-main() {
-struct stat s, t;
-exit(!(stat ("conftestdata", &s) == 0 && utimes("conftestdata", (long *)0) == 0
-&& stat("conftestdata", &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 $ac_cv_func_utimes_null = yes; then
- if test x = y; then
- # This code is deliberately never run via ./configure.
- # FIXME: this is a hack to make autoheader put the corresponding
- # HAVE_* undef for this symbol in config.h.in. This saves me the
- # trouble of having to maintain the #undef in acconfig.h manually.
- AC_CHECK_FUNCS(UTIMES_NULL)
- fi
- # Defining it this way (rather than via AC_DEFINE) short-circuits the
- # autoheader check -- autoheader doesn't know it's already been taken
- # care of by the hack above.
- ac_kludge=HAVE_UTIMES_NULL
- AC_DEFINE_UNQUOTED($ac_kludge)
- fi
- ]
-)
+#include <sys/time.h>
+#include <time.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <utime.h>
+
+int
+main ()
+{
+ static struct timeval timeval[2] = {{9, 10}, {999999, 999999}};
+ struct stat sbuf;
+ char const *file = "conftest.utimes";
+ FILE *f;
+ time_t now;
+
+ int ok = ((f = fopen (file, "w"))
+ && fclose (f) == 0
+ && utimes (file, timeval) == 0
+ && lstat (file, &sbuf) == 0
+ && sbuf.st_atime == timeval[0].tv_sec
+ && sbuf.st_mtime == timeval[1].tv_sec);
+ unlink (file);
+ if (!ok)
+ exit (1);
+
+ ok =
+ ((f = fopen (file, "w"))
+ && fclose (f) == 0
+ && time (&now) != (time_t)-1
+ && utimes (file, NULL) == 0
+ && lstat (file, &sbuf) == 0
+ && now - sbuf.st_atime <= 2
+ && now - sbuf.st_mtime <= 2);
+ unlink (file);
+
+ exit (!ok);
+}
+ ]])],
+ [gl_cv_func_working_utimes=yes],
+ [gl_cv_func_working_utimes=no],
+ [gl_cv_func_working_utimes=no])])
+
+ if test $gl_cv_func_working_utimes = yes; then
+ AC_DEFINE([HAVE_WORKING_UTIMES], 1, [Define if utimes works properly. ])
+ fi
+])