- Need to address architectures other than NetBSD with native pthreads.

- Requires fix to lang/gcc3-ada PR pkg/24573 to build from gcc3-ada. As part 
  of this fix, a buildlink3.mk file was provided for lang/gcc3-ada 
  It will build from wip/gcc-3.4-ada

- Need to define baseline_symbols.txt for libstdc++-v3/config/abi/${ARCH}

- Currently, there are 147 unexpected failures encountered in the testsuite for
  libstdc++-v3