re PR c++/12479 ([3.4 only] System header should not cause -pedantic to error about "extra `;'")

	PR c++/12479
	* parser.c (cp_parser_declaration_seq_opt): Only issue "extra ;"
	pedwarn when not in a system header.

	PR c++/12479
	* g++.dg/parse/semicolon1.C: New test.
	* g++.dg/parse/semicolon1.h: Likewise.

From-SVN: r74940

gcc/cp/ChangeLog

+2003-12-22  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/12479
+	* parser.c (cp_parser_declaration_seq_opt): Only issue "extra ;"
+	pedwarn when not in a system header.
+
 2003-12-21  Mark Mitchell  <mark@codesourcery.com>
 
 	* cp-tree.h (cp_tree_index): Remove CPTI_RECORD_TYPE,

gcc/cp/parser.c

@@ -6128,7 +6128,7 @@ cp_parser_declaration_seq_opt (cp_parser* parser)
 	{
 	  /* A declaration consisting of a single semicolon is
 	     invalid.  Allow it unless we're being pedantic.  */
-	  if (pedantic)
+	  if (pedantic && !in_system_header)
 	    pedwarn ("extra `;'");
 	  cp_lexer_consume_token (parser->lexer);
 	  continue;

gcc/testsuite/ChangeLog

+2003-12-22  Mark Mitchell  <mark@codesourcery.com>
+
+	PR c++/12479
+	* g++.dg/parse/semicolon1.C: New test.
+	* g++.dg/parse/semicolon1.h: Likewise.
+
 2003-12-22  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	PR c/9163

gcc/testsuite/g++.dg/parse/semicolon1.C

+// PR c++/12479
+// { dg-options "-pedantic" }
+
+#include "semicolon1.h"

gcc/testsuite/g++.dg/parse/semicolon1.h

+#pragma GCC system_header
+;