cafe, is there a way to patch the build-depends line of a cabal file without breaking backwards compatibility? I just patched HDBC head to compile under ghc 6.7. Unfortunately it now won't compile in 6.6.1. is there a way for build-depends to detect which version of ghc you're on? also I seem to recall that -fglasgow-exts was deprecated under 6.7. is there a better way to beat back the error message below than this? thanks, thomas. { hunk ./Database/HDBC/Statement.hs 1 +{-# LANGUAGE TypeSynonymInstances #-} hunk ./Database/HDBC/Types.hs 1 +{-# OPTIONS_GHC -fglasgow-exts #-} +{- +-- without -fglasgow-exts you get: [_$_] +Database/HDBC/Types.hs:202:0: + Illegal polymorphic or qualified type: forall conn. + (IConnection conn) => + conn -> b + In the type signature for `withWConn': + withWConn :: forall b. + ConnWrapper -> (forall conn. (IConnection conn) => conn -> b) -> b +-} hunk ./HDBC.cabal 13 -Build-Depends: base, mtl + +Build-Depends: base, mtl, old-time, bytestring, containers +-- breaks backwards compability with ghc 6.6.1 + } --- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.