diff options
Diffstat (limited to 'gnulib-m4/wctob.m4')
| -rw-r--r-- | gnulib-m4/wctob.m4 | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/gnulib-m4/wctob.m4 b/gnulib-m4/wctob.m4 index 39270c9d..3af3cc7b 100644 --- a/gnulib-m4/wctob.m4 +++ b/gnulib-m4/wctob.m4 @@ -1,5 +1,5 @@ -# wctob.m4 serial 4 -dnl Copyright (C) 2008-2009 Free Software Foundation, Inc. +# wctob.m4 serial 5 +dnl Copyright (C) 2008-2010 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. @@ -17,6 +17,8 @@ AC_DEFUN([gl_FUNC_WCTOB], else dnl Solaris 9 has the wctob() function but it does not work. + dnl Cygwin 1.7.2 has the wctob() function but it clobbers caller-owned + dnl registers, see <http://cygwin.com/ml/cygwin/2010-05/msg00015.html>. AC_REQUIRE([AC_PROG_CC]) AC_REQUIRE([gt_LOCALE_FR]) AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles @@ -27,14 +29,35 @@ AC_DEFUN([gl_FUNC_WCTOB], dnl is present. changequote(,)dnl case "$host_os" in - # Guess no on Solaris <= 9. - solaris2.[1-9] | solaris2.[1-9].*) + # Guess no on Solaris <= 9 and Cygwin. + solaris2.[1-9] | solaris2.[1-9].* | cygwin*) gl_cv_func_wctob_works="guessing no" ;; # Guess yes otherwise. *) gl_cv_func_wctob_works="guessing yes" ;; esac changequote([,])dnl - if test $LOCALE_FR != none; then + case "$host_os" in + cygwin*) + AC_TRY_RUN([ +#include <locale.h> +#include <wchar.h> + +register long global __asm__ ("%ebx"); + +int main () +{ + setlocale (LC_ALL, "en_US.UTF-8"); + + global = 0x12345678; + if (wctob (0x00FC) != -1) + return 1; + if (global != 0x12345678) + return 2; + return 0; +}], [:], [gl_cv_func_wctob_works=no], [:]) + ;; + esac + if test "$gl_cv_func_wctob_works" != no && test $LOCALE_FR != none; then AC_TRY_RUN([ #include <locale.h> #include <string.h> |