Atemu
1
I’m trying to test the effect of -march
by compiling Nix packages and benchmarking them.
This is what I’m trying to use:
{ }:
let
pkgs = import <nixpkgs> {
overlays = [
(self: super: {
stdenv = super.stdenvAdapters.impureUseNativeOptimizations super.gcc11Stdenv;
})
];
};
in pkgs.mkShell {
packages = with pkgs; [ zstd ];
}
I get infinite recursion though. What am I doing wrong?
Try something along the lines of this:
{ }:
let
pkgs = import <nixpkgs> {
config.replaceStdenv = { pkgs }: pkgs.gcc11Stdenv;
};
in pkgs.mkShell {
packages = with pkgs; [ zstd ];
}
Have not tested it but I expect it to work
1 Like
With nixpkgs-unstable, this patch is needed to avoid infinite recursion using replaceStdenv