0.5:
- fixed: help clang to find its own intrinsic headers (this issue appears to be fixed in clang 3.4+)

0.4:
- added: gcc support
- added: a workaround for buggish unistd.h headers, no more need to edit /usr/include/unistd.h

0.3:
- added: SDK download links to README
- added: support 10.9 (Mavericks) SDK
- added: *-apple-darwin*-clang* symlinks (same as invoking o32-clang or o64-clang++)
- changed: no need to build extra cctools binaries for targeting i386, symlinking the x86_64 builds works as well

0.2:
- changed: update cctools to 839 with ld64-134.9
- added: check for broken unistd.h
- fixed: check if MacOSX package is present in tarballs
- added: comments in build.sh

0.1: -