10 Jan
2011
10 Jan
'11
1:27 p.m.
On 10 January 2011 15:42, Christian Maeder
Am 08.01.2011 23:59, schrieb Thomas DuBuisson:
Cabal has this really ugly hack called "preferred versions". This is how you get QC 1 (vs 2) and Parsec 2 (vs 3) when you don't specify. To get around this just add a constraint:
cabal install 'QuickCheck >= 2'
Right, the "preferred version" for QuickCheck should be updated to version 2, because the haskell platform happened to switch from QC1 to QC2 some time ago.
Ah, good point. Fixed. (For some reason I thought I'd done it already, but apparently not) http://hackage.haskell.org/packages/archive/preferred-versions Duncan