haskell-json: fix build with GHC 7.4.x

svn path=/nixpkgs/trunk/; revision=32162
2012-02-09 14:38:03 +00:00 · 2012-02-09 14:38:03 +00:00 · 1e8e60da41
commit 1e8e60da41
parent 24ff52e62e
1 changed files with 1 additions and 0 deletions
--- a/pkgs/development/libraries/haskell/json/default.nix
+++ b/pkgs/development/libraries/haskell/json/default.nix
@ -5,6 +5,7 @@ cabal.mkDerivation (self: {
  version = "0.5";
  sha256 = "12jbvq0lp7z5q6g94pv8s5455yydfyh9h2xlr76wqzfh3myvy6fl";
  buildDepends = [ mtl parsec syb ];
+  patchPhase = "sed -i json.cabal -e '1iExtensions: FlexibleInstances'";
  meta = {
    description = "Support for serialising Haskell to and from JSON";
    license = self.stdenv.lib.licenses.bsd3;