7 Jan
2011
7 Jan
'11
4:24 p.m.
Is there some way to have cabal (or some other ghc packaging program) tell me about dependencies, and what packages have brought in what other packages? I can't imagine that digging through .cabal files is the normal way to figure this out.
ghc-pkg describe yourpackage
Much more sane. "ghc-pkg describe json" lists mtl-1.1.0.2, but none of the other deps (array, base, bytestring, containers, parsec, pretty, syb) depend on mtl at all. It's especially strange that when I installed json through cabal it didn't have any problem using mtl-2, but now it's decided json wants mtl-1.