[Haskell-cafe] How to add constraint to .cabal?

[Brent Yorgey]

On Thu, Jul 19, 2012 at 09:37:52AM +0800, Magicloud Magiclouds wrote:
> Hi,
>   Say I have a package that only appends
> --constraint="template-haskell==2.7.0.0"
> --constraint="warp-tls==1.2.1" could I install it. Now I want to
> release the package, then how could I have these constraint into the
> .cabal so the user would not get troubled?

Using the build-depends field.  See
http://www.haskell.org/cabal/users-guide/developing-packages.html#build-information

-Brent