| 1 | # langinfo_h.m4 serial 7
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| 2 | dnl Copyright (C) 2009-2012 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_LANGINFO_H],
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| 8 | [
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| 9 | AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
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| 10 |
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| 11 | dnl Persuade glibc-2.0.6 <langinfo.h> to define CODESET.
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| 12 | AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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| 13 |
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| 14 | dnl <langinfo.h> is always overridden, because of GNULIB_POSIXCHECK.
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| 15 | gl_CHECK_NEXT_HEADERS([langinfo.h])
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| 16 |
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| 17 | dnl Determine whether <langinfo.h> exists. It is missing on mingw and BeOS.
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| 18 | HAVE_LANGINFO_CODESET=0
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| 19 | HAVE_LANGINFO_T_FMT_AMPM=0
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| 20 | HAVE_LANGINFO_ERA=0
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| 21 | HAVE_LANGINFO_YESEXPR=0
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| 22 | AC_CHECK_HEADERS_ONCE([langinfo.h])
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| 23 | if test $ac_cv_header_langinfo_h = yes; then
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| 24 | HAVE_LANGINFO_H=1
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| 25 | dnl Determine what <langinfo.h> defines. CODESET and ERA etc. are missing
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| 26 | dnl on OpenBSD 3.8. T_FMT_AMPM and YESEXPR, NOEXPR are missing on IRIX 5.3.
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| 27 | AC_CACHE_CHECK([whether langinfo.h defines CODESET],
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| 28 | [gl_cv_header_langinfo_codeset],
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| 29 | [AC_COMPILE_IFELSE(
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| 30 | [AC_LANG_PROGRAM([[#include <langinfo.h>
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| 31 | int a = CODESET;
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| 32 | ]])],
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| 33 | [gl_cv_header_langinfo_codeset=yes],
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| 34 | [gl_cv_header_langinfo_codeset=no])
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| 35 | ])
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| 36 | if test $gl_cv_header_langinfo_codeset = yes; then
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| 37 | HAVE_LANGINFO_CODESET=1
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| 38 | fi
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| 39 | AC_CACHE_CHECK([whether langinfo.h defines T_FMT_AMPM],
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| 40 | [gl_cv_header_langinfo_t_fmt_ampm],
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| 41 | [AC_COMPILE_IFELSE(
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| 42 | [AC_LANG_PROGRAM([[#include <langinfo.h>
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| 43 | int a = T_FMT_AMPM;
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| 44 | ]])],
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| 45 | [gl_cv_header_langinfo_t_fmt_ampm=yes],
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| 46 | [gl_cv_header_langinfo_t_fmt_ampm=no])
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| 47 | ])
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| 48 | if test $gl_cv_header_langinfo_t_fmt_ampm = yes; then
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| 49 | HAVE_LANGINFO_T_FMT_AMPM=1
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| 50 | fi
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| 51 | AC_CACHE_CHECK([whether langinfo.h defines ERA],
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| 52 | [gl_cv_header_langinfo_era],
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| 53 | [AC_COMPILE_IFELSE(
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| 54 | [AC_LANG_PROGRAM([[#include <langinfo.h>
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| 55 | int a = ERA;
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| 56 | ]])],
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| 57 | [gl_cv_header_langinfo_era=yes],
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| 58 | [gl_cv_header_langinfo_era=no])
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| 59 | ])
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| 60 | if test $gl_cv_header_langinfo_era = yes; then
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| 61 | HAVE_LANGINFO_ERA=1
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| 62 | fi
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| 63 | AC_CACHE_CHECK([whether langinfo.h defines YESEXPR],
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| 64 | [gl_cv_header_langinfo_yesexpr],
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| 65 | [AC_COMPILE_IFELSE(
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| 66 | [AC_LANG_PROGRAM([[#include <langinfo.h>
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| 67 | int a = YESEXPR;
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| 68 | ]])],
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| 69 | [gl_cv_header_langinfo_yesexpr=yes],
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| 70 | [gl_cv_header_langinfo_yesexpr=no])
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| 71 | ])
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| 72 | if test $gl_cv_header_langinfo_yesexpr = yes; then
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| 73 | HAVE_LANGINFO_YESEXPR=1
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| 74 | fi
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| 75 | else
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| 76 | HAVE_LANGINFO_H=0
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| 77 | fi
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| 78 | AC_SUBST([HAVE_LANGINFO_H])
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| 79 | AC_SUBST([HAVE_LANGINFO_CODESET])
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| 80 | AC_SUBST([HAVE_LANGINFO_T_FMT_AMPM])
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| 81 | AC_SUBST([HAVE_LANGINFO_ERA])
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| 82 | AC_SUBST([HAVE_LANGINFO_YESEXPR])
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| 83 |
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| 84 | dnl Check for declarations of anything we want to poison if the
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| 85 | dnl corresponding gnulib module is not in use.
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| 86 | gl_WARN_ON_USE_PREPARE([[#include <langinfo.h>
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| 87 | ]], [nl_langinfo])
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| 88 | ])
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| 89 |
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| 90 | AC_DEFUN([gl_LANGINFO_MODULE_INDICATOR],
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| 91 | [
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| 92 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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| 93 | AC_REQUIRE([gl_LANGINFO_H_DEFAULTS])
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| 94 | gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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| 95 | dnl Define it also as a C macro, for the benefit of the unit tests.
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| 96 | gl_MODULE_INDICATOR_FOR_TESTS([$1])
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| 97 | ])
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| 98 |
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| 99 | AC_DEFUN([gl_LANGINFO_H_DEFAULTS],
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| 100 | [
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| 101 | GNULIB_NL_LANGINFO=0; AC_SUBST([GNULIB_NL_LANGINFO])
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| 102 | dnl Assume proper GNU behavior unless another module says otherwise.
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| 103 | HAVE_NL_LANGINFO=1; AC_SUBST([HAVE_NL_LANGINFO])
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| 104 | REPLACE_NL_LANGINFO=0; AC_SUBST([REPLACE_NL_LANGINFO])
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| 105 | ])
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