Fixing "breaking packages"
simonpj at microsoft.com
Fri Mar 1 11:25:26 CET 2013
Duncan, Mark, Simon
Here's another cry of pain: http://fluffynukeit.com/2013/02/reflections-after-a-hard-day-in-haskell-gui-land/
"Cabal is a frustratingly constraining tool. Far too frequently I encountered packages that, when trying to install, would say installing this package will break a dozen others. If not that, then I often would be notified that the dependencies could not be resolved. "
What is frustrating that we KNOW how to fix this, don't we? (Allow multiple installations of package P-3.2.5, each depending on different versions of its dependencies.) We just need to liberate enough effort to do it.
Indeed, more people seem to be joining in with GHC/Cabal these days. How hard would it be to write a detailed description of the implementation changes needed to support side-by-side installations, and project-manage a group to do it?
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