{ cabal, multirec }: cabal.mkDerivation (self: { pname = "zipper"; version = "0.3.1"; sha256 = "170qjc3mbk6i96z5js745ix57i0xkgpa5h9xjiiirq9x6bfbbqyp"; buildDepends = [ multirec ]; meta = { homepage = "http://www.cs.uu.nl/wiki/GenericProgramming/Multirec"; description = "Generic zipper for families of recursive datatypes"; license = self.stdenv.lib.licenses.bsd3; platforms = self.ghc.meta.platforms; maintainers = [ self.stdenv.lib.maintainers.andres ]; }; })