patch applied (cabal): Add checking of Version validity to the VersionIntervals invariant

[Duncan Coutts]

Wed Dec 10 05:41:00 PST 2008  Duncan Coutts <duncan at haskell.org>
  * Add checking of Version validity to the VersionIntervals invariant
  Version numbers have to be a non-empty sequence of non-negataive ints.

    M ./Distribution/Version.hs -1 +12

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20081210134100-adfee-c72b0b3ff242d77508d13ae3671edefd4ec5bf14.gz