lack of automatic recompilation after library updating

Hello glasgow-haskell-bugs,

i just reinstalled FPS library with new version downloaded via darcs
(both old and new versions are 0.7, difference is few days only)

i run the following to update lib:

runghc Setup.hs unregister
runghc Setup.hs clean
runghc Setup.hs build
runghc Setup.hs install

and then i try to rebuild my app. it does not "feels" that FPS library
was updated and don't recompiled modules that use it. can this be
considered as bug? ghc 6.4.2/windows

-- 
Best regards,
 Bulat                          mailto:Bulat.Ziganshin@xxxxxxxxx