1#serial 7 2 3# Copyright (C) 1998, 1999, 2001, 2003, 2004, 2006 Free Software 4# Foundation, Inc. 5 6# This file is free software; the Free Software Foundation 7# gives unlimited permission to copy and/or distribute it, 8# with or without modifications, as long as this notice is preserved. 9 10dnl Shamelessly cloned from acspecific.m4's AC_FUNC_UTIME_NULL, 11dnl then do case-insensitive s/utime/utimes/. 12 13AC_DEFUN([gl_FUNC_UTIMES_NULL], 14[AC_CACHE_CHECK(whether utimes accepts a null argument, ac_cv_func_utimes_null, 15[rm -f conftest.data; > conftest.data 16AC_TRY_RUN([ 17/* In case stat has been defined to rpl_stat, undef it here. */ 18#undef stat 19#include <sys/types.h> 20#include <sys/stat.h> 21#include <sys/time.h> 22int 23main () { 24struct stat s, t; 25return ! (stat ("conftest.data", &s) == 0 26 && utimes ("conftest.data", 0) == 0 27 && stat ("conftest.data", &t) == 0 28 && t.st_mtime >= s.st_mtime 29 && t.st_mtime - s.st_mtime < 120)); 30}], 31 ac_cv_func_utimes_null=yes, 32 ac_cv_func_utimes_null=no, 33 ac_cv_func_utimes_null=no) 34rm -f core core.* *.core]) 35 36 if test $ac_cv_func_utimes_null = yes; then 37 AC_DEFINE(HAVE_UTIMES_NULL, 1, 38 [Define if utimes accepts a null argument]) 39 fi 40 ] 41) 42