via http://www.emucr.com/

Gekko texgen-dev Git (2013/04/07) is compiled. Gekko texgen-dev Git is a branch of Gekko. Gekko is an open source great Gamecube(NGC) emulator. Gekko is an experimental Nintendo GameCube (NGC) emulator started in 2006 by ShizZy and Lightning. It features a very advanced 32-bit dynamic recompiler and its own OpenGL graphics core, and is capable of booting many commercical titles.

Gekko texgen-dev Git Changelog:
* - added TexGen support for normal source row
- cleaned up some VS code to enable more TexGen emulation
* renamed some XF TexGen enums to be nicer
* - general changes to support texgen emulation
- cleaned up some naming of XF registers
- added support for shader generation using XF texgen registers (incorporated into shader hash)
* removed a hack to get dynarec to boot that's no longer needed - this should make the dynarec work with more games

http://www.sendspace.com/file/vu5gfg