--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/cp/decl.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,51 @@
+/* Variables and structures for declaration processing.
+   Copyright (C) 1993-2017 Free Software Foundation, Inc.
+
+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/>.  */
+
+/* In grokdeclarator, distinguish syntactic contexts of declarators.  */
+enum decl_context
+{ NORMAL,			/* Ordinary declaration */
+  FUNCDEF,			/* Function definition */
+  PARM,				/* Declaration of parm before function body */
+  TPARM,                        /* Declaration of template parm */
+  CATCHPARM,			/* Declaration of catch parm */
+  FIELD,			/* Declaration inside struct or union */
+  BITFIELD,			/* Likewise but with specified width */
+  TYPENAME,			/* Typename (inside cast or sizeof)  */
+  TEMPLATE_TYPE_ARG,		/* Almost the same as TYPENAME  */
+  MEMFUNCDEF			/* Member function definition */
+};
+
+/* We need this in here to get the decl_context definition.  */
+extern tree grokdeclarator (const cp_declarator *,
+			    cp_decl_specifier_seq *,
+			    enum decl_context, int, tree*);
+extern void name_unnamed_type (tree, tree);
+
+/* States indicating how grokdeclarator() should handle declspecs marked
+   with __attribute__((deprecated)).  An object declared as
+   __attribute__((deprecated)) suppresses warnings of uses of other
+   deprecated items.  */
+
+enum deprecated_states {
+  DEPRECATED_NORMAL,
+  DEPRECATED_SUPPRESS
+};
+
+extern enum deprecated_states deprecated_state;
+