The second answer here [1] gives directions on how to remove the opengl dependencies from the haskell platform, assuming you're building from source.

As for the original question, I'm not sure. Did you already try cabal install cabal-install?

[1] http://stackoverflow.com/questions/18116201/how-can-i-disable-opengl-in-the-haskell-platform

On Thu, Feb 27, 2014 at 11:09 AM, Obscaenvs <obscaenvs@gmail.com> wrote:

Have:
* The Glorious Glasgow Haskell Compilation System, version 7.6.3
* cabal-install version 1.16.0.2
using version 1.16.0 of the Cabal library

Can I update to Cabal 1.18 so I can use sandboxes without breaking my
dependencies? I think that that is what broke my Haskell toolchain 2h
ago. Now I redid it so everything's fine, but I'd like to use sandboxes.
If impossible, hsenv has worked for me in the past, but...

I did not want to use Haskell Platform, since it pulls in several OpenGL
libs completely unnecessary *for* and potentially detrimental *to* my
server. "Haskell Platform, Server Edition", anyone?

fredrik
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