In gcc/:
2010-12-10  Nicola Pero  <nicola.pero@meta-innovation.com>

	* c-parser.c (c_parser_objc_class_definition): Recognize
	Objective-C 2.0 class extensions.

In gcc/cp/:
2010-12-10  Nicola Pero  <nicola.pero@meta-innovation.com>

	* parser.c (cp_parser_objc_superclass_or_category): Recognize
	Objective-C 2.0 class extensions.  Added iface_p and
	is_class_extension arguments.
	(cp_parser_objc_class_interface): Updated call to
	cp_parser_objc_superclass_or_category.
	(cp_parser_objc_class_implementation): Same change.
	
In gcc/objc/:
2010-12-10  Nicola Pero  <nicola.pero@meta-innovation.com>

	* objc-act.c (objc_in_class_extension): New.
	(objc_start_category_interface): If -fobjc-std=objc1
	was specified, produce an error if a class extension is used.
	(objc_finish_interface): Reset objc_in_class_extension to false.
	(objc_add_property_declaration): Allow a class extension to extend
	readonly properties in the main @interface to be readwrite.
	(start_class): Added code to deal with class extensions.  In that
	case, return the existing interface after adding any additional
	protocols to it and setting objc_in_class_extension to true.
	(continue_class): If in a class extension, do not generate the
	instance variable template.

In gcc/testsuite/:
2010-12-10  Nicola Pero  <nicola.pero@meta-innovation.com>

	* objc.dg/class-extension-1.m: New.
	* objc.dg/class-extension-2.m: New.
	* objc.dg/class-extension-3.m: New.
	* objc.dg/property/at-property-26.m: New.
	* objc.dg/property/at-property-27.m: New.
	* objc.dg/property/at-property-28.m: New.
	* obj-c++.dg/class-extension-1.mm: New.
	* obj-c++.dg/class-extension-2.mm: New.
	* obj-c++.dg/class-extension-3.mm: New.
	* obj-c++.dg/property/at-property-26.mm: New.
	* obj-c++.dg/property/at-property-27.mm: New.
	* obj-c++.dg/property/at-property-28.mm: New.

From-SVN: r167680