Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] next goal: spade (user goal)
[__0] rejecting: spade-0.1.0.2 (constraint from user target requires
==0.1.0.1)
[__0] trying: spade-0.1.0.1
[__1] next goal: sdl2-mixer (dependency of spade)
[__1] rejecting: sdl2-mixer-1.2.0.0, sdl2-mixer-1.1.0, sdl2-mixer-0.1
(conflict: pkg-config package SDL2_mixer==2.0.0 || >2.0.0, not found in the
pkg-config database)
[__1] fail (backjumping, conflict set: sdl2-mixer, spade)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: sdl2-mixer, spade