Sorry to say, but if you wanted to create a totally seperate version of GCC under OSX, currently you can't do it.
http://gcc.gnu.org/ml/gcc/2000-10/msg00079.html
Gotta stick with what Apple gives us for now.
http://gcc.gnu.org/ml/gcc/2000-10/msg00079.html
Gotta stick with what Apple gives us for now.