[Nix-dev] Multiple outputs: is a first output necessary?

[Vladimír Čunát]

Hi.

On 12/07/2016 01:13 PM, Freddy Rietdijk wrote:
> I'm not using any of the common outputs like $out and $bin. The multiple
> outputs feature seems to require that $out is used. Therefore I now just
> put a single file in $out. What is the reason this is needed? I saw in
> the documentation that leftover files are typically put in $out.

I don't think it's strictly required at all. The only problem I know of
is that lots of standard variables provided by the framework default to
$out (transitively), like $outputDev etc.  If you define these as
arguments to mkDerivation, it might work.

You can see the setting up of those on
https://github.com/NixOS/nixpkgs/blob/master/pkgs/build-support/setup-hooks/multiple-outputs.sh#L32

--Vladimir


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