In gcc/: 2010-09-29 Nicola Pero <nicola.pero@meta-innovation.com>

In gcc/:
2010-09-29  Nicola Pero  <nicola.pero@meta-innovation.com>

        Merge from 'apple/trunk' branch on FSF servers.
        * c-parser.c: Applied change originally in c-parse.in.

        2005-10-04  Fariborz Jahanian <fjahanian@apple.com>

        Radar 4281748
        * c-decl.c (start_decl): Check for redeclaration of class name.
        * c-parse.in (after_type_declarator): Recognize CLASSNAME.

In gcc/c-family/:
2010-09-27  Nicola Pero  <nicola.pero@meta-innovation.com>

        Merge from 'apple/trunk' branch on FSF servers.

        2005-10-04  Fariborz Jahanian <fjahanian@apple.com>

        Radar 4281748
        * c-common.h (objc_check_global_decl): New declaration.
        * stub-objc.c (objc_check_global_decl): New stub.

In gcc/objc/:
2010-09-28  Nicola Pero  <nicola.pero@meta-innovation.com>

        Merge from 'apple/trunk' branch on FSF servers.

        2005-10-04  Fariborz Jahanian <fjahanian@apple.com>

        Radar 4281748
        * objc-act.c (objc_check_global_decl): New

In gcc/testsuite/:
2010-09-28  Nicola Pero  <nicola.pero@meta-innovation.com>

        Merge from 'apple/trunk' branch on FSF servers.

        2005-10-04  Fariborz Jahanian <fjahanian@apple.com>

        Radar 4281748
        * objc.dg/naming-2.m: Update
        * objc.dg/naming-3.m: New

From-SVN: r164735

gcc/ChangeLog

+2010-09-29  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	Merge from 'apple/trunk' branch on FSF servers.
+	* c-parser.c: Applied change originally in c-parse.in.
+	
+	2005-10-04  Fariborz Jahanian <fjahanian@apple.com>
+
+	Radar 4281748
+	* c-decl.c (start_decl): Check for redeclaration of class name.
+	* c-parse.in (after_type_declarator): Recognize CLASSNAME.
+
 2010-09-29  Steve Ellcey  <sje@cup.hp.com>
 
 	* config/ia64/ia64.c (ia64_builtin_decl): New.

gcc/c-decl.c

@@ -4072,6 +4072,11 @@ start_decl (struct c_declarator *declarator, struct c_declspecs *declspecs,
     record_inline_static (input_location, current_function_decl,
 			  decl, csi_modifiable);
 
+  if (c_dialect_objc () 
+      && (TREE_CODE (decl) == VAR_DECL
+          || TREE_CODE (decl) == FUNCTION_DECL))
+      objc_check_global_decl (decl);
+
   /* Add this decl to the current scope.
      TEM may equal DECL or it may be a previous decl of the same name.  */
   tem = pushdecl (decl);

gcc/c-family/ChangeLog

+2010-09-27  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	Merge from 'apple/trunk' branch on FSF servers.	
+	
+	2005-10-04  Fariborz Jahanian <fjahanian@apple.com>
+
+	Radar 4281748
+	* c-common.h (objc_check_global_decl): New declaration.
+	* stub-objc.c (objc_check_global_decl): New stub.
+
 2010-09-29  Joseph Myers  <joseph@codesourcery.com>
 
 	* c.opt: Don't use VarExists.

gcc/c-family/c-common.h

@@ -955,6 +955,7 @@ extern void c_parse_error (const char *, enum cpp_ttype, tree, unsigned char);
 extern tree objc_is_class_name (tree);
 extern tree objc_is_object_ptr (tree);
 extern void objc_check_decl (tree);
+extern void objc_check_global_decl (tree);
 extern tree objc_common_type (tree, tree);
 extern bool objc_compare_types (tree, tree, int, tree);
 extern bool objc_have_common_type (tree, tree, int, tree);

gcc/c-family/stub-objc.c

@@ -56,6 +56,11 @@ objc_check_decl (tree ARG_UNUSED (decl))
 {
 }
 
+void
+objc_check_global_decl (tree ARG_UNUSED (decl))
+{
+}
+
 tree
 objc_common_type (tree ARG_UNUSED (type1), tree ARG_UNUSED (type2))
 {

gcc/c-parser.c

@@ -2560,7 +2560,8 @@ c_parser_direct_declarator (c_parser *parser, bool type_seen_p, c_dtr_syn kind,
   if (kind != C_DTR_ABSTRACT
       && c_parser_next_token_is (parser, CPP_NAME)
       && ((type_seen_p
-	   && c_parser_peek_token (parser)->id_kind == C_ID_TYPENAME)
+	   && (c_parser_peek_token (parser)->id_kind == C_ID_TYPENAME
+	       || c_parser_peek_token (parser)->id_kind == C_ID_CLASSNAME))
 	  || c_parser_peek_token (parser)->id_kind == C_ID_ID))
     {
       struct c_declarator *inner

gcc/objc/ChangeLog

+2010-09-28  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	Merge from 'apple/trunk' branch on FSF servers.
+
+	2005-10-04  Fariborz Jahanian <fjahanian@apple.com>
+
+	Radar 4281748
+	* objc-act.c (objc_check_global_decl): New
+
 2010-09-29  Nicola Pero  <nicola.pero@meta-innovation.com>
 
 	* objc-act.c (objc_is_reserved_word): Removed.

gcc/objc/objc-act.c

@@ -1495,6 +1495,14 @@ objc_check_decl (tree decl)
 	   type);
 }
 
+void
+objc_check_global_decl (tree decl)
+{
+  tree id = DECL_NAME (decl);
+  if (objc_is_class_name (id) && global_bindings_p())
+    error ("redeclaration of Objective-C class %qs", IDENTIFIER_POINTER (id));
+}
+
 /* Construct a PROTOCOLS-qualified variant of INTERFACE, where INTERFACE may
    either name an Objective-C class, or refer to the special 'id' or 'Class'
    types.  If INTERFACE is not a valid ObjC type, just return it unchanged.  */

gcc/testsuite/ChangeLog

+2010-09-28  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	Merge from 'apple/trunk' branch on FSF servers.
+
+	2005-10-04  Fariborz Jahanian <fjahanian@apple.com>
+
+	Radar 4281748
+	* objc.dg/naming-2.m: Update
+	* objc.dg/naming-3.m: New
+
 2010-09-29  Bernd Schmidt  <bernds@codesourcery.com>
 
 	PR target/40457

gcc/testsuite/objc.dg/naming-2.m

@@ -4,7 +4,7 @@
 
 @interface Foo
 @end
-float Foo;  /* { dg-error "parse error|syntax error|expected" } */
+float Foo;  /* { dg-error "parse error|syntax error|expected|redeclaration" } */
 
 double Bar;
 @interface Bar

gcc/testsuite/objc.dg/naming-3.m

+/* Test for class name same as an unrelated struct field name. */
+/* { dg-do compile } */
+@interface PassThrough {
+
+}
+@end
+
+struct S {
+	int (*PassThrough)();
+};
+
+int main()
+{
+	PassThrough* pt;
+	struct S s;
+	s.PassThrough();
+}