NixOS/nixpkgs — pull request #124 by peti (2012-09-06 15:20:25+00:00)
Title: Use jailbreak to deal with over-specified version restrictions in Cabal builds

`jailbreak` is a tool to drop all versions restrictions on build dependencies from Cabal files. Use of that tool makes it a lot easier to perform updates. Until now, I've manually patched Cabal files with `sed` to achieve the same effect. Please provide feedback whether you like this solution or not.