Configuring sdl2-1.3.1...
Dependency base ==4.8.1.0: using base-4.8.1.0
Dependency transformers ==0.4.2.0: using transformers-0.4.2.0
setup-Simple-Cabal-1.22.4.0-x86_64-linux-ghc-7.10.2: The pkg-config package
'sdl2' version >=2.0.3 is required but it could not be found.