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# iswpunct.m4 serial 2
dnl Copyright (C) 2023-2024 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([gl_FUNC_ISWPUNCT],
[
AC_REQUIRE([gl_WCTYPE_H_DEFAULTS])
AC_REQUIRE([gl_WCTYPE_H])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
if test $HAVE_ISWCNTRL = 0 || test $REPLACE_ISWCNTRL = 1; then
dnl <wctype.h> redefines iswpunct already.
REPLACE_ISWPUNCT="$REPLACE_ISWCNTRL"
else
AC_CACHE_CHECK([whether iswpunct is consistent with ispunct],
[gl_cv_func_iswpunct_works],
[AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <ctype.h>
#include <wchar.h>
#include <wctype.h>
int
main (int argc, char *argv[])
{
int result = 0;
/* This fails on Android 11. */
if ((! iswpunct ('\`')) != (! ispunct ('\`')))
result |= 1;
return result;
}]])],
[gl_cv_func_iswpunct_works=yes],
[gl_cv_func_iswpunct_works=no],
[case "$host_os" in
# Guess no on Android.
android*) gl_cv_func_iswpunct_works="guessing no" ;;
# Guess yes otherwise.
*) gl_cv_func_iswpunct_works="guessing yes" ;;
esac
])
])
case "$gl_cv_func_iswpunct_works" in
*yes) ;;
*) REPLACE_ISWPUNCT=1 ;;
esac
fi
])
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