[shlomif@localhost renderer]$ git log -p | less
[shlomif@localhost renderer]$ cabal new-install .
cabal: Could not resolve dependencies:
[__0] trying: renderer-0.0.0.0 (user goal)
[__1] next goal: sdl2 (dependency of renderer)
[__1] rejecting: sdl2-2.5.2.0, sdl2-2.5.1.0, sdl2-2.5.0.0 (conflict:
pkg-config package sdl2>=2.0.6, not found in the pkg-config database)
[__1] rejecting: sdl2-2.4.1.0, sdl2-2.4.0.1, sdl2-2.4.0, sdl2-2.3.0,
sdl2-2.2.0, sdl2-2.1.3.1, sdl2-2.1.3, sdl2-2.1.2.1, sdl2-2.1.2, sdl2-2.1.1,
sdl2-2.1.0, sdl2-2.0.0, sdl2-1.3.1, sdl2-1.3.0, sdl2-1.2.0, sdl2-1.1.3,
sdl2-1.1.2, sdl2-1.1.1, sdl2-1.1.0, sdl2-1.0.2, sdl2-1.0.1, sdl2-1.0.0,
sdl2-2.3.0.1 (conflict: renderer => sdl2>=2.5.0.0)
[__1] fail (backjumping, conflict set: renderer, sdl2)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: sdl2, renderer

[shlomif@localhost renderer]$