Project:
Wine
Code Location:

git://source.winehq.org/git/wine.gitmaster

Ohloh Project Analysis
Wine is an implementation of the Windows API on top of X and Unix. It does not require Microsoft Windows, but can use native Windows DLLs if they are available. It provides both a development toolkit for porting Windows source code to Unix as well as a program loader, allowing many unmodified Windows programs to run on x86 and x86_64 based Unixes.