--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/c-errors.c	Fri Jul 17 14:47:48 2009 +0900
@@ -0,0 +1,64 @@
+/* Various diagnostic subroutines for the GNU C language.
+   Copyright (C) 2000, 2001, 2003, 2007, 2008 Free Software Foundation, Inc.
+   Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "tree.h"
+#include "c-tree.h"
+#include "tm_p.h"
+#include "flags.h"
+#include "diagnostic.h"
+
+/* Issue an ISO C99 pedantic warning MSGID.  */
+
+void
+pedwarn_c99 (location_t location, int opt, const char *gmsgid, ...)
+{
+  diagnostic_info diagnostic;
+  va_list ap;
+
+  va_start (ap, gmsgid);
+  diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
+		       flag_isoc99 ? DK_PEDWARN : DK_WARNING);
+  diagnostic.option_index = opt;
+  report_diagnostic (&diagnostic);
+  va_end (ap);
+}
+
+/* Issue an ISO C90 pedantic warning MSGID.  This function is supposed to
+   be used for matters that are allowed in ISO C99 but not supported in
+   ISO C90, thus we explicitly don't pedwarn when C99 is specified.
+   (There is no flag_c90.)  */
+
+void
+pedwarn_c90 (location_t location, int opt, const char *gmsgid, ...)
+{
+  diagnostic_info diagnostic;
+  va_list ap;
+
+  va_start (ap, gmsgid);
+  diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
+		       flag_isoc99 ? DK_WARNING : DK_PEDWARN);
+  diagnostic.option_index = opt;
+  report_diagnostic (&diagnostic);
+  va_end (ap);
+}