diff options
Diffstat (limited to 'm4/setlocale.m4')
| -rw-r--r-- | m4/setlocale.m4 | 61 |
1 files changed, 57 insertions, 4 deletions
diff --git a/m4/setlocale.m4 b/m4/setlocale.m4 index e0fb74a..a56bf4e 100644 --- a/m4/setlocale.m4 +++ b/m4/setlocale.m4 @@ -1,5 +1,5 @@ -# setlocale.m4 serial 5 -dnl Copyright (C) 2011-2018 Free Software Foundation, Inc. +# setlocale.m4 serial 7 +dnl Copyright (C) 2011-2020 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, dnl with or without modifications, as long as this notice is preserved. @@ -7,19 +7,72 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_SETLOCALE], [ AC_REQUIRE([gl_LOCALE_H_DEFAULTS]) + AC_REQUIRE([gl_FUNC_SETLOCALE_NULL]) AC_REQUIRE([AC_CANONICAL_HOST]) + + dnl Test whether we need to improve on the general working of setlocale. + NEED_SETLOCALE_IMPROVED=0 case "$host_os" in dnl On native Windows systems, setlocale(category,NULL) does not look at dnl the environment variables LC_ALL, category, and LANG. - mingw*) REPLACE_SETLOCALE=1 ;; + mingw*) NEED_SETLOCALE_IMPROVED=1 ;; dnl On Cygwin 1.5.x, setlocale always succeeds but setlocale(LC_CTYPE,NULL) dnl is then still "C". cygwin*) case `uname -r` in - 1.5.*) REPLACE_SETLOCALE=1 ;; + 1.5.*) NEED_SETLOCALE_IMPROVED=1 ;; + esac + ;; + dnl On Android 4.3, setlocale(category,"C") always fails. + *) + AC_CACHE_CHECK([whether setlocale supports the C locale], + [gl_cv_func_setlocale_works], + [AC_RUN_IFELSE( + [AC_LANG_SOURCE([[ +#include <locale.h> +int main () +{ + return setlocale (LC_ALL, "C") == NULL; +}]])], + [gl_cv_func_setlocale_works=yes], + [gl_cv_func_setlocale_works=no], + [case "$host_os" in + # Guess no on Android. + linux*-android*) gl_cv_func_setlocale_works="guessing no";; + # Guess yes otherwise. + *) gl_cv_func_setlocale_works="guessing yes";; + esac + ]) + ]) + case "$gl_cv_func_setlocale_works" in + *yes) ;; + *) NEED_SETLOCALE_IMPROVED=1 ;; esac ;; esac + AC_DEFINE_UNQUOTED([NEED_SETLOCALE_IMPROVED], [$NEED_SETLOCALE_IMPROVED], + [Define to 1 to enable general improvements of setlocale.]) + + dnl Test whether we need a multithread-safe setlocale(category,NULL). + NEED_SETLOCALE_MTSAFE=0 + if test $SETLOCALE_NULL_ALL_MTSAFE = 0 || test $SETLOCALE_NULL_ONE_MTSAFE = 0; then + NEED_SETLOCALE_MTSAFE=1 + fi + AC_DEFINE_UNQUOTED([NEED_SETLOCALE_MTSAFE], [$NEED_SETLOCALE_MTSAFE], + [Define to 1 to enable a multithread-safety fix of setlocale.]) + + if test $NEED_SETLOCALE_IMPROVED = 1 || test $NEED_SETLOCALE_MTSAFE = 1; then + REPLACE_SETLOCALE=1 + fi + + if test $NEED_SETLOCALE_MTSAFE = 1; then + LIB_SETLOCALE="$LIB_SETLOCALE_NULL" + else + LIB_SETLOCALE= + fi + dnl LIB_SETLOCALE is expected to be '-pthread' or '-lpthread' on AIX with gcc + dnl or xlc, and empty otherwise. + AC_SUBST([LIB_SETLOCALE]) ]) # Prerequisites of lib/setlocale.c. |