| 1 | # langinfo_h.m4 serial 7 |
| 2 | dnl Copyright (C) 2009-2014 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. |
| 6 | |
| 7 | AC_DEFUN([gl_LANGINFO_H], |
| 8 | [ |
| 9 | AC_REQUIRE([gl_LANGINFO_H_DEFAULTS]) |
| 10 | |
| 11 | dnl Persuade glibc-2.0.6 <langinfo.h> to define CODESET. |
| 12 | AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) |
| 13 | |
| 14 | dnl <langinfo.h> is always overridden, because of GNULIB_POSIXCHECK. |
| 15 | gl_CHECK_NEXT_HEADERS([langinfo.h]) |
| 16 | |
| 17 | dnl Determine whether <langinfo.h> exists. It is missing on mingw and BeOS. |
| 18 | HAVE_LANGINFO_CODESET=0 |
| 19 | HAVE_LANGINFO_T_FMT_AMPM=0 |
| 20 | HAVE_LANGINFO_ERA=0 |
| 21 | HAVE_LANGINFO_YESEXPR=0 |
| 22 | AC_CHECK_HEADERS_ONCE([langinfo.h]) |
| 23 | if test $ac_cv_header_langinfo_h = yes; then |
| 24 | HAVE_LANGINFO_H=1 |
| 25 | dnl Determine what <langinfo.h> defines. CODESET and ERA etc. are missing |
| 26 | dnl on OpenBSD 3.8. T_FMT_AMPM and YESEXPR, NOEXPR are missing on IRIX 5.3. |
| 27 | AC_CACHE_CHECK([whether langinfo.h defines CODESET], |
| 28 | [gl_cv_header_langinfo_codeset], |
| 29 | [AC_COMPILE_IFELSE( |
| 30 | [AC_LANG_PROGRAM([[#include <langinfo.h> |
| 31 | int a = CODESET; |
| 32 | ]])], |
| 33 | [gl_cv_header_langinfo_codeset=yes], |
| 34 | [gl_cv_header_langinfo_codeset=no]) |
| 35 | ]) |
| 36 | if test $gl_cv_header_langinfo_codeset = yes; then |
| 37 | HAVE_LANGINFO_CODESET=1 |
| 38 | fi |
| 39 | AC_CACHE_CHECK([whether langinfo.h defines T_FMT_AMPM], |
| 40 | [gl_cv_header_langinfo_t_fmt_ampm], |
| 41 | [AC_COMPILE_IFELSE( |
| 42 | [AC_LANG_PROGRAM([[#include <langinfo.h> |
| 43 | int a = T_FMT_AMPM; |
| 44 | ]])], |
| 45 | [gl_cv_header_langinfo_t_fmt_ampm=yes], |
| 46 | [gl_cv_header_langinfo_t_fmt_ampm=no]) |
| 47 | ]) |
| 48 | if test $gl_cv_header_langinfo_t_fmt_ampm = yes; then |
| 49 | HAVE_LANGINFO_T_FMT_AMPM=1 |
| 50 | fi |
| 51 | AC_CACHE_CHECK([whether langinfo.h defines ERA], |
| 52 | [gl_cv_header_langinfo_era], |
| 53 | [AC_COMPILE_IFELSE( |
| 54 | [AC_LANG_PROGRAM([[#include <langinfo.h> |
| 55 | int a = ERA; |
| 56 | ]])], |
| 57 | [gl_cv_header_langinfo_era=yes], |
| 58 | [gl_cv_header_langinfo_era=no]) |
| 59 | ]) |
| 60 | if test $gl_cv_header_langinfo_era = yes; then |
| 61 | HAVE_LANGINFO_ERA=1 |
| 62 | fi |
| 63 | AC_CACHE_CHECK([whether langinfo.h defines YESEXPR], |
| 64 | [gl_cv_header_langinfo_yesexpr], |
| 65 | [AC_COMPILE_IFELSE( |
| 66 | [AC_LANG_PROGRAM([[#include <langinfo.h> |
| 67 | int a = YESEXPR; |
| 68 | ]])], |
| 69 | [gl_cv_header_langinfo_yesexpr=yes], |
| 70 | [gl_cv_header_langinfo_yesexpr=no]) |
| 71 | ]) |
| 72 | if test $gl_cv_header_langinfo_yesexpr = yes; then |
| 73 | HAVE_LANGINFO_YESEXPR=1 |
| 74 | fi |
| 75 | else |
| 76 | HAVE_LANGINFO_H=0 |
| 77 | fi |
| 78 | AC_SUBST([HAVE_LANGINFO_H]) |
| 79 | AC_SUBST([HAVE_LANGINFO_CODESET]) |
| 80 | AC_SUBST([HAVE_LANGINFO_T_FMT_AMPM]) |
| 81 | AC_SUBST([HAVE_LANGINFO_ERA]) |
| 82 | AC_SUBST([HAVE_LANGINFO_YESEXPR]) |
| 83 | |
| 84 | dnl Check for declarations of anything we want to poison if the |
| 85 | dnl corresponding gnulib module is not in use. |
| 86 | gl_WARN_ON_USE_PREPARE([[#include <langinfo.h> |
| 87 | ]], [nl_langinfo]) |
| 88 | ]) |
| 89 | |
| 90 | AC_DEFUN([gl_LANGINFO_MODULE_INDICATOR], |
| 91 | [ |
| 92 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. |
| 93 | AC_REQUIRE([gl_LANGINFO_H_DEFAULTS]) |
| 94 | gl_MODULE_INDICATOR_SET_VARIABLE([$1]) |
| 95 | dnl Define it also as a C macro, for the benefit of the unit tests. |
| 96 | gl_MODULE_INDICATOR_FOR_TESTS([$1]) |
| 97 | ]) |
| 98 | |
| 99 | AC_DEFUN([gl_LANGINFO_H_DEFAULTS], |
| 100 | [ |
| 101 | GNULIB_NL_LANGINFO=0; AC_SUBST([GNULIB_NL_LANGINFO]) |
| 102 | dnl Assume proper GNU behavior unless another module says otherwise. |
| 103 | HAVE_NL_LANGINFO=1; AC_SUBST([HAVE_NL_LANGINFO]) |
| 104 | REPLACE_NL_LANGINFO=0; AC_SUBST([REPLACE_NL_LANGINFO]) |
| 105 | ]) |