title: How to set custom gcc options when compiling with MacRuby?
body: <p>I'm trying to compile a simple ruby script to an executable with MacRuby. The issue I'm having is that the executable compiled on Mac OS 10.8.3 doesn't work on 10.7.x (I get an <code>Illegal instruction: 4</code> error). It seems that I have to pass an option to gcc, -mmacosx-version-min=10.6 in order for the executable to be compatible with older systems, but I can't figure out how to do so. Any help is appreciated.</p>