Gambatte is a Nintendo Game Boy/Game Boy Color video game system
emulator that can be used as a libretro core.

Gambatte is an accuracy-focused, open-source, cross-platform Game
Boy Color emulator written in C++. It is based on hundreds of corner
case hardware tests, as well as previous documentation and reverse
engineering efforts.

To build the debugging symbols use:
  DEBUG=1 ./gambatte-libretro.SlackBuild