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annotate m4/timegm.m4 @ 9209:5a0294ce5372

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Track CVS Autoconf on AC_USE_SYSTEM_EXTENSIONS. * m4/extensions.m4 (AC_USE_SYSTEM_EXTENSIONS): Update to CVS Autoconf definition. * modules/euidaccess (Depends-on): Add extensions, for AC_USE_SYSTEM_EXTENSIONS with autoconf <= 2.59. * modules/fnmatch (Depends-on): Likewise. * modules/getaddrinfo (Depends-on): Likewise. * modules/getdelim (Depends-on): Likewise. * modules/getline (Depends-on): Likewise. * modules/getsubopt (Depends-on): Likewise. * modules/gettext (Depends-on): Likewise. * modules/group-member (Depends-on): Likewise. * modules/mbchar (Depends-on): Likewise. * modules/memmem (Depends-on): Likewise. * modules/mempcpy (Depends-on): Likewise. * modules/memrchr (Depends-on): Likewise. * modules/pagealign_alloc (Depends-on): Likewise. * modules/readutmp (Depends-on): Likewise. * modules/stpcpy (Depends-on): Likewise. * modules/stpncpy (Depends-on): Likewise. * modules/strchrnul (Depends-on): Likewise. * modules/strndup (Depends-on): Likewise. * modules/strsep (Depends-on): Likewise. * modules/strverscmp (Depends-on): Likewise. * modules/vasprintf (Depends-on): Likewise. * modules/wcwidth (Depends-on): Likewise. * m4/euidaccess.m4 (gl_FUNC_EUIDACCESS): AC_GNU_SOURCE will be obsolete in Autoconf 2.62; use AC_USE_SYSTEM_EXTENSIONS instead. * m4/fnmatch.m4 (gl_FUNC_FNMATCH_GNU): Likewise. * m4/getaddrinfo.m4 (gl_PREREQ_GETADDR_INFO): Likewise. * m4/getdelim.m4 (gl_FUNC_GETDELIM): Likewise. * m4/getline.m4 (gl_FUNC_GETLINE): Likewise. * m4/getsubopt.m4 (gl_FUNC_GETSUBOPT): Likewise. * m4/glob.m4 (gl_PREREQ_GLOB): Likewise. * m4/group-member.m4 (gl_FUNC_GROUP_MEMBER): Likewise. * m4/mbchar.m4 (gl_MBCHAR): Likewise. * m4/memmem.m4 (gl_FUNC_MEMMEM): Likewise. * m4/mempcpy.m4 (gl_FUNC_MEMPCPY): Likewise. * m4/memrchr.m4 (gl_FUNC_MEMRCHR): Likewise. * m4/mmap-anon.m4 (gl_FUNC_MMAP_ANON): Likewise. * m4/pagealign_alloc.m4 (gl_PAGEALIGN_ALLOC): Likewise. * m4/readutmp.m4 (gl_READUTMP): Likewise. * m4/regex.m4 (gl_PREREQ_REGEX): Likewise. * m4/stpcpy.m4 (gl_FUNC_STPCPY): Likewise. * m4/stpncpy.m4 (gl_FUNC_STPNCPY): Likewise. * m4/strchrnul.m4 (gl_FUNC_STRCHRNUL): Likewise. * m4/strndup.m4 (gl_FUNC_STRNDUP): Likewise. * m4/strnlen.m4 (gl_FUNC_STRNLEN): Likewise. * m4/strsep.m4 (gl_FUNC_STRSEP): Likewise. * m4/strverscmp.m4 (gl_FUNC_STRVERSCMP): Likewise. * m4/vasprintf.m4 (gl_PREREQ_VASPRINTF_H): Likewise. * m4/wcwidth.m4 (gl_FUNC_WCWIDTH): Likewise. * m4/lock.m4 (gl_LOCK_EARLY_BODY): Likewise, but provide fallback, so that lock.m4 can be used in gettext without extensions module.
author Eric Blake <ebb9@byu.net>
date Wed, 12 Sep 2007 15:59:57 +0000
parents 0ead70460e39
children f6cba5a556ce
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1 # timegm.m4 serial 5
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2 dnl Copyright (C) 2003, 2007 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 AC_DEFUN([gl_FUNC_TIMEGM],
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8 [
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9 AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
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10 AC_REQUIRE([gl_FUNC_MKTIME])
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11 if test $ac_cv_func_working_mktime = no; then
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12 # Assume that timegm is buggy if mktime is.
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13 AC_LIBOBJ([timegm])
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14 ac_cv_func_timegm=no
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15 else
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16 AC_REPLACE_FUNCS(timegm)
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17 fi
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18 REPLACE_TIMEGM=1
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19 if test $ac_cv_func_timegm = yes; then
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20 AC_CHECK_DECLS([timegm], [REPLACE_TIMEGM=0], [], [#include <time.h>])
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21 fi
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22 if test $REPLACE_TIMEGM = 1; then
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23 gl_PREREQ_TIMEGM
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24 fi
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25 ])
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26
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27 # Prerequisites of lib/timegm.c.
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28 AC_DEFUN([gl_PREREQ_TIMEGM], [
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29 AC_REQUIRE([gl_TIME_R])
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30 AC_REQUIRE([gl_FUNC_MKTIME])
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31 if test $ac_cv_func_working_mktime = yes; then
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32 AC_CHECK_FUNC(__mktime_internal, ,
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33 [# mktime works but it doesn't export __mktime_internal,
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34 # so we need to substitute our own mktime implementation.
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35 AC_LIBOBJ([mktime])
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36 AC_DEFINE([mktime], [rpl_mktime],
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37 [Define to rpl_mktime if the replacement function should be used.])
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38 gl_PREREQ_MKTIME])
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39 fi
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40 ])