Have they fixed the gcc port to AIX in that context?  It was never completely  
ported.  Proof of that can be seen most easily when you try to build and link  
Objective-C code on AIX.

AIX's XCOFF in itself isn't all that bad, there are a bunch of neat things in  
the object format.

On Mon, 27 Jan 1997 22:26:56 -0500 (EST), briggs@puma.macbsd.com wrote:
> NetBSD/powerpc won't boot on a PCI powermac (at least the earlier
> ones--haven't seen a current one) because the Apple OpenFirmware isn't
> quite compliant...  ELF files won't load--the only binary formats that
> it supports are AIX's XCOFF (only ZMAGIC--not NMAGIC or OMAGIC (ugh))
> and Forth or FCode.  I'm currently struggling with the binutils package
> to get the ppc bootblocks into an Apple-OpenFirmware-bootable format.
> I've run across a few problems...  (like ld core dumping with a seg
> fault if I try to specify --oformat aixcoff-rs6000 and objcopy/objdump
> not working).