cabal install yesod gives an error on ghc 7.02:
http://hackage.haskell.org/trac/ghc/ticket/5004

One of the commenters on that ticcket says: "found that providing an
unstripped version of libHsghc-7.0.2.a allows for successful linking.
"

Where can i get that unstripped version of libHsghc-7.0.2.a  ?