Hello cafe-readers, does anyone of you observe similar problems e. g. on a Windows with ghc-7.0.2 setup: When I'm trying cabal install threadscope (as an example package depending on gtk2hs, latter which I've installed using the stepwise approach of cabal unpack first, then cabal configure --user etc.) it complains about cairo etc. not being installed and tries to re-install it on-the-fly, failing due to whats described her: http://hackage.haskell.org/trac/gtk2hs/ticket/1203! When I install cabal-dev and cab first and then re-install everything with cab instead of cabal the issue with re-installing already installed packages described above disappears and only an "unknown symbol" message related to the correctly found installed cairo package remains. So is there an error in package database handling somewhere or changed semantics in cabal | ghc-pkg | (even) pkg-config flags I missed? Cheers Daniel