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# wctype.m4 serial 6
dnl Copyright (C) 2011-2024 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_ONCE([gl_FUNC_WCTYPE],
[
AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
AC_REQUIRE([gl_WCTYPE_H])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
HAVE_WCTYPE=$HAVE_WCTYPE_T
if test $HAVE_WCTYPE = 1; then
AC_CACHE_CHECK([whether wctype supports the "blank" and "punct" character classes],
[gl_cv_func_wctype_works],
[AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <ctype.h>
#include <wchar.h>
#include <wctype.h>
int main ()
{
/* This test fails on mingw. */
if (wctype ("blank") == (wctype_t)0)
return 1;
/* This test fails on MSVC 14. */
if ((! iswctype ('\t', wctype ("blank"))) != (! iswblank ('\t')))
return 2;
/* This test fails on Android 11. */
if ((! iswctype ('\`', wctype ("punct"))) != (! ispunct ('\`')))
return 4;
return 0;
}
]])],
[gl_cv_func_wctype_works=yes], [gl_cv_func_wctype_works=no],
[case "$host_os" in
# Guess no on native Windows.
mingw* | windows*) gl_cv_func_wctype_works="guessing no" ;;
# Guess no on Android.
android*) gl_cv_func_wctype_works="guessing no" ;;
# Guess yes otherwise.
*) gl_cv_func_wctype_works="guessing yes" ;;
esac
])
])
case "$gl_cv_func_wctype_works" in
*yes) ;;
*) REPLACE_WCTYPE=1 ;;
esac
fi
])
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