[Nix-dev] Re: [Nix-commits] SVN commit: nix - 16224 - MarcWeber - in nixpkgs/trunk/pkgs: misc top-level

[Ludovic Courtès]

Hello,

Marc Weber <marco-oweber at gmx.de> writes:

> Author: MarcWeber
> Date: 2009-07-07 20:53:16 +0000 (Tue, 07 Jul 2009)
> New Revision: 16224
>
> You can view the changes in this commit at:
>    https://svn.nixos.org/viewvc/nix?rev=16224&view=rev
>
> Added:
>    nixpkgs/trunk/pkgs/misc/misc.nix

How about renaming it `misc/various/assorted/mixed.nix' to make the
intent even clearer?  :-)

> adding cdtEnv symlinking deps into one $out/cdt-env/{lib,include} directory
> and collection which let's you install and update a set of derivations at once

[...]

> +  /* 
> +
> +    usage example creating a derivation installing ruby, sup and a lib:
> +
> +    packageOverrides = {
> +      rubyCollection = collection {
> +        name = "ruby";
> +        list = let l = rubyLibs; in 
> +          [ pkgs.ruby l.chronic l.sup ];
> +      };
> +    }
> +
> +  */

[...]

> +  /* creates a derivation symlinking references C/C++ libs into one include and lib directory called $out/cdt-envs/${name}
> +     then you can
> +     ln -s ~/.nix-profile/cdt-envs/name ./nix-deps
> +     and add .nix-deps/{libs,includes} to IDE's such as Eclipse/ Netbeans etc.
> +     To update replace library versions just replace the symlink
> +  */

I don't understand the description and examples.  Can you clarify the
problem it solves?

Also, what does `cdtEnv' mean?

Thanks,
Ludo'.