-# timegm.m4 serial 7
-dnl Copyright (C) 2003, 2007, 2009, 2010 Free Software Foundation, Inc.
+# timegm.m4 serial 8
+dnl Copyright (C) 2003, 2007, 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.
AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_MKTIME])
REPLACE_TIMEGM=0
- if test $ac_cv_func_working_mktime = no; then
- # Assume that timegm is buggy if mktime is.
- REPLACE_TIMEGM=1
- else
- AC_CHECK_FUNCS([timegm])
- if test $ac_cv_func_timegm != yes; then
+ AC_CHECK_FUNCS_ONCE([timegm])
+ if test $ac_cv_func_timegm = yes; then
+ if test $ac_cv_func_working_mktime = no; then
+ # Assume that timegm is buggy if mktime is.
REPLACE_TIMEGM=1
fi
+ else
+ HAVE_TIMEGM=0
fi
- if test $REPLACE_TIMEGM = 1; then
+ if test $HAVE_TIMEGM = 0 || test $REPLACE_TIMEGM = 1; then
AC_LIBOBJ([timegm])
gl_PREREQ_TIMEGM
fi