NixOS/nixpkgs — pull request #3289 by MP2E (2014-07-15 19:22:06+00:00)
Title: SDL_mixer : add option to enable FluidSynth for playing MIDIs with SF2s

This adds the option to play MIDI files with SF2 soundfonts via FluidSynth using an environment variable(SDL_SOUNDFONTS). This is invaluable to retro gamers with MIDI games in their collection. Also a minor bug was fixed concerning enableNativeMidi