[Bug libgcc/123976] GCC 15.2.0 (libgcc) does not build on PPC Mac OS X 10.5.8, Leopard, because of missing "md-unwind-def.h"

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123976

--- Comment #66 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Peter Dyballa from comment #63)
> After reactivating texinfo I used the opportunity to also change LD from the
> system's one to MacPorts ld97 – could the old one have a problem with code
> from unknown modern compilers?

I actually, always do at least one test with the Xcode-3.1.4 tools
(ld64-85-2-1); the linker should be fine for anything other than D (which does
use a newer feature).