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Hello,

> >> What does that patch do? And should it be in the official source
> >> tree?
> >  Longer story. There's no (easy) way to access PCI IO space
> >from userland on macppc, mainly because there can be more than one
> >PCI host bridge and each maps its IO space somewhere else. Most XFree
> >drivers can work using only memory-mapped IO but some can't - tdfx is
> >one of these.
> 
> I see. Have you ever submitted a PR (in category port-macppc) about this?
I /think/ I did, but I'm not sure. I certainly raised the topic on tech-x11 and port-macppc.

btw. I've found a funny problem in freetype2. When compiled with optimisations enabled this code in xsrc/xfree/xc/extras/freetype2/base/ftobjs.c:
     if ( service && service->name_index ) 
       result = service->name_index( face, glyph_name );
causes a SIGILL. According to gdb it jumps into the structure pointed at by services, not the function pointer in service->name_index. This happens on both sparc64 and macppc. Workaround: compile without optimisation. A weird side-effect - when I add a printf() right before service->name_index( ) gets called  (and proper {} around it of course ) it doesn't coredump either.
The easiest way to trigger it is to run mkfontscale in xc/fonts/Type1.
So I guess that's a bug in gcc.

have fun
Michael

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