Unsupported compiler error when building MacVim

[Tim Johnson]

I'm attempting to install MacVim on a Mac Mini (os = Lion) The build
process is failing. From the log is some of the (hopefully) relevant
error messages:
##################################################################
:info:build Compiler: /Developer/usr/bin/gcc-4.2
:info:build Reason:   /Developer/usr/bin/gcc-4.2 -v -E -dM -arch x86_64 -x c -c /dev/null 2>&1
:info:build === BUILD NATIVE TARGET PSMTabBarControlFramework OF PROJECT PSMTabBarControl WITH THE DEFAULT CONFIGURATION (Release) ===
:info:build Check dependencies
:info:build Unsupported compiler 'GCC 4.2' selected for architecture 'x86_64'
....
##################################################################
How do I resolve this? Is there a way to choose another compiler?
Is there a different variant to use? The failure occurs whether or
not I use any variants.
thanks
-- 
Tim 
tim at tee jay forty nine dot com or akwebsoft dot com
http://www.akwebsoft.com