2013-11-26 22:57:29 +00:00
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# timegm.m4 serial 8
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dnl Copyright (C) 2003, 2007, 2009, 2010 Free Software Foundation, Inc.
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2013-11-26 22:56:50 +00:00
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_TIMEGM],
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[
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AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
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AC_REQUIRE([gl_FUNC_MKTIME])
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2013-11-26 22:57:29 +00:00
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REPLACE_TIMEGM=0
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AC_CHECK_FUNCS_ONCE([timegm])
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2013-11-26 22:56:50 +00:00
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if test $ac_cv_func_timegm = yes; then
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2013-11-26 22:57:29 +00:00
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if test $ac_cv_func_working_mktime = no; then
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# Assume that timegm is buggy if mktime is.
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REPLACE_TIMEGM=1
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fi
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else
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HAVE_TIMEGM=0
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2013-11-26 22:56:50 +00:00
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fi
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2013-11-26 22:57:29 +00:00
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if test $HAVE_TIMEGM = 0 || test $REPLACE_TIMEGM = 1; then
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AC_LIBOBJ([timegm])
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2013-11-26 22:56:50 +00:00
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gl_PREREQ_TIMEGM
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fi
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])
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# Prerequisites of lib/timegm.c.
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AC_DEFUN([gl_PREREQ_TIMEGM], [
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AC_REQUIRE([gl_TIME_R])
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AC_REQUIRE([gl_FUNC_MKTIME])
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if test $ac_cv_func_working_mktime = yes; then
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AC_CHECK_FUNC([__mktime_internal], ,
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[# mktime works but it doesn't export __mktime_internal,
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# so we need to substitute our own mktime implementation.
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AC_LIBOBJ([mktime])
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AC_DEFINE([mktime], [rpl_mktime],
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2013-11-26 22:57:29 +00:00
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[Define to rpl_mktime if the replacement function should be used.])
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2013-11-26 22:56:50 +00:00
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gl_PREREQ_MKTIME])
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fi
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])
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