is enabled on in base; except for gcc 3.3, which does not have PIE support and
therefore needs to pass -nopie to the linker.
Also, sync powerpc pthread specs with base. From Brad.
ok naddy@
- add some fixes for hppa, though it still isn't ready for prime time yet.
Chances are it will only work with -O1, pending testing. Many optimisations
lead to broken code and segfaults on hppa. Joint work with jsg@.
- fix libstdc++ upgrade path
- bring in recent fixes for execinfo/magic.h from 4.6
ok espie@