1# serial 16 2 3# Copyright (C) 2009-2020 Free Software Foundation, Inc. 4# 5# This file is free software; the Free Software Foundation 6# gives unlimited permission to copy and/or distribute it, 7# with or without modifications, as long as this notice is preserved. 8 9AC_DEFUN([gl_FUNC_STAT], 10[ 11 AC_REQUIRE([AC_CANONICAL_HOST]) 12 AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS]) 13 AC_CHECK_FUNCS_ONCE([lstat]) 14 case "$host_os" in 15 mingw*) 16 dnl On this platform, the original stat() returns st_atime, st_mtime, 17 dnl st_ctime values that are affected by the time zone. 18 dnl REPLACE_STAT=1 19 ;; 20 *) 21 dnl AIX 7.1, Solaris 9, mingw64 mistakenly succeed on stat("file/"). 22 dnl (For mingw, this is due to a broken stat() override in libmingwex.a.) 23 dnl FreeBSD 7.2 mistakenly succeeds on stat("link-to-file/"). 24 AC_CACHE_CHECK([whether stat handles trailing slashes on files], 25 [gl_cv_func_stat_file_slash], 26 [touch conftest.tmp 27 # Assume that if we have lstat, we can also check symlinks. 28 if test $ac_cv_func_lstat = yes; then 29 ln -s conftest.tmp conftest.lnk 30 fi 31 AC_RUN_IFELSE( 32 [AC_LANG_PROGRAM( 33 [[#include <sys/stat.h> 34]], [[int result = 0; 35 struct stat st; 36 if (!stat ("conftest.tmp/", &st)) 37 result |= 1; 38#if HAVE_LSTAT 39 if (!stat ("conftest.lnk/", &st)) 40 result |= 2; 41#endif 42 return result; 43 ]])], 44 [gl_cv_func_stat_file_slash=yes], [gl_cv_func_stat_file_slash=no], 45 [case "$host_os" in 46 # Guess yes on Linux systems. 47 linux-* | linux) gl_cv_func_stat_file_slash="guessing yes" ;; 48 # Guess yes on glibc systems. 49 *-gnu* | gnu*) gl_cv_func_stat_file_slash="guessing yes" ;; 50 # Guess yes on bsd systems. 51 *bsd*) gl_cv_func_stat_file_slash="guessing yes" ;; 52 # If we don't know, obey --enable-cross-guesses. 53 *) gl_cv_func_stat_file_slash="$gl_cross_guess_normal" ;; 54 esac 55 ]) 56 rm -f conftest.tmp conftest.lnk]) 57 case $gl_cv_func_stat_file_slash in 58 *no) 59 REPLACE_STAT=1 60 AC_DEFINE([REPLACE_FUNC_STAT_FILE], [1], [Define to 1 if stat needs 61 help when passed a file name with a trailing slash]);; 62 esac 63 case $host_os in 64 dnl Solaris stat can return a negative tv_nsec. 65 solaris*) 66 REPLACE_FSTAT=1 ;; 67 esac 68 ;; 69 esac 70]) 71 72# Prerequisites of lib/stat.c and lib/stat-w32.c. 73AC_DEFUN([gl_PREREQ_STAT], [ 74 AC_REQUIRE([gl_HEADER_SYS_STAT_H]) 75 : 76]) 77