[Nix-dev] nix-shell for a custom haskell library

[Dmitry Malikov]

Hi Peter,

> The "env" attribute of engine-io (which is
> what nix-shell enters here) gives you an environment in which engine-io
> can be compiled.

If I remember correctly, old `haskellPackages.mkDerivation` was producing
an environment with compiled sources and installed libraries.
How to configure `shell.nix` to get `cabal configure && cabal build` done
after entering the nix-shell? What was the reason to move this step out of
nix-shell routine?

On 31 May 2015 at 12:13, Peter Simons <simons at cryp.to> wrote:

> Hi Dmitry,
>
>  > After I did `nix-shell` engine-io package is not actually installed
>  > inside this shell.
>
> it is not supposed to be. The "env" attribute of engine-io (which is
> what nix-shell enters here) gives you an environment in which engine-io
> can be compiled. That environment does not contain engine-io.
>
> Best regards,
> Peter
>
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