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-rw-r--r--m4/iswpunct.m448
1 files changed, 48 insertions, 0 deletions
diff --git a/m4/iswpunct.m4 b/m4/iswpunct.m4
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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
+])