as part of the configure options. A pth with this option enabled provides
some semblance of pre-emptive threads - enough for things like xmms and
knode to actually work.
Add the necessary glue to pthread.buildlink.mk and appropriate CONFLICT
into pth.
It is hoped that the pkgs that currently use
-D_POSIX_THREAD_SYSCALL_SOFT=1
will be tested against pth-syscall and changed to use it. The goal is to
be able to add --enable-syscall-hard to devel/pth and retire pth-syscall.
Baby steps...
