Am Mittwoch 01 Juli 2009 01:11:44 schrieb Iain Barnett:
I think I posted this to the wrong list (libraries), so I've forwarded it here. ----
I'm trying to install HTTP-3000.0.0 (because I don't have cabal-install, and it's a dependency for cabal-install 0.4.9)
This is on a Debian 5.1 machine with GHC 6.8.2 and 6.8.3 on it.
The command: sudo runghc Setup configure -p && sudo runghc Setup build && sudo runghc Setup install
The error: Could not find module `Data.Array.MArray': it is a member of package array-0.1.0.0, which is hidden
ghc-pkg does list the hidden package.
In the 6.8 series, the base package was split up. Prior to that, the Array modules were part of base. HTTP-3000.0.0 seems to be from before 6.8, so it doesn't list the array package among its build dependencies. Cabal hides all packages which aren't listed when building a library. Quick fix: add array to the build dependencies in the .cabal file. But why are you trying to build such an outdated cabal-install?
I've seen other threads on this "hiding" problem and searched through the GHC user guide, but I haven't actually found a solution, just explanation. I've tried sending the -package flag through to GHC by adding it to the runghc command, but I'm not doing this right, obviously.
Would someone be able to point me in the right direction? It would be much appreciated.
Iain