{cabal, libX11, xineramaSupport ? true, libXinerama ? null, libXext ? null}: assert xineramaSupport -> (libXinerama != null && libXext != null); cabal.mkDerivation (self : { pname = "X11"; version = "1.4.6.1"; sha256 = "3e1375d4e53a8366fa2ea12bd9c3033ffe2f7dd00443acd84f722cf0dfff0fa9"; propagatedBuildInputs = [libX11] ++ (if xineramaSupport then [libXinerama libXext] else []); meta = { description = "A Haskell binding to the X11 graphics library"; }; })