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emacs/m4/timegm.m4
2024-05-11 18:46:26 -07:00

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# timegm.m4
# serial 16
dnl Copyright (C) 2003, 2007, 2009-2024 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_DEFUN([gl_FUNC_TIMEGM],
[
AC_REQUIRE([gl_TIME_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_MKTIME_WORKS])
gl_CHECK_FUNCS_ANDROID([timegm], [[#include <time.h>]])
if test $ac_cv_func_timegm = yes; then
if test "$gl_cv_func_working_mktime" != yes; then
# Assume that timegm is buggy if mktime is.
REPLACE_TIMEGM=1
fi
else
HAVE_TIMEGM=0
case "$gl_cv_onwards_func_timegm" in
future*) REPLACE_TIMEGM=1 ;;
esac
fi
])
# Prerequisites of lib/timegm.c.
AC_DEFUN([gl_PREREQ_TIMEGM], [
:
])