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