-# serial 4
+# serial 7
-# Copyright (C) 2003, 2007, 2009 Free Software Foundation, Inc.
+# Copyright (C) 2003, 2007, 2009-2013 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.
# Written by Paul Eggert and Jim Meyering.
+# A placeholder to ensure that this m4 file gets included by aclocal.
+AC_DEFUN([gl_FUNC_TZSET], [])
+
+# Set gl_cv_func_tzset_clobber.
AC_DEFUN([gl_FUNC_TZSET_CLOBBER],
[
AC_REQUIRE([gl_HEADER_SYS_TIME_H])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether tzset clobbers localtime buffer],
gl_cv_func_tzset_clobber,
[
putenv ("TZ=EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00");
tzset ();
return (p->tm_year != s.tm_year
- || p->tm_mon != s.tm_mon
- || p->tm_mday != s.tm_mday
- || p->tm_hour != s.tm_hour
- || p->tm_min != s.tm_min
- || p->tm_sec != s.tm_sec);
+ || p->tm_mon != s.tm_mon
+ || p->tm_mday != s.tm_mday
+ || p->tm_hour != s.tm_hour
+ || p->tm_min != s.tm_min
+ || p->tm_sec != s.tm_sec);
}
]])],
[gl_cv_func_tzset_clobber=no],
[gl_cv_func_tzset_clobber=yes],
- [gl_cv_func_tzset_clobber=yes])])
+ [case "$host_os" in
+ # Guess all is fine on glibc systems.
+ *-gnu*) gl_cv_func_tzset_clobber="guessing no" ;;
+ # If we don't know, assume the worst.
+ *) gl_cv_func_tzset_clobber="guessing yes" ;;
+ esac
+ ])])
AC_DEFINE([HAVE_RUN_TZSET_TEST], [1],
[Define to 1 if you have run the test for working tzset.])
-
- if test $gl_cv_func_tzset_clobber = yes; then
- gl_GETTIMEOFDAY_REPLACE_LOCALTIME
-
- AC_DEFINE([tzset], [rpl_tzset],
- [Define to rpl_tzset if the wrapper function should be used.])
- AC_DEFINE([TZSET_CLOBBERS_LOCALTIME], [1],
- [Define if tzset clobbers localtime's static buffer.])
- fi
])