[Aboriginal] Bugs I need to fix after 1.1.1 is out.

[Rob Landley]

1) Powerpc threading segfaults immediately on application launch.
(Non-threaded stuff seems to work fine.)

2) Sparc threading hangs, and the g++ "hello world" build fails with
an uknown link type.

3) The sh4 board only supports 64 megs of memory, which is totally
inadequate for gcc 3.x or later.  (Builds hello world from the command
line, but a big C file with lots of headers spawned from "make" with the
assembler piping output to the compiler, not so much.)

4) If the network card config fails the CPUS count is still set to 3,
but without distcc the builds don't ge distributed, and boards with only
256 megs of ram can't do -j 3 builds locally without dying (again,
memory exhaustion).  Whether or not this is a separate bug from
"ethernet isn't workign" is debatable, but distcc is brittle enough that
failures should be handled with at least good error messages.

Rob