[Haskell-cafe] GHC and backwards compatibility

Henning Thielemann schlepptop at henning-thielemann.de
Wed Aug 21 08:57:51 CEST 2013

If you use

$ cabal install --constraint="array installed"

then cabal-install is forced to use the installed version of array. If a 
package conflicts with this version, then it will report the conflicting 

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