[Haskell-beginners] cabal multi-library setup

[Cristian Petrescu Prahova]

Hi,

I have a small project consisting of a library and an application. I  
cabalized both. However, whenever I tweak the library I cabal install  
it, then move to the app directory, then reconfigure, then rebuild.  
This is annoying repetitive shell typing. Is there a way to configure  
my setup such that cabal build app automatically rebuilds (and  
reinstalls?) the library dependency? I'd like something like:

# builds the library and runs the tests
cabal make lib

# builds the app and the library dependency, then runs the app
cabal make app

Thank you,
Cristian