NixOS/nixpkgs — pull request #485 by maggesi (2013-04-23 12:11:09+00:00)
Title: ProofGeneral: Workaround for bug #458

"ProofGeneral 4.2 byte-compilation fails with Emacs 24.2.90"
http://proofgeneral.inf.ed.ac.uk/trac/ticket/458