[rfc] enabling MALLOC_PRODUCTION on -HEAD for now, until jemalloc has been taught to have some run time selectable debug options

[Adrian Chadd]

Hi,

I'd like to enable MALLOC_PRODUCTION on -HEAD.

I'm currently recompiling my libc on this g4 powerbook because the
-HEAD snapshots don't have it enabled by default; just to get some
damned decent performance out of this thing.

I'll work with Jason and others (eg Ian) who have a vested interest in
trying to get it to run better out of the box, but still have the
debug options available for people who wish to debug things.

Thanks,



Adrian