Re: Building gnuStep on panther

[David Ayers]

Bill Northcott wrote:
> > From: Matthew Weinstein <mweinste@kent.edu>
> > Subject: Building gnuStep on panther
>
> > Still trying to build on panther. The good news, after playing a lot
> > with LD_LIBRARY_PATH (and friends), foundation is built. Gui is
> > anothe problem. I'm building from cvs. Here are make's final words
> Stuff removed.
>
> >   Linking library libgnustep-gui ...
> > ld: for architecture ppc
> > ld: warning undefined symbols:
> > ___objc_exec_class
> > _objc_get_class
> > _objc_msg_lookup
> > _objc_msg_lookup_super
> > ___objc_class_name_Protocol
> > _objc_free
>
> etc.
>
> The problem here is that you are linking the wrong Objective-C runtime 
> library.

Well not necessarily, but yes.  In fact the problem is that, no one has 
gone through -gui and -back yet to add:

#include <GNUstepBase/GSObjCRuntime.h>

where necessary which includes further headers that will do the mapping 
from GNU runtime functions to Apple's runtime.  But note that there 
isn't always a (useful) mapping available.  When that's the case we try 
to provide a GS(ObjC)SomeThingFunction in GSObjCRuntime.h to abstract 
that difference.

I'm not too involved with -gui but I just put this at the end of my TODO 
list.  I'd be very glad if someone else could look into this as I cannot 
say that I'll be able to deal with this any time soon.

Cheers,
David