depot/third_party/nixpkgs/pkgs/development/compilers/ghcjs/8.10/common-overrides.nix

{ haskellLib }:

let inherit (haskellLib) addBuildTools appendConfigureFlag dontHaddock doJailbreak;
in self: super: {
  ghcjs = doJailbreak (super.ghcjs.overrideScope (self: super: {
    optparse-applicative = self.optparse-applicative_0_15_1_0;
  }));
}