-# iswblank.m4 serial 2
-dnl Copyright (C) 2011 Free Software Foundation, Inc.
+# iswblank.m4 serial 4
+dnl Copyright (C) 2011-2015 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.
dnl Persuade glibc <wctype.h> to declare iswblank().
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_CHECK_FUNCS_ONCE([iswblank])
- AC_CHECK_DECLS_ONCE([iswblank])
+ AC_CHECK_DECLS([iswblank], , , [[
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+ <wchar.h>.
+ BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be included
+ before <wchar.h>. */
+#include <stddef.h>
+#include <stdio.h>
+#include <time.h>
+#include <wchar.h>
+#include <wctype.h>
+]])
if test $ac_cv_func_iswblank = no; then
HAVE_ISWBLANK=0
if test $ac_cv_have_decl_iswblank = yes; then
else
if test $HAVE_ISWBLANK = 0 || test $REPLACE_ISWBLANK = 1; then
dnl Redefine only iswblank.
- AC_LIBOBJ([iswblank])
+ :
fi
fi