I have just completed the xcode install, mac osx lion. Upon completion I attempted to install PIL in a virtual enviroment using pip, easy_install and home brew. All three are er
If it helps any, I solved this pesky issue with sym links, and I think it will work for you. I wrote this with my version of gcc in mind, which is 4.2:
cd /usr/bin
rm cc gcc c++ g++
ln -s gcc-4.2 cc
ln -s gcc-4.2 gcc
ln -s c++-4.2 c++
ln -s g++-4.2 g++
ln -s gcc-4.2 gcc-4.0