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annotate m4/nl_langinfo.m4 @ 40057:b06060465f09

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maint: Run 'make update-copyright'
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 01 Jan 2019 00:25:11 +0100
parents a7004c2ef842
children
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a7004c2ef842 nl_langinfo: Override the system's nl_langinfo() when needed.
Bruno Haible <bruno@clisp.org>
parents: 19484
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1 # nl_langinfo.m4 serial 6
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2 dnl Copyright (C) 2009-2019 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_NL_LANGINFO],
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8 [
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9 AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
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10 AC_REQUIRE([gl_LANGINFO_H])
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11 AC_CHECK_FUNCS_ONCE([nl_langinfo])
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12 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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13 if test $ac_cv_func_nl_langinfo = yes; then
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14 # On Irix 6.5, YESEXPR is defined, but nl_langinfo(YESEXPR) is broken.
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15 AC_CACHE_CHECK([whether YESEXPR works],
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16 [gl_cv_func_nl_langinfo_yesexpr_works],
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17 [AC_RUN_IFELSE(
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18 [AC_LANG_PROGRAM([[#include <langinfo.h>
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19 ]], [[return !*nl_langinfo(YESEXPR);
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20 ]])],
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21 [gl_cv_func_nl_langinfo_yesexpr_works=yes],
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22 [gl_cv_func_nl_langinfo_yesexpr_works=no],
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23 [
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24 case "$host_os" in
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25 # Guess no on irix systems.
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26 irix*) gl_cv_func_nl_langinfo_yesexpr_works="guessing no";;
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27 # Guess yes elsewhere.
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28 *) gl_cv_func_nl_langinfo_yesexpr_works="guessing yes";;
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29 esac
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30 ])
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31 ])
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32 case $gl_cv_func_nl_langinfo_yesexpr_works in
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33 *yes) FUNC_NL_LANGINFO_YESEXPR_WORKS=1 ;;
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34 *) FUNC_NL_LANGINFO_YESEXPR_WORKS=0 ;;
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35 esac
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36 AC_DEFINE_UNQUOTED([FUNC_NL_LANGINFO_YESEXPR_WORKS],
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37 [$FUNC_NL_LANGINFO_YESEXPR_WORKS],
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38 [Define to 1 if nl_langinfo (YESEXPR) returns a non-empty string.])
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39 if test $HAVE_LANGINFO_CODESET = 1 \
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40 && test $HAVE_LANGINFO_T_FMT_AMPM = 1 \
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41 && test $HAVE_LANGINFO_ALTMON = 1 \
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42 && test $HAVE_LANGINFO_ERA = 1 \
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43 && test $FUNC_NL_LANGINFO_YESEXPR_WORKS = 1; then
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44 :
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45 else
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46 REPLACE_NL_LANGINFO=1
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47 AC_DEFINE([REPLACE_NL_LANGINFO], [1],
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48 [Define if nl_langinfo exists but is overridden by gnulib.])
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49 fi
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50 else
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51 HAVE_NL_LANGINFO=0
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52 fi
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53 ])