cabal, ghc-pkg, PATH

Hi, Does cabal use the version of ghc and ghc-pkg from PATH? I have ones which are locally installed, and sometimes it seems like cabal is using the ones in /usr/bin/ instead. For instance, it is complaining about packages which are only visible to the versions installed in /usr/bin/. However, cabal wouldn't be messing up consistently since it shows the correct 'ghc' path for compilations, when I run it with '-v'. Thanks, Frederik -- http://ofb.net/~frederik/