GHC 7.4.2 on Ubuntu Trusty

[Ryan Trinkle]

Here's an off-the-wall solution idea: you could try the Nix package
manager.  It essentially sandboxes everything all the time, so you
shouldn't have any trouble with dependencies like this, and ghc 7.4.2 is
explicitly supported.  Of course, if your requirements include tight apt
integration, this won't help; but if you just need to get things running
reliably "somehow", I think Nix can handle it.

Feel free to message me off-list for more details.


Ryan

On Wed, Oct 22, 2014 at 6:48 AM, Yitzchak Gale <gale at sefer.org> wrote:

> In order support some older software that we released, we need
> to get a working GHC 7.4.2 on Ubuntu Trusty. We currently have
> GHC 7.8.3.
>
> The binary tarball for GHC 7.4.2 does not install on Trusty due to
> multiple incompatibilities. For example, GHC requires GMP 3, but
> Trusty only provides GMP >= 4. Etc.
>
> I tried building GHC 7.4.2. from source on Trusty. But the process
> won't boot from our currently installed GHC 7.8.3. The oldest
> GHC binary I can get is GHC 7.6.3, which happens to be
> still available from the Ubuntu distribution itself (neither the binary
> tarball nor compiling from source work for GHC 7.6.3 on Trusty
> either). But booting from GHC 7.6.3 won't work either.
>
> How do I get a working GHC 7.4.2 on Trusty?
>
> Thanks,
> Yitz
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