1 files changed, 0 insertions, 134 deletions
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.])
-])