another libobjc patch

[Jeremy Bettis]

Here is a patch that for GCC < 3.3 (where I am told this problem is fixed).

The situation is that a Protocol is only initialized if it is used in a
class.  For example: (all in one file)

@Protocol A
@end

@Protocol B
@end

@interface C : Object <A>
@end

@implementation C
- (id) init
{
    [super init];
    // This one will work
    printf("Protocol A is %s\n", address@hidden(A) name]);
    // This one will crash
    printf("Protocol B is %s\n", address@hidden(B) name]);
    return self;
}
@end

My dirty rotten hack is that if the class_pointer is equal to 2
(PROTOCOL_VERSION), then I assume that the object is actually an
uninitialized Protocol object and I set the class_pointer to the Protocol
class.

If you can't accept this patch please let me know how I can make it
acceptable.  I really want this to go into the CVS dev-libs/libobjc.

-Jeremy

patch20030729-2.txt
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