* Remove objc/Protocol.h include from NSObject to avoid warnings

with conflicting method signatures.
* Headers/Foundation/NSConnection.h: Change Object categories
to NSObject.
* Source/NSConnection.m: Idem.
* Headers/Foundation/NSObject.h: Don't include objc/Protocol.h
add a few missing things.
* Source/NSDate.m ([NSDate -isEqual:]): Use isKindOfClass.
* Source/NSDistantObject.m, Source/NSProtocolChecker.m:
Include objc/Protocol.h
* Source/NSSerializer.m: Add method sig for performv::


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@21322 72102866-910b-0410-8b05-ffd578937521

Source/NSConnection.m

@@ -3592,7 +3592,7 @@ static void callEncoder (DOContext *ctxt)
  * delegates may conform ...  implementing these methods has the effect
  * documented.
  */
-@implementation Object (NSConnectionDelegate)
+@implementation NSObject (NSConnectionDelegate)
 /**
  * <p>
  *   This is not an NSConnection method, but is a method that may

Source/NSDate.m

@@ -1334,7 +1334,7 @@ GSTimeNow(void)
 {
   if (other == nil)
     return NO;
-  if ([other isKindOf: abstractClass]
+  if ([other isKindOfClass: abstractClass]
     && 1.0 > ABS(otherTime(self) - otherTime(other)))
     return YES;
   return NO;

Source/NSDistantObject.m

@@ -36,6 +36,7 @@
 #include "Foundation/NSException.h"
 #include "Foundation/NSObjCRuntime.h"
 #include "Foundation/NSInvocation.h"
+#include <objc/Protocol.h>
 
 #define DO_FORWARD_INVOCATION(_SELX, _ARG1) ({			\
   sig = [self methodSignatureForSelector: @selector(_SELX)];	\

Source/NSProtocolChecker.m

@@ -32,6 +32,7 @@
 #include "Foundation/NSException.h"
 #include "Foundation/NSInvocation.h"
 #include "Foundation/NSMethodSignature.h"
+#include <objc/Protocol.h>
 
 /**
  * The NSProtocolChecker and NSProxy classes provide message filtering and

Source/NSSerializer.m

@@ -142,6 +142,11 @@ static SEL	lenSel;
 static SEL	serSel;
 static SEL	setSel;
 
+/* Compatibility methods from NEXTSTEP (Implemented in NSObject) */
+@interface NSObject (Serializer)
+- (retval_t) performv: (SEL)aSel :(arglist_t)argFrame;
+@end
+
 static void
 initSerializerInfo(_NSSerializerInfo* info, NSMutableData *d, BOOL u)
 {