kc3-lang/gnulib/m4/utimes-null.m4
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Hash : f2b62ff7
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Date : 2006-04-24T07:35:24
* fsusage.m4 (gl_FILE_SYSTEM_USAGE): Use return, not exit. Don't assume that exit status -1 is valid. * nanosleep.m4 (gl_FUNC_NANOSLEEP): Likewise. * putenv.m4 (gl_FUNC_PUTENV): Likewise. * rmdir-errno.m4 (gl_FUNC_RMDIR_NOTEMPTY): Likewise. * readdir.m4 (GL_FUNC_READDIR): Include <stdlib.h>. * rename.m4 (vb_FUNC_RENAME): Likewise. * unlink-busy.m4 (gl_FUNC_UNLINK_BUSY_TEXT): Use AC_RUN_IFELSE, not AC_TRY_RUN. Use return, not exit. Don't assume that functions can be used without declaring them, or that you can exit with status -1. * utimes-null.m4 (gl_FUNC_UTIMES_NULL): Likewise.
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m4/utimes-null.m4
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#serial 7 # Copyright (C) 1998, 1999, 2001, 2003, 2004, 2006 Free Software # Foundation, Inc. # This file is free software; the Free Software Foundation # gives unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. dnl Shamelessly cloned from acspecific.m4's AC_FUNC_UTIME_NULL, dnl then do case-insensitive s/utime/utimes/. AC_DEFUN([gl_FUNC_UTIMES_NULL], [AC_CACHE_CHECK(whether utimes accepts a null argument, ac_cv_func_utimes_null, [rm -f conftest.data; > conftest.data AC_TRY_RUN([ /* In case stat has been defined to rpl_stat, undef it here. */ #undef stat #include <sys/types.h> #include <sys/stat.h> #include <sys/time.h> int main () { struct stat s, t; return ! (stat ("conftest.data", &s) == 0 && utimes ("conftest.data", 0) == 0 && stat ("conftest.data", &t) == 0 && t.st_mtime >= s.st_mtime && t.st_mtime - s.st_mtime < 120)); }], ac_cv_func_utimes_null=yes, ac_cv_func_utimes_null=no, ac_cv_func_utimes_null=no) rm -f core core.* *.core]) if test $ac_cv_func_utimes_null = yes; then AC_DEFINE(HAVE_UTIMES_NULL, 1, [Define if utimes accepts a null argument]) fi ] )