Re: PVP proposal: no upper bounds on non-upgradeable packages

On Wed, Apr 9, 2014 at 10:08 PM, Erik Hesselink wrote:

The only constraint that actually makes sense for template-haskell is 'installed', which I have in my cabal.config. I think this should perhaps be built into cabal. This can then be combined with a constraint on the known versions of TH a package works with.

Adding "installed" to the user supplied constraints for base, template-haskell, and ghc-prim sounds sensible.