-dnl Copyright (C) 2003-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2003-2012 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.
-dnl serial 4
+dnl serial 7
AC_DEFUN([gl_UTIMENS],
[
- AC_LIBOBJ([utimens])
-
dnl Prerequisites of lib/utimens.c.
AC_REQUIRE([gl_FUNC_UTIMES])
AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC])
AC_REQUIRE([gl_CHECK_TYPE_STRUCT_UTIMBUF])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CHECK_FUNCS_ONCE([futimes futimesat futimens utimensat lutimes])
if test $ac_cv_func_futimens = no && test $ac_cv_func_futimesat = yes; then
AC_RUN_IFELSE([AC_LANG_PROGRAM([[
#include <stddef.h>
#include <sys/times.h>
+#include <fcntl.h>
]], [[ int fd = open ("conftest.file", O_RDWR);
if (fd < 0) return 1;
if (futimesat (fd, NULL, NULL)) return 2;
]])],
[gl_cv_func_futimesat_works=yes],
[gl_cv_func_futimesat_works=no],
- [gl_cv_func_futimesat_works="guessing no"])
+ [case "$host_os" in
+ # Guess yes on glibc systems.
+ *-gnu*) gl_cv_func_futimesat_works="guessing yes" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_futimesat_works="guessing no" ;;
+ esac
+ ])
rm -f conftest.file])
- if test "$gl_cv_func_futimesat_works" != yes; then
- AC_DEFINE([FUTIMESAT_NULL_BUG], [1],
- [Define to 1 if futimesat mishandles a NULL file name.])
- fi
+ case "$gl_cv_func_futimesat_works" in
+ *yes) ;;
+ *)
+ AC_DEFINE([FUTIMESAT_NULL_BUG], [1],
+ [Define to 1 if futimesat mishandles a NULL file name.])
+ ;;
+ esac
fi
])