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71 lines
2.6 KiB
71 lines
2.6 KiB
# serial 11 |
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# Copyright (C) 2009-2017 Free Software Foundation, Inc. |
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# |
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# This file is free software; the Free Software Foundation |
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# gives unlimited permission to copy and/or distribute it, |
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# with or without modifications, as long as this notice is preserved. |
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AC_DEFUN([gl_FUNC_STAT], |
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[ |
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles |
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AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) |
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AC_CHECK_FUNCS_ONCE([lstat]) |
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dnl mingw is the only known platform where stat(".") and stat("./") differ |
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AC_CACHE_CHECK([whether stat handles trailing slashes on directories], |
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[gl_cv_func_stat_dir_slash], |
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[AC_RUN_IFELSE( |
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[AC_LANG_PROGRAM( |
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[[#include <sys/stat.h> |
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]], [[struct stat st; return stat (".", &st) != stat ("./", &st);]])], |
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[gl_cv_func_stat_dir_slash=yes], [gl_cv_func_stat_dir_slash=no], |
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[case $host_os in |
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mingw*) gl_cv_func_stat_dir_slash="guessing no";; |
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*) gl_cv_func_stat_dir_slash="guessing yes";; |
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esac])]) |
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dnl AIX 7.1, Solaris 9, mingw64 mistakenly succeed on stat("file/"). |
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dnl (For mingw, this is due to a broken stat() override in libmingwex.a.) |
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dnl FreeBSD 7.2 mistakenly succeeds on stat("link-to-file/"). |
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AC_CACHE_CHECK([whether stat handles trailing slashes on files], |
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[gl_cv_func_stat_file_slash], |
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[touch conftest.tmp |
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# Assume that if we have lstat, we can also check symlinks. |
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if test $ac_cv_func_lstat = yes; then |
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ln -s conftest.tmp conftest.lnk |
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fi |
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AC_RUN_IFELSE( |
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[AC_LANG_PROGRAM( |
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[[#include <sys/stat.h> |
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]], [[int result = 0; |
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struct stat st; |
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if (!stat ("conftest.tmp/", &st)) |
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result |= 1; |
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#if HAVE_LSTAT |
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if (!stat ("conftest.lnk/", &st)) |
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result |= 2; |
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#endif |
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return result; |
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]])], |
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[gl_cv_func_stat_file_slash=yes], [gl_cv_func_stat_file_slash=no], |
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[case "$host_os" in |
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# Guess yes on glibc systems. |
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*-gnu*) gl_cv_func_stat_file_slash="guessing yes" ;; |
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# If we don't know, assume the worst. |
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*) gl_cv_func_stat_file_slash="guessing no" ;; |
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esac |
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]) |
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rm -f conftest.tmp conftest.lnk]) |
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case $gl_cv_func_stat_dir_slash in |
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*no) REPLACE_STAT=1 |
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AC_DEFINE([REPLACE_FUNC_STAT_DIR], [1], [Define to 1 if stat needs |
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help when passed a directory name with a trailing slash]);; |
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esac |
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case $gl_cv_func_stat_file_slash in |
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*no) REPLACE_STAT=1 |
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AC_DEFINE([REPLACE_FUNC_STAT_FILE], [1], [Define to 1 if stat needs |
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help when passed a file name with a trailing slash]);; |
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esac |
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]) |
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# Prerequisites of lib/stat.c. |
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AC_DEFUN([gl_PREREQ_STAT], [:])
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