By now, it happened twice that a commit broke GHC and thus all Haskell packages
we have in Nixpkgs. On such an occasion, I receive well in excess of 3000
notification e-mails from Hydra, and then I receive another 3000 e-mails after
the bug has been fixed. Under these circumstances, subscribing to these
notifications makes no sense for me.
svn path=/nixpkgs/trunk/; revision=33392
Added BNFC-meta, alex-meta, and happy-meta.
Moved these tools into the tool section of haskell-packages.nix, and
paid special attention to the intended alphabetic order.
svn path=/nixpkgs/trunk/; revision=28506
