Add setFunctionArgs lib function.

Among other things, this will allow *2nix tools to output plain data
while still being composable with the traditional
callPackage/.override interfaces.

1 files changed, 2 insertions, 2 deletions

diff --git a/pkgs/development/haskell-modules/make-package-set.nix b/pkgs/development/haskell-modules/make-package-set.nix
index 223f06528879..0f866a96e71e 100644
--- a/pkgs/development/haskell-modules/make-package-set.nix
+++ b/pkgs/development/haskell-modules/make-package-set.nix
@@ -81,8 +81,8 @@ let
       # lost on `.override`) but determine the auto-args based on `drv` (the problem here
       # is that nix has no way to "passthrough" args while preserving the reflection
       # info that callPackage uses to determine the arguments).
-      drv = if builtins.isFunction fn then fn else import fn;
-      auto = builtins.intersectAttrs (builtins.functionArgs drv) scope;
+      drv = if stdenv.lib.isFunction fn then fn else import fn;
+      auto = builtins.intersectAttrs (stdenv.lib.functionArgs drv) scope;
 
       # this wraps the `drv` function to add a `overrideScope` function to the result.
       drvScope = allArgs: drv allArgs // {