-# serial 3
+# serial 4
# See if we need to provide utimensat replacement.
-dnl Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
else
AC_CACHE_CHECK([whether utimensat works],
[gl_cv_func_utimensat_works],
- [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
#include <fcntl.h>
#include <sys/stat.h>
#include <unistd.h>
-]], [[struct timespec ts[2] = { { 1, UTIME_OMIT }, { 1, UTIME_NOW } };
- struct stat st;
- const char *f = "conftest.file";
- if (close (creat (f, 0600))) return 1;
- if (utimensat (AT_FDCWD, f, NULL, AT_SYMLINK_NOFOLLOW)) return 2;
- if (utimensat (AT_FDCWD, f, ts, 0)) return 3;
- sleep (1);
- ts[0].tv_nsec = UTIME_NOW;
- ts[1].tv_nsec = UTIME_OMIT;
- if (utimensat (AT_FDCWD, f, ts, 0)) return 4;
- if (stat (f, &st)) return 5;
- if (st.st_ctime < st.st_atime) return 6;]])],
+]], [[int result = 0;
+ const char *f = "conftest.file";
+ if (close (creat (f, 0600)))
+ return 1;
+ /* Test whether the AT_SYMLINK_NOFOLLOW flag is supported. */
+ {
+ if (utimensat (AT_FDCWD, f, NULL, AT_SYMLINK_NOFOLLOW))
+ result |= 2;
+ }
+ /* Test whether UTIME_NOW and UTIME_OMIT work. */
+ {
+ struct timespec ts[2] = { { 1, UTIME_OMIT }, { 1, UTIME_NOW } };
+ if (utimensat (AT_FDCWD, f, ts, 0))
+ result |= 4;
+ }
+ sleep (1);
+ {
+ struct timespec ts[2] = { { 1, UTIME_NOW }, { 1, UTIME_OMIT } };
+ struct stat st;
+ if (utimensat (AT_FDCWD, f, ts, 0))
+ result |= 8;
+ if (stat (f, &st))
+ result |= 16;
+ else if (st.st_ctime < st.st_atime)
+ result |= 32;
+ }
+ return result;
+ ]])],
dnl FIXME: simplify this in 2012, when file system bugs are no longer common
[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#ifdef __linux__