Jeff Johnson wrote: >> So I'd limit this to replacing $out only. > The problem of infinite recursion can/will reappear > no matter value ${out} has, as its intrinsic to lazy evaluation. Sorry, I should've write the proposal in more details in the first message. I know that nix language cannot replace ${out}. I think that I've found a good workaround for this problem.
>From nix-build(1): nix-build is essentially a wrapper around nix-instantiate (to translate a high-level Nix expression to a low-level store derivation) and nix-store --realise (to build the store derivation). If the proposal will be accepted, one will be able to write derivation { configureFlags="--with-plugins=\${out}/lib/plugins"; } ("\${out}", not "${out}"). nix-instantiate will write to the derivation file: configureFlags="--with-plugins=${out}/lib/plugins" $out will be calculated using this string, not /nix/store/path/lib/plugins. nix-store --realise will replace ${out} with /nix/store/path before setting configureFlags environment variable for the builder. _______________________________________________ nix-dev mailing list nix-dev@cs.uu.nl https://mail.cs.uu.nl/mailman/listinfo/nix-dev