Patches for gltron on Minerva

`0001-Build-Remove-ansi-build-argument.patch`

Build: Remove -ansi build argument

Build: Fix char* vs. const char* arguments

These arguments are of the wrong constness, which will trip our compiler.

System: Make sure to exit the loop on receiving SDL_QUIT

This is fixed in more modern adaptations, as can be seen here:

Since we work with the original source material, we better patch this ourselves.