gccgo branch and darwin

[Ian Lance Taylor]

Jack Howarth <howarth@bromo.med.uc.edu> writes:

>    Actually, darwin doesn't use the boehm-gc/pthread_stop_world.c containing
> the SIGRTMIN code. There is an entirely separate boehm-gc/darwin_stop_world.c
> for the thread handling on darwin. While boehm-gc/pthread_stop_world.c is
> compiled on darwin, the code in it is skipped because of the...

You probably know this, but to be pedantically clear, the garbage
collector in libgo doesn't use boehm-gc.  It's entirely separate code.

Clearly the boehm-gc Darwin support would be a good starting point for
libgo Darwin support, though.

Ian