This project contains cabal.config files which may be placed
into the root of a Cabal project's folder to restrict the versions
of packages that the Cabal dependency solver can use to
construct a build, similar to what the cabal freeze command
does.
Currently we provide cabal.config constraint-files for various
recent releases of the Haskell Platform and recent releases
of Debian.
The hope is that you can use sandboxes and convinient build
tools like cabal install to build your package and transparently
pull in dependencies while still testing against a realistic
environment that some of your consumers may try to use.
I'm not sure yet if this is a good idea, and it is probably more
useful to library developers than application developers (an
application developer can just use cabal freeze after all). I'm
putting this out here because when I wanted to see if this would
be helpful I didn't see anything like this already published - other
than the cabal.config files published for Stackage builds.