Version 1.8, add option to select components to install
Optionally, one of the following options can be passed as the first argument to XcodeLegacy.sh, to limit its operation:
-compilers: only install the gcc and llvm-gcc compilers, as well as the corresponding Xcode plugins-osx104: only install Mac OSX 10.4 SDK-osx105: only install Mac OSX 10.5 SDK-osx106: only install Mac OSX 10.6 SDK-osx107: only install Mac OSX 10.7 SDK-osx108: only install OSX 10.8 SDK-osx109: only install OSX 10.9 SDK-osx1010: only install OSX 10.10 SDK