+# wctype.m4 serial 4
+
dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
-dnl Copyright (C) 2006-2008 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2009 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.
AC_DEFUN([gl_WCTYPE_H],
[
AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST])
AC_CHECK_FUNCS_ONCE([iswcntrl])
if test $ac_cv_func_iswcntrl = yes; then
HAVE_ISWCNTRL=1
dnl The other functions are likely broken in the same way.
AC_CACHE_CHECK([whether iswcntrl works], [gl_cv_func_iswcntrl_works],
[
- AC_TRY_RUN([#include <stddef.h>
- #include <stdio.h>
- #include <time.h>
- #include <wchar.h>
- #include <wctype.h>
- int main () { return iswprint ('x') == 0; }],
- [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no])
- ],
- [
- AC_TRY_COMPILE([#include <stdlib.h>
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[
+ #include <stddef.h>
+ #include <stdio.h>
+ #include <time.h>
+ #include <wchar.h>
+ #include <wctype.h>
+ int main () { return iswprint ('x') == 0; }]])],
+ [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
+ [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
#if __GNU_LIBRARY__ == 1
Linux libc5 i18n is broken.
- #endif],
- [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no])
+ #endif]], [])],
+ [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no])
+ ])
])
if test $gl_cv_func_iswcntrl_works = yes; then
- WCTYPE_H=
+ case "$host_os" in
+ mingw*)
+ dnl On mingw, towlower and towupper return random high 16 bits.
+ ;;
+ *)
+ dnl iswcntrl works. towlower and towupper work as well.
+ WCTYPE_H=
+ ;;
+ esac
fi
fi
dnl Compute NEXT_WCTYPE_H even if WCTYPE_H is empty,