fceumm libretro-fceuumm  https://github.com/libretro/libretro-fceumm.git master PROJECT YES GENERIC Makefile.libretro . 
gambatte libretro-gambatte https://github.com/libretro/gambatte-libretro.git master PROJECT YES GENERIC Makefile . 
nestopia libretro-nestopia https://github.com/libretro/nestopia.git master PROJECT YES GENERIC Makefile libretro 
snes9x libretro-snes9x https://github.com/libretro/snes9x.git master PROJECT YES GENERIC Makefile libretro 
vbam libretro-vbam https://github.com/libretro/vbam-libretro.git master PROJECT YES GENERIC Makefile src/libretro