Then compile it with llvm (if you absolutely must have GCC specifically), llvm is the new default compiler in Xcode. The link above has binaries both for clang

Then compile it with llvm (if you absolutely must have GCC specifically), llvm is the new default compiler in Xcode. The link above has binaries both for clang and the GCC front end. GCC is still the default compiler; Clang is still immature.