Comment 6 for bug 1264880

This issue is due new COMPILER, (LLVM, code was written for GCC).
That switch enables you to use:
More Platforms (that doesn't interests you in this case)
Switch C++ STL from LLVM to GNU (the issue in this case)

You will not loose any feature ;)

For more informations:
http://stackoverflow.com/questions/2923502/what-does-macosx-version-min-imply