Remy, Is there some particular reason for keeping a copy of extensible-exceptions in [extra]? extensibe-exceptions 0.1.1.1 is provided by GHC extensible-exceptions 0.1.1.2 is in [extra] Finally, haskell-platform 2010.2.0.0 specifies version 0.1.1.1. The only package which requires extensible-exceptions is haskell-terminfo, but according to its hackage page it has the dependency extensible-exceptions (>=0.1.1.0 & <0.2) So it would be satisfied by the version bundled with GHC. Given all this, couldn't we just remove the version of extensible-exceptions in [extra] (and rebuild haskell-terminfo)? /M -- Magnus Therning OpenPGP: 0xAB4DFBA4 email: magnus@therning.org jabber: magnus@therning.org twitter: magthe http://therning.org/magnus