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Re: [bug #4189] broken bycopy in DO


From: Richard Frith-Macdonald
Subject: Re: [bug #4189] broken bycopy in DO
Date: Fri, 4 Jul 2003 14:00:28 +0100


On Friday, July 4, 2003, at 01:42  pm, Alexander Malmberg wrote:

Richard Frith-Macdonald wrote:
[snip]
I have a machine with gcc-3.0 ... I'll have a look at it on that to try
to
figure out what's going on.

In 3.0.4, gcc/libobjc/Protocol.m, line 109, class_methods may be NULL.
Can be worked around with a Protocol category with a fixed
implementation

I already put that in NSObject.m this morning.

(although later gcc versions seem to have fixed it by
guaranteeing that class_methods will never be NULL).

I don't think so ... I'm using gcc-3.4 and I'm fairly sure that still happens.

However, there also seem to be serious problems in the handling of
@protocol(), and I'm not sure that can be worked around. Nicola fixed
those problems in gcc, so he can probably tell you more.

Now that might be a real issue ... I have no idea what problems might be
with it and how to produce them though.  I'll ask Nicola.





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