nixpkgs/pkgs/development/tools/parsing/happy/1.19.3.nix

23 lines
807 B
Nix

{ cabal, mtl, perl }:
cabal.mkDerivation (self: {
pname = "happy";
version = "1.19.3";
sha256 = "1q3hipgcwvrf333wlyqmg4mgf24gwiagddlfyr9zgi4k42p2373x";
isLibrary = false;
isExecutable = true;
buildDepends = [ mtl ];
buildTools = [ perl ];
preConfigure = self.stdenv.lib.optional (self.stdenv.lib.versionOlder "7.9" self.ghc.version) ''
sed -i -e 's|extensions: |extensions: FlexibleContexts, |' happy.cabal
sed -i -e 's|> import System.Exit|> import System.Exit ( exitWith, ExitCode(..) )|' src/Main.lhs
'';
meta = {
homepage = "http://www.haskell.org/happy/";
description = "Happy is a parser generator for Haskell";
license = self.stdenv.lib.licenses.bsd3;
platforms = self.ghc.meta.platforms;
maintainers = [ self.stdenv.lib.maintainers.andres ];
};
})