Re: [Haskell-cafe] GHC 6.13 and GHC 7.6 in parallel on Linux

How is it possible to run 2 different versions of GHC

if you installed the binary packages in standard locations, look in /usr/local/bin/ghc* : you have ghc-6.12.3, ghc-7.6.1 etc. and each one knows how to find their libraries. you can even say "cabal install --with-ghc=ghc-7.6.1 foo"