kernel: Fix pure evaluation

This fixes usage in pure evaluation mode (e.g., flakes).
tpwrules · Aug 23, 2022 · b59dce7 · b59dce7
1 parent 626844b
commit b59dce7
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/nix/m1-support/kernel/package.nix b/nix/m1-support/kernel/package.nix
@@ -6,9 +6,12 @@
  }
  else pkgs;
 
- # we do this so the config can be read on any system and not affect
- # the output hash
- localPkgs = import (pkgs.path) { system = builtins.currentSystem; };
+ localPkgs =
+ # we do this so the config can be read on any system and not affect
+ # the output hash
+ if builtins ? currentSystem then import (pkgs.path) { system = builtins.currentSystem; }
+ else pkgs;
+
  readConfig = configfile: import (localPkgs.runCommand "config.nix" {} ''
  echo "{" > "$out"
  while IFS='=' read key val; do