to highlight some changes:
- this gets rid of the bash dependency (after installing)
- osxcross-env, osxcross-conf and (the fake) dsymutil are now implemented
in the wrapper
- added: 'sw_vers' tool, which is required by some projects (llvm, ...)
- added '-oc-use-gcc-libs' option (uses './build_gcc.sh' libstdc++)
This new wrapper is also more restrict and several times faster than the bash
implementation (~0.2ms vs. 10ms+).
update README with libc++ build instructions and samples
fix mavericks SDK download link (pointed to 10.8)
build xar only for <=10.5
add -g0 to the clang invocation command to avoid dsymutil from being run (debugging is not supported, but I guess you don't want to debug the resulting binaries anyway if you build them on a non OS X system)
attempt to make the toolchain less path dependent (gcc still breaks though, because of hardcoded paths), but clang and cctools can be moved now
update cctools to 845
add DISABLE_LTO_SUPPORT option (DISABLE_LTO_SUPPORT=1 ./build.sh) to disable linking against libLTO.so
add support for 32 bit systems
add FreeBSD support
update PACKAGE script
