[Bug target/81753] Building of cross-compiler for powerpc-darwin7 is broken

[acsawdey at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81753

--- Comment #5 from acsawdey at gcc dot gnu.org ---
Yes please do. The only wrinkle is as segher pointed out to me yesterday, make
sure this only applies to powerpc darwin in config.gcc.