patch applied (cabal): Fix the depth calculation for the version range expression check

Wed Sep 16 20:27:48 PDT 2009 Duncan Coutts * Fix the depth calculation for the version range expression check Ignore-this: da1f0fefd17c1269f39e93e4623dc274 Previously it was complaining about expressions like

= 2 && < 3 because internally >= is represented in terms of >, == and ||. The fix is to use new fold that gives a view with the extra syntactic sugar so that <= and <= can be counted as one.

M ./Distribution/PackageDescription/Check.hs -2 +4 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20090917032748-adfee-4f44bc304...