Added missing file.

Protocol2.m

@@ -0,0 +1,36 @@
+#include "objc/runtime.h"
+#include "protocol.h"
+#include "class.h"
+#include <stdio.h>
+#include <string.h>
+
+@implementation Protocol2 
++ (void)load
+{
+	objc_clear_class_flag(self, objc_class_flag_plane_aware);
+}
+@end
+@implementation Protocol
++ (void)load
+{
+	objc_clear_class_flag(self, objc_class_flag_plane_aware);
+}
+// FIXME: This needs removing, but it's included for now because GNUstep's
+// implementation of +[NSObject conformsToProtocol:] calls it.
+- (BOOL)conformsTo: (Protocol*)p
+{
+	return protocol_conformsToProtocol(self, p);
+}
+@end
+
+/**
+ * This class exists for the sole reason that the legacy GNU ABI did not
+ * provide a way of registering protocols with the runtime.  With the new ABI,
+ * every protocol in a compilation unit that is not referenced should be added
+ * in a category on this class.  This ensures that the runtime sees every
+ * protocol at least once and can perform uniquing.
+ */
+@interface __ObjC_Protocol_Holder_Ugly_Hack { id isa; } @end
+@implementation __ObjC_Protocol_Holder_Ugly_Hack @end
+
+@implementation Object @end

protocol.h

@@ -15,20 +15,22 @@ struct objc_method_description_list
 	struct objc_selector methods[1];
 };
 
+
+#ifdef __OBJC__
+@interface Object { id isa; } @end
 /**
  * Definition of the Protocol type.  Protocols are objects, but are rarely used
  * as such.
  */
-#ifdef __OBJC__
-@interface Protocol
+@interface Protocol : Object
 {
 	@public
 #else
 struct objc_protocol
 {
-#endif 
 	/** Class pointer. */
 	id                                   isa;
+#endif 
 	/** 
 	 * The name of this protocol.  Two protocols are regarded as identical if
 	 * they have the same name.