stdenv.mkDerivation: inline function calls

      overrideAttrs =

        f0:

        makeDerivationExtensible (

          (

            overlay: f: final:

          final:

          let

              prev = f final;

              thisOverlay = overlay final prev;

            prev = rattrs final;

            thisOverlay = lib.toExtension f0 final prev;

            pos = builtins.unsafeGetAttrPos "version" thisOverlay;

          in

          lib.warnIf

              (To silence this warning, set `__intentionallyOverridingVersion = true` in your `overrideAttrs` call.)

            ''

            (prev // (removeAttrs thisOverlay [ "__intentionallyOverridingVersion" ]))

          )

            (lib.toExtension f0)

            rattrs

        );

      finalPackage = mkDerivationSimple overrideAttrs args;