As you can see by the lateral moonbase tracker, gcc and glibc have been updated. Gcc 4.0.X is still not an option, as it needs some quite heavy patching for now.
Welcome to the official Lunar Linux website! Lunar is a source-based distribution for 32 and 64bit Intel or AMD systems with simple, yet powerful package management and system administration tools. If you want a flexible system built from source that is easy to install and maintain, you should try Lunar!