  dnl Check for declarations of anything we want to poison if the
-  dnl corresponding gnulib module is not in use.
-  gl_WARN_ON_USE_PREPARE([[#include <sys/ioctl.h>
-/* Some platforms declare ioctl in the wrong header.  */
-#if !(defined __GLIBC__ && !defined __UCLIBC__)
-# include <unistd.h>
-#endif
-    ]], [ioctl])
-])
-
-AC_DEFUN([gl_SYS_IOCTL_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_SYS_IOCTL_H_DEFAULTS],
-[
-  GNULIB_IOCTL=0;         AC_SUBST([GNULIB_IOCTL])
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  SYS_IOCTL_H_HAVE_WINSOCK2_H=0; AC_SUBST([SYS_IOCTL_H_HAVE_WINSOCK2_H])
-  SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
-                        AC_SUBST([SYS_IOCTL_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
-  REPLACE_IOCTL=0;      AC_SUBST([REPLACE_IOCTL])
-])
diff --git a/m4/sys_socket_h.m4 b/m4/sys_socket_h.m4
deleted file mode 100644
index 114d8281..00000000
--- a/m4/sys_socket_h.m4
+++ /dev/null
@@ -1,176 +0,0 @@
-# sys_socket_h.m4 serial 23
-dnl Copyright (C) 2005-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Simon Josefsson.
-
-AC_DEFUN([gl_HEADER_SYS_SOCKET],
-[
-  AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
-  AC_REQUIRE([AC_CANONICAL_HOST])
-
-  dnl On OSF/1, the functions recv(), send(), recvfrom(), sendto() have
-  dnl old-style declarations (with return type 'int' instead of 'ssize_t')
-  dnl unless _POSIX_PII_SOCKET is defined.
-  case "$host_os" in
-    osf*)
-      AC_DEFINE([_POSIX_PII_SOCKET], [1],
-        [Define to 1 in order to get the POSIX compatible declarations
-         of socket functions.])
-      ;;
-  esac
-
-  AC_CACHE_CHECK([whether <sys/socket.h> is self-contained],
-    [gl_cv_header_sys_socket_h_selfcontained],
-    [
-      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/socket.h>]], [[]])],
-        [gl_cv_header_sys_socket_h_selfcontained=yes],
-        [gl_cv_header_sys_socket_h_selfcontained=no])
-    ])
-  if test $gl_cv_header_sys_socket_h_selfcontained = yes; then
-    dnl If the shutdown function exists, <sys/socket.h> should define
-    dnl SHUT_RD, SHUT_WR, SHUT_RDWR.
-    AC_CHECK_FUNCS([shutdown])
-    if test $ac_cv_func_shutdown = yes; then
-      AC_CACHE_CHECK([whether <sys/socket.h> defines the SHUT_* macros],
-        [gl_cv_header_sys_socket_h_shut],
-        [
-          AC_COMPILE_IFELSE(
-            [AC_LANG_PROGRAM([[#include <sys/socket.h>]],
-               [[int a[] = { SHUT_RD, SHUT_WR, SHUT_RDWR };]])],
-            [gl_cv_header_sys_socket_h_shut=yes],
-            [gl_cv_header_sys_socket_h_shut=no])
-        ])
-      if test $gl_cv_header_sys_socket_h_shut = no; then
-        SYS_SOCKET_H='sys/socket.h'
-      fi
-    fi
-  fi
-  # We need to check for ws2tcpip.h now.
-  gl_PREREQ_SYS_H_SOCKET
-  AC_CHECK_TYPES([struct sockaddr_storage, sa_family_t],,,[
-  /* sys/types.h is not needed according to POSIX, but the
-     sys/socket.h in i386-unknown-freebsd4.10 and
-     powerpc-apple-darwin5.5 required it. */
-#include <sys/types.h>
-#ifdef HAVE_SYS_SOCKET_H
-#include <sys/socket.h>
-#endif
-#ifdef HAVE_WS2TCPIP_H
-#include <ws2tcpip.h>
-#endif
-])
-  if test $ac_cv_type_struct_sockaddr_storage = no; then
-    HAVE_STRUCT_SOCKADDR_STORAGE=0
-  fi
-  if test $ac_cv_type_sa_family_t = no; then
-    HAVE_SA_FAMILY_T=0
-  fi
-  if test $ac_cv_type_struct_sockaddr_storage != no; then
-    AC_CHECK_MEMBERS([struct sockaddr_storage.ss_family],
-      [],
-      [HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=0],
-      [#include <sys/types.h>
-       #ifdef HAVE_SYS_SOCKET_H
-       #include <sys/socket.h>
-       #endif
-       #ifdef HAVE_WS2TCPIP_H
-       #include <ws2tcpip.h>
-       #endif
-      ])
-  fi
-  if test $HAVE_STRUCT_SOCKADDR_STORAGE = 0 || test $HAVE_SA_FAMILY_T = 0 \
-     || test $HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY = 0; then
-    SYS_SOCKET_H='sys/socket.h'
-  fi
-  gl_PREREQ_SYS_H_WINSOCK2
-
-  dnl Check for declarations of anything we want to poison if the
-  dnl corresponding gnulib module is not in use.
-  gl_WARN_ON_USE_PREPARE([[
-/* Some systems require prerequisite headers.  */
-#include <sys/types.h>
-#include <sys/socket.h>
-    ]], [socket connect accept bind getpeername getsockname getsockopt
-    listen recv send recvfrom sendto setsockopt shutdown accept4])
-])
-
-AC_DEFUN([gl_PREREQ_SYS_H_SOCKET],
-[
-  dnl Check prerequisites of the <sys/socket.h> replacement.
-  AC_REQUIRE([gl_CHECK_SOCKET_HEADERS])
-  gl_CHECK_NEXT_HEADERS([sys/socket.h])
-  if test $ac_cv_header_sys_socket_h = yes; then
-    HAVE_SYS_SOCKET_H=1
-    HAVE_WS2TCPIP_H=0
-  else
-    HAVE_SYS_SOCKET_H=0
-    if test $ac_cv_header_ws2tcpip_h = yes; then
-      HAVE_WS2TCPIP_H=1
-    else
-      HAVE_WS2TCPIP_H=0
-    fi
-  fi
-  AC_SUBST([HAVE_SYS_SOCKET_H])
-  AC_SUBST([HAVE_WS2TCPIP_H])
-])
-
-# Common prerequisites of the <sys/socket.h> replacement and of the
-# <sys/select.h> replacement.
-# Sets and substitutes HAVE_WINSOCK2_H.
-AC_DEFUN([gl_PREREQ_SYS_H_WINSOCK2],
-[
-  m4_ifdef([gl_UNISTD_H_DEFAULTS], [AC_REQUIRE([gl_UNISTD_H_DEFAULTS])])
-  m4_ifdef([gl_SYS_IOCTL_H_DEFAULTS], [AC_REQUIRE([gl_SYS_IOCTL_H_DEFAULTS])])
-  AC_CHECK_HEADERS_ONCE([sys/socket.h])
-  if test $ac_cv_header_sys_socket_h != yes; then
-    dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
-    dnl the check for those headers unconditional; yet cygwin reports
-    dnl that the headers are present but cannot be compiled (since on
-    dnl cygwin, all socket information should come from sys/socket.h).
-    AC_CHECK_HEADERS([winsock2.h])
-  fi
-  if test "$ac_cv_header_winsock2_h" = yes; then
-    HAVE_WINSOCK2_H=1
-    UNISTD_H_HAVE_WINSOCK2_H=1
-    SYS_IOCTL_H_HAVE_WINSOCK2_H=1
-  else
-    HAVE_WINSOCK2_H=0
-  fi
-  AC_SUBST([HAVE_WINSOCK2_H])
-])
-
-AC_DEFUN([gl_SYS_SOCKET_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_SYS_SOCKET_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_SYS_SOCKET_H_DEFAULTS],
-[
-  GNULIB_SOCKET=0;      AC_SUBST([GNULIB_SOCKET])
-  GNULIB_CONNECT=0;     AC_SUBST([GNULIB_CONNECT])
-  GNULIB_ACCEPT=0;      AC_SUBST([GNULIB_ACCEPT])
-  GNULIB_BIND=0;        AC_SUBST([GNULIB_BIND])
-  GNULIB_GETPEERNAME=0; AC_SUBST([GNULIB_GETPEERNAME])
-  GNULIB_GETSOCKNAME=0; AC_SUBST([GNULIB_GETSOCKNAME])
-  GNULIB_GETSOCKOPT=0;  AC_SUBST([GNULIB_GETSOCKOPT])
-  GNULIB_LISTEN=0;      AC_SUBST([GNULIB_LISTEN])
-  GNULIB_RECV=0;        AC_SUBST([GNULIB_RECV])
-  GNULIB_SEND=0;        AC_SUBST([GNULIB_SEND])
-  GNULIB_RECVFROM=0;    AC_SUBST([GNULIB_RECVFROM])
-  GNULIB_SENDTO=0;      AC_SUBST([GNULIB_SENDTO])
-  GNULIB_SETSOCKOPT=0;  AC_SUBST([GNULIB_SETSOCKOPT])
-  GNULIB_SHUTDOWN=0;    AC_SUBST([GNULIB_SHUTDOWN])
-  GNULIB_ACCEPT4=0;     AC_SUBST([GNULIB_ACCEPT4])
-  HAVE_STRUCT_SOCKADDR_STORAGE=1; AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE])
-  HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY=1;
-                        AC_SUBST([HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY])
-  HAVE_SA_FAMILY_T=1;   AC_SUBST([HAVE_SA_FAMILY_T])
-  HAVE_ACCEPT4=1;       AC_SUBST([HAVE_ACCEPT4])
-])
diff --git a/m4/sys_types_h.m4 b/m4/sys_types_h.m4
deleted file mode 100644
index 9748905b..00000000
--- a/m4/sys_types_h.m4
+++ /dev/null
@@ -1,24 +0,0 @@
-# sys_types_h.m4 serial 5
-dnl Copyright (C) 2011-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN_ONCE([gl_SYS_TYPES_H],
-[
-  AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
-  gl_NEXT_HEADERS([sys/types.h])
-
-  dnl Ensure the type pid_t gets defined.
-  AC_REQUIRE([AC_TYPE_PID_T])
-
-  dnl Ensure the type mode_t gets defined.
-  AC_REQUIRE([AC_TYPE_MODE_T])
-
-  dnl Whether to override the 'off_t' type.
-  AC_REQUIRE([gl_TYPE_OFF_T])
-])
-
-AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
-[
-])
diff --git a/m4/sys_uio_h.m4 b/m4/sys_uio_h.m4
deleted file mode 100644
index ba6b4b5e..00000000
--- a/m4/sys_uio_h.m4
+++ /dev/null
@@ -1,31 +0,0 @@
-# sys_uio_h.m4 serial 1
-dnl Copyright (C) 2011-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-AC_DEFUN([gl_HEADER_SYS_UIO],
-[
-  AC_REQUIRE([gl_SYS_UIO_H_DEFAULTS])
-  dnl <sys/uio.h> is always overridden, because of GNULIB_POSIXCHECK.
-  gl_CHECK_NEXT_HEADERS([sys/uio.h])
-  if test $ac_cv_header_sys_uio_h = yes; then
-    HAVE_SYS_UIO_H=1
-  else
-    HAVE_SYS_UIO_H=0
-  fi
-  AC_SUBST([HAVE_SYS_UIO_H])
-])
-
-AC_DEFUN([gl_SYS_UIO_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_SYS_UIO_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_SYS_UIO_H_DEFAULTS],
-[
-])
diff --git a/m4/unistd_h.m4 b/m4/unistd_h.m4
deleted file mode 100644
index 1fa197e6..00000000
--- a/m4/unistd_h.m4
+++ /dev/null
@@ -1,187 +0,0 @@
-# unistd_h.m4 serial 67
-dnl Copyright (C) 2006-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl Written by Simon Josefsson, Bruno Haible.
-
-AC_DEFUN([gl_UNISTD_H],
-[
-  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
-  dnl once only, before all statements that occur in other macros.
-  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
-
-  gl_CHECK_NEXT_HEADERS([unistd.h])
-  if test $ac_cv_header_unistd_h = yes; then
-    HAVE_UNISTD_H=1
-  else
-    HAVE_UNISTD_H=0
-  fi
-  AC_SUBST([HAVE_UNISTD_H])
-
-  dnl Ensure the type pid_t gets defined.
-  AC_REQUIRE([AC_TYPE_PID_T])
-
-  dnl Determine WINDOWS_64_BIT_OFF_T.
-  AC_REQUIRE([gl_TYPE_OFF_T])
-
-  dnl Check for declarations of anything we want to poison if the
-  dnl corresponding gnulib module is not in use.
-  gl_WARN_ON_USE_PREPARE([[
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-/* Some systems declare various items in the wrong headers.  */
-#if !(defined __GLIBC__ && !defined __UCLIBC__)
-# include <fcntl.h>
-# include <stdio.h>
-# include <stdlib.h>
-# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
-#  include <io.h>
-# endif
-#endif
-    ]], [chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat
-    fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups
-    gethostname getlogin getlogin_r getpagesize
-    getusershell setusershell endusershell
-    group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite
-    readlink readlinkat rmdir sethostname sleep symlink symlinkat ttyname_r
-    unlink unlinkat usleep])
-])
-
-AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
-  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
-  dnl Define it also as a C macro, for the benefit of the unit tests.
-  gl_MODULE_INDICATOR_FOR_TESTS([$1])
-])
-
-AC_DEFUN([gl_UNISTD_H_DEFAULTS],
-[
-  GNULIB_CHDIR=0;                AC_SUBST([GNULIB_CHDIR])
-  GNULIB_CHOWN=0;                AC_SUBST([GNULIB_CHOWN])
-  GNULIB_CLOSE=0;                AC_SUBST([GNULIB_CLOSE])
-  GNULIB_DUP=0;                  AC_SUBST([GNULIB_DUP])
-  GNULIB_DUP2=0;                 AC_SUBST([GNULIB_DUP2])
-  GNULIB_DUP3=0;                 AC_SUBST([GNULIB_DUP3])
-  GNULIB_ENVIRON=0;              AC_SUBST([GNULIB_ENVIRON])
-  GNULIB_EUIDACCESS=0;           AC_SUBST([GNULIB_EUIDACCESS])
-  GNULIB_FACCESSAT=0;            AC_SUBST([GNULIB_FACCESSAT])
-  GNULIB_FCHDIR=0;               AC_SUBST([GNULIB_FCHDIR])
-  GNULIB_FCHOWNAT=0;             AC_SUBST([GNULIB_FCHOWNAT])
-  GNULIB_FDATASYNC=0;            AC_SUBST([GNULIB_FDATASYNC])
-  GNULIB_FSYNC=0;                AC_SUBST([GNULIB_FSYNC])
-  GNULIB_FTRUNCATE=0;            AC_SUBST([GNULIB_FTRUNCATE])
-  GNULIB_GETCWD=0;               AC_SUBST([GNULIB_GETCWD])
-  GNULIB_GETDOMAINNAME=0;        AC_SUBST([GNULIB_GETDOMAINNAME])
-  GNULIB_GETDTABLESIZE=0;        AC_SUBST([GNULIB_GETDTABLESIZE])
-  GNULIB_GETGROUPS=0;            AC_SUBST([GNULIB_GETGROUPS])
-  GNULIB_GETHOSTNAME=0;          AC_SUBST([GNULIB_GETHOSTNAME])
-  GNULIB_GETLOGIN=0;             AC_SUBST([GNULIB_GETLOGIN])
-  GNULIB_GETLOGIN_R=0;           AC_SUBST([GNULIB_GETLOGIN_R])
-  GNULIB_GETPAGESIZE=0;          AC_SUBST([GNULIB_GETPAGESIZE])
-  GNULIB_GETUSERSHELL=0;         AC_SUBST([GNULIB_GETUSERSHELL])
-  GNULIB_GROUP_MEMBER=0;         AC_SUBST([GNULIB_GROUP_MEMBER])
-  GNULIB_ISATTY=0;               AC_SUBST([GNULIB_ISATTY])
-  GNULIB_LCHOWN=0;               AC_SUBST([GNULIB_LCHOWN])
-  GNULIB_LINK=0;                 AC_SUBST([GNULIB_LINK])
-  GNULIB_LINKAT=0;               AC_SUBST([GNULIB_LINKAT])
-  GNULIB_LSEEK=0;                AC_SUBST([GNULIB_LSEEK])
-  GNULIB_PIPE=0;                 AC_SUBST([GNULIB_PIPE])
-  GNULIB_PIPE2=0;                AC_SUBST([GNULIB_PIPE2])
-  GNULIB_PREAD=0;                AC_SUBST([GNULIB_PREAD])
-  GNULIB_PWRITE=0;               AC_SUBST([GNULIB_PWRITE])
-  GNULIB_READ=0;                 AC_SUBST([GNULIB_READ])
-  GNULIB_READLINK=0;             AC_SUBST([GNULIB_READLINK])
-  GNULIB_READLINKAT=0;           AC_SUBST([GNULIB_READLINKAT])
-  GNULIB_RMDIR=0;                AC_SUBST([GNULIB_RMDIR])
-  GNULIB_SETHOSTNAME=0;          AC_SUBST([GNULIB_SETHOSTNAME])
-  GNULIB_SLEEP=0;                AC_SUBST([GNULIB_SLEEP])
-  GNULIB_SYMLINK=0;              AC_SUBST([GNULIB_SYMLINK])
-  GNULIB_SYMLINKAT=0;            AC_SUBST([GNULIB_SYMLINKAT])
-  GNULIB_TTYNAME_R=0;            AC_SUBST([GNULIB_TTYNAME_R])
-  GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING])
-  GNULIB_UNISTD_H_SIGPIPE=0;     AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
-  GNULIB_UNLINK=0;               AC_SUBST([GNULIB_UNLINK])
-  GNULIB_UNLINKAT=0;             AC_SUBST([GNULIB_UNLINKAT])
-  GNULIB_USLEEP=0;               AC_SUBST([GNULIB_USLEEP])
-  GNULIB_WRITE=0;                AC_SUBST([GNULIB_WRITE])
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  HAVE_CHOWN=1;           AC_SUBST([HAVE_CHOWN])
-  HAVE_DUP2=1;            AC_SUBST([HAVE_DUP2])
-  HAVE_DUP3=1;            AC_SUBST([HAVE_DUP3])
-  HAVE_EUIDACCESS=1;      AC_SUBST([HAVE_EUIDACCESS])
-  HAVE_FACCESSAT=1;       AC_SUBST([HAVE_FACCESSAT])
-  HAVE_FCHDIR=1;          AC_SUBST([HAVE_FCHDIR])
-  HAVE_FCHOWNAT=1;        AC_SUBST([HAVE_FCHOWNAT])
-  HAVE_FDATASYNC=1;       AC_SUBST([HAVE_FDATASYNC])
-  HAVE_FSYNC=1;           AC_SUBST([HAVE_FSYNC])
-  HAVE_FTRUNCATE=1;       AC_SUBST([HAVE_FTRUNCATE])
-  HAVE_GETDTABLESIZE=1;   AC_SUBST([HAVE_GETDTABLESIZE])
-  HAVE_GETGROUPS=1;       AC_SUBST([HAVE_GETGROUPS])
-  HAVE_GETHOSTNAME=1;     AC_SUBST([HAVE_GETHOSTNAME])
-  HAVE_GETLOGIN=1;        AC_SUBST([HAVE_GETLOGIN])
-  HAVE_GETPAGESIZE=1;     AC_SUBST([HAVE_GETPAGESIZE])
-  HAVE_GROUP_MEMBER=1;    AC_SUBST([HAVE_GROUP_MEMBER])
-  HAVE_LCHOWN=1;          AC_SUBST([HAVE_LCHOWN])
-  HAVE_LINK=1;            AC_SUBST([HAVE_LINK])
-  HAVE_LINKAT=1;          AC_SUBST([HAVE_LINKAT])
-  HAVE_PIPE=1;            AC_SUBST([HAVE_PIPE])
-  HAVE_PIPE2=1;           AC_SUBST([HAVE_PIPE2])
-  HAVE_PREAD=1;           AC_SUBST([HAVE_PREAD])
-  HAVE_PWRITE=1;          AC_SUBST([HAVE_PWRITE])
-  HAVE_READLINK=1;        AC_SUBST([HAVE_READLINK])
-  HAVE_READLINKAT=1;      AC_SUBST([HAVE_READLINKAT])
-  HAVE_SETHOSTNAME=1;     AC_SUBST([HAVE_SETHOSTNAME])
-  HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
-  HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
-  HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
-  HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
-  HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
-  HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
-  HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
-  HAVE_DECL_FDATASYNC=1;  AC_SUBST([HAVE_DECL_FDATASYNC])
-  HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
-  HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
-  HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
-  HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
-  HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME])
-  HAVE_DECL_TTYNAME_R=1;  AC_SUBST([HAVE_DECL_TTYNAME_R])
-  HAVE_OS_H=0;            AC_SUBST([HAVE_OS_H])
-  HAVE_SYS_PARAM_H=0;     AC_SUBST([HAVE_SYS_PARAM_H])
-  REPLACE_CHOWN=0;        AC_SUBST([REPLACE_CHOWN])
-  REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
-  REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
-  REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
-  REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
-  REPLACE_FTRUNCATE=0;    AC_SUBST([REPLACE_FTRUNCATE])
-  REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
-  REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME])
-  REPLACE_GETDTABLESIZE=0; AC_SUBST([REPLACE_GETDTABLESIZE])
-  REPLACE_GETLOGIN_R=0;   AC_SUBST([REPLACE_GETLOGIN_R])
-  REPLACE_GETGROUPS=0;    AC_SUBST([REPLACE_GETGROUPS])
-  REPLACE_GETPAGESIZE=0;  AC_SUBST([REPLACE_GETPAGESIZE])
-  REPLACE_ISATTY=0;       AC_SUBST([REPLACE_ISATTY])
-  REPLACE_LCHOWN=0;       AC_SUBST([REPLACE_LCHOWN])
-  REPLACE_LINK=0;         AC_SUBST([REPLACE_LINK])
-  REPLACE_LINKAT=0;       AC_SUBST([REPLACE_LINKAT])
-  REPLACE_LSEEK=0;        AC_SUBST([REPLACE_LSEEK])
-  REPLACE_PREAD=0;        AC_SUBST([REPLACE_PREAD])
-  REPLACE_PWRITE=0;       AC_SUBST([REPLACE_PWRITE])
-  REPLACE_READ=0;         AC_SUBST([REPLACE_READ])
-  REPLACE_READLINK=0;     AC_SUBST([REPLACE_READLINK])
-  REPLACE_RMDIR=0;        AC_SUBST([REPLACE_RMDIR])
-  REPLACE_SLEEP=0;        AC_SUBST([REPLACE_SLEEP])
-  REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
-  REPLACE_TTYNAME_R=0;    AC_SUBST([REPLACE_TTYNAME_R])
-  REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
-  REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
-  REPLACE_USLEEP=0;       AC_SUBST([REPLACE_USLEEP])
-  REPLACE_WRITE=0;        AC_SUBST([REPLACE_WRITE])
-  UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H])
-  UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0;
-                           AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS])
-])
diff --git a/m4/warn-on-use.m4 b/m4/warn-on-use.m4
deleted file mode 100644
index cc690f8e..00000000
--- a/m4/warn-on-use.m4
+++ /dev/null
@@ -1,47 +0,0 @@
-# warn-on-use.m4 serial 5
-dnl Copyright (C) 2010-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-# gl_WARN_ON_USE_PREPARE(INCLUDES, NAMES)
-# ---------------------------------------
-# For each whitespace-separated element in the list of NAMES, define
-# HAVE_RAW_DECL_name if the function has a declaration among INCLUDES
-# even after being undefined as a macro.
-#
-# See warn-on-use.h for some hints on how to poison function names, as
-# well as ideas on poisoning global variables and macros.  NAMES may
-# include global variables, but remember that only functions work with
-# _GL_WARN_ON_USE.  Typically, INCLUDES only needs to list a single
-# header, but if the replacement header pulls in other headers because
-# some systems declare functions in the wrong header, then INCLUDES
-# should do likewise.
-#
-# It is generally safe to assume declarations for functions declared
-# in the intersection of C89 and C11 (such as printf) without
-# needing gl_WARN_ON_USE_PREPARE.
-AC_DEFUN([gl_WARN_ON_USE_PREPARE],
-[
-  m4_foreach_w([gl_decl], [$2],
-    [AH_TEMPLATE([HAVE_RAW_DECL_]AS_TR_CPP(m4_defn([gl_decl])),
-      [Define to 1 if ]m4_defn([gl_decl])[ is declared even after
-       undefining macros.])])dnl
-dnl FIXME: gl_Symbol must be used unquoted until we can assume
-dnl autoconf 2.64 or newer.
-  for gl_func in m4_flatten([$2]); do
-    AS_VAR_PUSHDEF([gl_Symbol], [gl_cv_have_raw_decl_$gl_func])dnl
-    AC_CACHE_CHECK([whether $gl_func is declared without a macro],
-      gl_Symbol,
-      [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([$1],
-[@%:@undef $gl_func
-  (void) $gl_func;])],
-        [AS_VAR_SET(gl_Symbol, [yes])], [AS_VAR_SET(gl_Symbol, [no])])])
-    AS_VAR_IF(gl_Symbol, [yes],
-      [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_RAW_DECL_$gl_func]), [1])
-       dnl shortcut - if the raw declaration exists, then set a cache
-       dnl variable to allow skipping any later AC_CHECK_DECL efforts
-       eval ac_cv_have_decl_$gl_func=yes])
-    AS_VAR_POPDEF([gl_Symbol])dnl
-  done
-])
diff --git a/m4/wchar_t.m4 b/m4/wchar_t.m4
deleted file mode 100644
index 839a04c1..00000000
--- a/m4/wchar_t.m4
+++ /dev/null
@@ -1,24 +0,0 @@
-# wchar_t.m4 serial 4 (gettext-0.18.2)
-dnl Copyright (C) 2002-2003, 2008-2014 Free Software Foundation, Inc.
-dnl This file is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl From Bruno Haible.
-dnl Test whether <stddef.h> has the 'wchar_t' type.
-dnl Prerequisite: AC_PROG_CC
-
-AC_DEFUN([gt_TYPE_WCHAR_T],
-[
-  AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t],
-    [AC_COMPILE_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[#include <stddef.h>
-            wchar_t foo = (wchar_t)'\0';]],
-          [[]])],
-       [gt_cv_c_wchar_t=yes],
-       [gt_cv_c_wchar_t=no])])
-  if test $gt_cv_c_wchar_t = yes; then
-    AC_DEFINE([HAVE_WCHAR_T], [1], [Define if you have the 'wchar_t' type.])
-  fi
-])