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-rw-r--r--Makefile.am2
-rw-r--r--Makefile.in6
-rw-r--r--aclocal.m41
-rwxr-xr-xconfigure124
-rw-r--r--configure.ac8
-rw-r--r--lib/Makefile.am2
-rw-r--r--lib/Makefile.in6
-rw-r--r--lib/dummy.c2
-rw-r--r--m4/gnulib-cache.m43
-rw-r--r--m4/gnulib-comp.m44
-rw-r--r--m4/lib-ignore.m4115
11 files changed, 261 insertions, 12 deletions
diff --git a/Makefile.am b/Makefile.am
index f8a8c514..80992e54 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -17,7 +17,7 @@ endif
AM_CFLAGS = -Wall
AM_CPPFLAGS = -DDATADIR=\""$(datadir)"\" -I$(top_builddir)/lib -I$(top_srcdir)/lib
-LDADD = $(top_builddir)/lib/libgnu.a
+LDADD = $(top_builddir)/lib/libgnu.a @IGNORE_UNUSED_LIBRARIES_CFLAGS@
src_pattern_sim_SOURCES = src/pattern_sim.c src/diffraction.c src/utils.c \
src/image.c src/cell.c src/hdf5-file.c \
diff --git a/Makefile.in b/Makefile.in
index 09b871a1..a171fc29 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -57,7 +57,8 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/00gnulib.m4 \
$(top_srcdir)/m4/extensions.m4 \
$(top_srcdir)/m4/gnulib-common.m4 \
$(top_srcdir)/m4/gnulib-comp.m4 \
- $(top_srcdir)/m4/include_next.m4 $(top_srcdir)/m4/memchr.m4 \
+ $(top_srcdir)/m4/include_next.m4 \
+ $(top_srcdir)/m4/lib-ignore.m4 $(top_srcdir)/m4/memchr.m4 \
$(top_srcdir)/m4/mmap-anon.m4 $(top_srcdir)/m4/onceonly.m4 \
$(top_srcdir)/m4/stddef_h.m4 $(top_srcdir)/m4/string_h.m4 \
$(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
@@ -412,6 +413,7 @@ HAVE_STRPBRK = @HAVE_STRPBRK@
HAVE_STRSEP = @HAVE_STRSEP@
HAVE_STRVERSCMP = @HAVE_STRVERSCMP@
HAVE_WCHAR_T = @HAVE_WCHAR_T@
+IGNORE_UNUSED_LIBRARIES_CFLAGS = @IGNORE_UNUSED_LIBRARIES_CFLAGS@
INCLUDE_NEXT = @INCLUDE_NEXT@
INCLUDE_NEXT_AS_FIRST_DIRECTIVE = @INCLUDE_NEXT_AS_FIRST_DIRECTIVE@
INSTALL = @INSTALL@
@@ -555,7 +557,7 @@ SUBDIRS = lib
ACLOCAL_AMFLAGS = -I m4
AM_CFLAGS = -Wall
AM_CPPFLAGS = -DDATADIR=\""$(datadir)"\" -I$(top_builddir)/lib -I$(top_srcdir)/lib
-LDADD = $(top_builddir)/lib/libgnu.a
+LDADD = $(top_builddir)/lib/libgnu.a @IGNORE_UNUSED_LIBRARIES_CFLAGS@
src_pattern_sim_SOURCES = src/pattern_sim.c src/diffraction.c \
src/utils.c src/image.c src/cell.c src/hdf5-file.c \
src/detector.c src/sfac.c src/peaks.c src/reflections.c \
diff --git a/aclocal.m4 b/aclocal.m4
index 705c58de..7f775da8 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1383,6 +1383,7 @@ m4_include([m4/extensions.m4])
m4_include([m4/gnulib-common.m4])
m4_include([m4/gnulib-comp.m4])
m4_include([m4/include_next.m4])
+m4_include([m4/lib-ignore.m4])
m4_include([m4/memchr.m4])
m4_include([m4/mmap-anon.m4])
m4_include([m4/onceonly.m4])
diff --git a/configure b/configure
index 6b0afdc4..bb3ea6c3 100755
--- a/configure
+++ b/configure
@@ -703,6 +703,7 @@ GNULIB_MEMRCHR
GNULIB_MEMPCPY
GNULIB_MEMMEM
GNULIB_MEMCHR
+IGNORE_UNUSED_LIBRARIES_CFLAGS
GL_COND_LIBTOOL_FALSE
GL_COND_LIBTOOL_TRUE
LIBOBJS
@@ -4469,6 +4470,7 @@ $as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
# Code from module extensions:
# Code from module include_next:
+ # Code from module lib-ignore:
# Code from module memchr:
# Code from module stddef:
# Code from module string:
@@ -5763,6 +5765,64 @@ fi
# Code from module c++defs:
# Code from module extensions:
# Code from module include_next:
+ # Code from module lib-ignore:
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler flag to ignore unused libraries" >&5
+$as_echo_n "checking for C compiler flag to ignore unused libraries... " >&6; }
+if test "${gl_cv_prog_c_ignore_unused_libraries+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ gl_cv_prog_c_ignore_unused_libraries=none
+ gl_saved_ldflags=$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 '-Wl,--as-needed' \
+ '-Wl,-z,ignore' \
+ '-z ignore'
+
+ do
+ LDFLAGS="$gl_flags $LDFLAGS"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ gl_cv_prog_c_ignore_unused_libraries=$gl_flags
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ LDFLAGS=$gl_saved_ldflags
+ test "$gl_cv_prog_c_ignore_unused_libraries" != none &&
+ break
+ done
+ LIBS=$gl_saved_libs
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_prog_c_ignore_unused_libraries" >&5
+$as_echo "$gl_cv_prog_c_ignore_unused_libraries" >&6; }
+ IGNORE_UNUSED_LIBRARIES_CFLAGS=
+ if test "$gl_cv_prog_c_ignore_unused_libraries" != none; then
+ IGNORE_UNUSED_LIBRARIES_CFLAGS="$gl_cv_prog_c_ignore_unused_libraries"
+ fi
+
+
# Code from module memchr:
@@ -7177,12 +7237,72 @@ $as_echo "yes" >&6; }
fi
-CFLAGS="$CFLAGS $HDF5_CFLAGS $GTK_CFLAGS $GSL_CFLAGS $OPENCL_CFLAGS -pthread"
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler flag to ignore unused libraries" >&5
+$as_echo_n "checking for C compiler flag to ignore unused libraries... " >&6; }
+if test "${gl_cv_prog_c_ignore_unused_libraries+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ gl_cv_prog_c_ignore_unused_libraries=none
+ gl_saved_ldflags=$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 '-Wl,--as-needed' \
+ '-Wl,-z,ignore' \
+ '-z ignore'
+
+ do
+ LDFLAGS="$gl_flags $LDFLAGS"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ gl_cv_prog_c_ignore_unused_libraries=$gl_flags
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ LDFLAGS=$gl_saved_ldflags
+ test "$gl_cv_prog_c_ignore_unused_libraries" != none &&
+ break
+ done
+ LIBS=$gl_saved_libs
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gl_cv_prog_c_ignore_unused_libraries" >&5
+$as_echo "$gl_cv_prog_c_ignore_unused_libraries" >&6; }
+ IGNORE_UNUSED_LIBRARIES_CFLAGS=
+ if test "$gl_cv_prog_c_ignore_unused_libraries" != none; then
+ IGNORE_UNUSED_LIBRARIES_CFLAGS="$gl_cv_prog_c_ignore_unused_libraries"
+ fi
+
+
+
+
+CFLAGS="$CFLAGS $HDF5_CFLAGS $GSL_CFLAGS $OPENCL_CFLAGS -pthread $GTK_CFLAGS"
CFLAGS="$CFLAGS $LIBTIFF_CFLAGS -D_GNU_SOURCE $libPNG_CFLAGS $Cairo_CFLAGS"
CFLAGS="$CFLAGS $GDK_pixbuf_CFLAGS $GDK_pixbuf_2_CFLAGS"
LIBS="$LIBS $HDF5_LIBS -lm -lz $GSL_LIBS $GTK_LIBS $OPENCL_LIBS -pthread"
LIBS="$LIBS $LIBTIFF_LIBS $libPNG_LIBS $Cairo_LIBS $GDK_pixbuf_LIBS"
-LIBS="$LIBS $GDK_pixbuf_2_LIBS"
+LIBS="$LIBS $GDK_pixbuf_2_LIBS $LDFLAGS"
+
ac_config_files="$ac_config_files Makefile lib/Makefile"
diff --git a/configure.ac b/configure.ac
index 21fb1be0..da550a85 100644
--- a/configure.ac
+++ b/configure.ac
@@ -153,12 +153,16 @@ PKG_CHECK_MODULES([GDK_pixbuf], [gdk-pixbuf], [],
])
-CFLAGS="$CFLAGS $HDF5_CFLAGS $GTK_CFLAGS $GSL_CFLAGS $OPENCL_CFLAGS -pthread"
+gl_IGNORE_UNUSED_LIBRARIES
+
+
+CFLAGS="$CFLAGS $HDF5_CFLAGS $GSL_CFLAGS $OPENCL_CFLAGS -pthread $GTK_CFLAGS"
CFLAGS="$CFLAGS $LIBTIFF_CFLAGS -D_GNU_SOURCE $libPNG_CFLAGS $Cairo_CFLAGS"
CFLAGS="$CFLAGS $GDK_pixbuf_CFLAGS $GDK_pixbuf_2_CFLAGS"
LIBS="$LIBS $HDF5_LIBS -lm -lz $GSL_LIBS $GTK_LIBS $OPENCL_LIBS -pthread"
LIBS="$LIBS $LIBTIFF_LIBS $libPNG_LIBS $Cairo_LIBS $GDK_pixbuf_LIBS"
-LIBS="$LIBS $GDK_pixbuf_2_LIBS"
+LIBS="$LIBS $GDK_pixbuf_2_LIBS $LDFLAGS"
+
AC_CONFIG_FILES(Makefile lib/Makefile)
AC_OUTPUT
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 8dc96594..1a70d02a 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -9,7 +9,7 @@
# 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-libtool --macro-prefix=gl strndup
+# 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-libtool --macro-prefix=gl lib-ignore strndup
AUTOMAKE_OPTIONS = 1.5 gnits
diff --git a/lib/Makefile.in b/lib/Makefile.in
index 6f210468..0b4d3f2d 100644
--- a/lib/Makefile.in
+++ b/lib/Makefile.in
@@ -24,7 +24,7 @@
# 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-libtool --macro-prefix=gl strndup
+# 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-libtool --macro-prefix=gl lib-ignore strndup
@@ -55,7 +55,8 @@ am__aclocal_m4_deps = $(top_srcdir)/m4/00gnulib.m4 \
$(top_srcdir)/m4/extensions.m4 \
$(top_srcdir)/m4/gnulib-common.m4 \
$(top_srcdir)/m4/gnulib-comp.m4 \
- $(top_srcdir)/m4/include_next.m4 $(top_srcdir)/m4/memchr.m4 \
+ $(top_srcdir)/m4/include_next.m4 \
+ $(top_srcdir)/m4/lib-ignore.m4 $(top_srcdir)/m4/memchr.m4 \
$(top_srcdir)/m4/mmap-anon.m4 $(top_srcdir)/m4/onceonly.m4 \
$(top_srcdir)/m4/stddef_h.m4 $(top_srcdir)/m4/string_h.m4 \
$(top_srcdir)/m4/strndup.m4 $(top_srcdir)/m4/strnlen.m4 \
@@ -226,6 +227,7 @@ HAVE_STRPBRK = @HAVE_STRPBRK@
HAVE_STRSEP = @HAVE_STRSEP@
HAVE_STRVERSCMP = @HAVE_STRVERSCMP@
HAVE_WCHAR_T = @HAVE_WCHAR_T@
+IGNORE_UNUSED_LIBRARIES_CFLAGS = @IGNORE_UNUSED_LIBRARIES_CFLAGS@
INCLUDE_NEXT = @INCLUDE_NEXT@
INCLUDE_NEXT_AS_FIRST_DIRECTIVE = @INCLUDE_NEXT_AS_FIRST_DIRECTIVE@
INSTALL = @INSTALL@
diff --git a/lib/dummy.c b/lib/dummy.c
index deffd32b..0f9a2779 100644
--- a/lib/dummy.c
+++ b/lib/dummy.c
@@ -32,7 +32,7 @@
Compiling this file, and adding its object file to the library, will
prevent the library from exporting no symbols. */
-#if defined __sun || defined __APPLE__
+#ifdef __sun
/* This declaration ensures that the library will export at least 1 symbol. */
int gl_dummy_symbol;
#else
diff --git a/m4/gnulib-cache.m4 b/m4/gnulib-cache.m4
index 564eb307..e09ed2cb 100644
--- a/m4/gnulib-cache.m4
+++ b/m4/gnulib-cache.m4
@@ -15,11 +15,12 @@
# 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-libtool --macro-prefix=gl strndup
+# gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --no-libtool --macro-prefix=gl lib-ignore strndup
# Specification in the form of a few gnulib-tool.m4 macro invocations:
gl_LOCAL_DIR([])
gl_MODULES([
+ lib-ignore
strndup
])
gl_AVOID([])
diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4
index 032577bd..4b97830a 100644
--- a/m4/gnulib-comp.m4
+++ b/m4/gnulib-comp.m4
@@ -31,6 +31,7 @@ AC_DEFUN([gl_EARLY],
# Code from module extensions:
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
# Code from module include_next:
+ # Code from module lib-ignore:
# Code from module memchr:
# Code from module stddef:
# Code from module string:
@@ -59,6 +60,8 @@ AC_DEFUN([gl_INIT],
# Code from module c++defs:
# Code from module extensions:
# Code from module include_next:
+ # Code from module lib-ignore:
+ gl_IGNORE_UNUSED_LIBRARIES
# Code from module memchr:
gl_FUNC_MEMCHR
gl_STRING_MODULE_INDICATOR([memchr])
@@ -228,6 +231,7 @@ AC_DEFUN([gl_FILE_LIST], [
m4/extensions.m4
m4/gnulib-common.m4
m4/include_next.m4
+ m4/lib-ignore.m4
m4/memchr.m4
m4/mmap-anon.m4
m4/onceonly.m4
diff --git a/m4/lib-ignore.m4 b/m4/lib-ignore.m4
new file mode 100644
index 00000000..a67b002c
--- /dev/null
+++ b/m4/lib-ignore.m4
@@ -0,0 +1,115 @@
+# If possible, ignore libraries that are not depended on.
+
+dnl Copyright (C) 2006, 2009-2010 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)])