| 1 | # setlocale.m4 serial 7
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| 2 | dnl Copyright (C) 2011-2021 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_SETLOCALE],
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| 8 | [
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| 9 | AC_REQUIRE([gl_LOCALE_H_DEFAULTS])
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| 10 | AC_REQUIRE([gl_FUNC_SETLOCALE_NULL])
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| 11 | AC_REQUIRE([AC_CANONICAL_HOST])
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| 12 |
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| 13 | dnl Test whether we need to improve on the general working of setlocale.
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| 14 | NEED_SETLOCALE_IMPROVED=0
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| 15 | case "$host_os" in
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| 16 | dnl On native Windows systems, setlocale(category,NULL) does not look at
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| 17 | dnl the environment variables LC_ALL, category, and LANG.
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| 18 | mingw*) NEED_SETLOCALE_IMPROVED=1 ;;
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| 19 | dnl On Cygwin 1.5.x, setlocale always succeeds but setlocale(LC_CTYPE,NULL)
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| 20 | dnl is then still "C".
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| 21 | cygwin*)
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| 22 | case `uname -r` in
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| 23 | 1.5.*) NEED_SETLOCALE_IMPROVED=1 ;;
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| 24 | esac
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| 25 | ;;
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| 26 | dnl On Android 4.3, setlocale(category,"C") always fails.
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| 27 | *)
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| 28 | AC_CACHE_CHECK([whether setlocale supports the C locale],
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| 29 | [gl_cv_func_setlocale_works],
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| 30 | [AC_RUN_IFELSE(
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| 31 | [AC_LANG_SOURCE([[
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| 32 | #include <locale.h>
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| 33 | int main ()
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| 34 | {
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| 35 | return setlocale (LC_ALL, "C") == NULL;
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| 36 | }]])],
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| 37 | [gl_cv_func_setlocale_works=yes],
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| 38 | [gl_cv_func_setlocale_works=no],
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| 39 | [case "$host_os" in
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| 40 | # Guess no on Android.
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| 41 | linux*-android*) gl_cv_func_setlocale_works="guessing no";;
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| 42 | # Guess yes otherwise.
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| 43 | *) gl_cv_func_setlocale_works="guessing yes";;
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| 44 | esac
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| 45 | ])
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| 46 | ])
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| 47 | case "$gl_cv_func_setlocale_works" in
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| 48 | *yes) ;;
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| 49 | *) NEED_SETLOCALE_IMPROVED=1 ;;
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| 50 | esac
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| 51 | ;;
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| 52 | esac
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| 53 | AC_DEFINE_UNQUOTED([NEED_SETLOCALE_IMPROVED], [$NEED_SETLOCALE_IMPROVED],
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| 54 | [Define to 1 to enable general improvements of setlocale.])
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| 55 |
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| 56 | dnl Test whether we need a multithread-safe setlocale(category,NULL).
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| 57 | NEED_SETLOCALE_MTSAFE=0
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| 58 | if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then
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| 59 | NEED_SETLOCALE_MTSAFE=1
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| 60 | fi
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| 61 | AC_DEFINE_UNQUOTED([NEED_SETLOCALE_MTSAFE], [$NEED_SETLOCALE_MTSAFE],
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| 62 | [Define to 1 to enable a multithread-safety fix of setlocale.])
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| 63 |
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| 64 | if test $NEED_SETLOCALE_IMPROVED = 1 || test $NEED_SETLOCALE_MTSAFE = 1; then
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| 65 | REPLACE_SETLOCALE=1
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| 66 | fi
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| 67 |
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| 68 | if test $NEED_SETLOCALE_MTSAFE = 1; then
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| 69 | LIB_SETLOCALE="$LIB_SETLOCALE_NULL"
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| 70 | else
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| 71 | LIB_SETLOCALE=
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| 72 | fi
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| 73 | dnl LIB_SETLOCALE is expected to be '-pthread' or '-lpthread' on AIX with gcc
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| 74 | dnl or xlc, and empty otherwise.
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| 75 | AC_SUBST([LIB_SETLOCALE])
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| 76 | ])
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| 77 |
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| 78 | # Prerequisites of lib/setlocale.c.
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| 79 | AC_DEFUN([gl_PREREQ_SETLOCALE],
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| 80 | [
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| 81 | dnl No need to check for CFLocaleCopyPreferredLanguages and
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| 82 | dnl CFPreferencesCopyAppValue because lib/setlocale.c is not used on Mac OS X.
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| 83 | dnl (The Mac OS X specific code is only used in libintl.)
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| 84 | :
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| 85 | ])
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