Am Samstag, 17. Januar 2009 23:20 schrieb Alberto G. Corona:
Hi guys:
I don´t know how difficult really is, but it seens that it could be done because all the necessary elements are there (except perhaps the mapping package name-hackage url): Why hasn´t been done yet Is unknown to me. It would be very useful and a big save of time to have a cabal commad "chech-dependencies-and-install-them-by-downloading-them-from-hackage-then- configure-build-and-install-this-package?. The unix installers do is t from binaries and are obsolete, so I have to do it manually with cabal everytime when i download a new compiler version from haskell.org.
Cheers Alberto.
Use cabal-install: cabal update && cabal install foo checks for dependencies, downloads and builds them automatically (if possible).