[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"

[Peter_Dyballa at web dot de]

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

--- Comment #63 from Peter Dyballa <Peter_Dyballa at web dot de> ---
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?