I'll see your "Python and Ruby" And raise you to "A windows batch file that calls perl, python, nmake, and gnumake" It's like each person who contributed to the build system just used whatever tool was closest.
I've got a (bash) build script that that uses perl (with lots of regular expressions), python (apparently for no other reason than that the version of perl it started with didn't have `say`), dc (to calculate absolute memory addresses, because python and perl don't have a convenient equivalent of `P`), and runs a windows batch file under wine to build the .exe version with MinGW (although that will print a warning and continue if wine or MinGW is missing or out-of-PATH).
