XXX: sun2 seems to be currently generally busted but most of the world
builds. of course it is untested..
XXX: sh3* and -pg goes BOOM with gcc3.3... it generates code that uses
the same labels twice... need to set NOPROFILE for now.
- clean up commented & wrong rules
- find the right bits/ headers for sparc64 & arm
- make sure libsupc++/libstdc++ have all the symbols from libiberty they want
- disable the build of libstdc++ for now (but keep the includes installing)
works. sparc & i386 support is included here. libstdc++-v3 does not yet
properly build for some strange reasons (that may be due to broken netbsd
header files, it's not yet clear) but i have been able to compile, link and
run both i386 & sparc hello.c.