1 # nl_langinfo.m4 serial 8
2 dnl Copyright (C) 2009-2020 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 AC_DEFUN([gl_FUNC_NL_LANGINFO],
9 AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
10 AC_REQUIRE([gl_LANGINFO_H])
11 AC_CHECK_FUNCS_ONCE([nl_langinfo])
12 AC_REQUIRE([AC_CANONICAL_HOST])
13 AC_REQUIRE([gl_FUNC_SETLOCALE_NULL])
14 AC_REQUIRE([gl_PTHREADLIB])
15 AC_CHECK_HEADERS_ONCE([threads.h])
16 if test $ac_cv_func_nl_langinfo = yes; then
17 # On Irix 6.5, YESEXPR is defined, but nl_langinfo(YESEXPR) is broken.
18 AC_CACHE_CHECK([whether YESEXPR works],
19 [gl_cv_func_nl_langinfo_yesexpr_works],
21 [AC_LANG_PROGRAM([[#include <langinfo.h>
22 ]], [[return !*nl_langinfo(YESEXPR);
24 [gl_cv_func_nl_langinfo_yesexpr_works=yes],
25 [gl_cv_func_nl_langinfo_yesexpr_works=no],
28 # Guess no on irix systems.
29 irix*) gl_cv_func_nl_langinfo_yesexpr_works="guessing no";;
30 # Guess yes elsewhere.
31 *) gl_cv_func_nl_langinfo_yesexpr_works="guessing yes";;
35 case $gl_cv_func_nl_langinfo_yesexpr_works in
36 *yes) FUNC_NL_LANGINFO_YESEXPR_WORKS=1 ;;
37 *) FUNC_NL_LANGINFO_YESEXPR_WORKS=0 ;;
39 AC_DEFINE_UNQUOTED([FUNC_NL_LANGINFO_YESEXPR_WORKS],
40 [$FUNC_NL_LANGINFO_YESEXPR_WORKS],
41 [Define to 1 if nl_langinfo (YESEXPR) returns a non-empty string.])
42 # On Solaris 10 and Solaris 11.3, nl_langinfo is not multithread-safe.
44 solaris*) NL_LANGINFO_MTSAFE=0 ;;
45 *) NL_LANGINFO_MTSAFE=1 ;;
47 AC_DEFINE_UNQUOTED([NL_LANGINFO_MTSAFE], [$NL_LANGINFO_MTSAFE],
48 [Define to 1 if nl_langinfo is multithread-safe.])
49 if test $HAVE_LANGINFO_CODESET = 1 \
50 && test $HAVE_LANGINFO_T_FMT_AMPM = 1 \
51 && test $HAVE_LANGINFO_ALTMON = 1 \
52 && test $HAVE_LANGINFO_ERA = 1 \
53 && test $FUNC_NL_LANGINFO_YESEXPR_WORKS = 1 \
54 && test $NL_LANGINFO_MTSAFE = 1; then
58 AC_DEFINE([REPLACE_NL_LANGINFO], [1],
59 [Define if nl_langinfo exists but is overridden by gnulib.])
64 if test $HAVE_NL_LANGINFO = 0 || test $HAVE_LANGINFO_CODESET = 0; then
65 LIB_NL_LANGINFO="$LIB_SETLOCALE_NULL"
69 dnl LIB_NL_LANGINFO is expected to be empty everywhere.
70 AC_SUBST([LIB_NL_LANGINFO])
73 # Prerequisites of lib/nl_langinfo-lock.c.
74 AC_DEFUN([gl_PREREQ_NL_LANGINFO_LOCK],