[Nix-dev] Re: [Nix-commits] SVN commit: nix - 22282 - MarcWeber - nixpkgs/branches/stdenv-updates/pkgs/stdenv/generic

[Ludovic Courtès]

Hi Peter,

Peter Simons <simons at cryp.to> writes:

>  > It’s impossible to know with certainty whether a package is
>  > parallel-build-safe, i.e., deterministic regardless of the level of
>  > parallelism. Thus, its build output can depend on build task scheduling, in
>  > which case passing the number of cores is indeed an impurity.
>
> Oh, please, come on!

[...]

> Parallel builds are being routinely performed for, I dunno, a decade, maybe?
> You cannot possible have missed that fact. Where have you been? ;-)

They have been a source of entertaining debugging for a decade.  You
cannot possibly have missed that fact.  Where have you been?  ;-)

Ludo’.