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-rw-r--r--lib/customisation.nix14
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/customisation.nix b/lib/customisation.nix
index cc9a9b1c55d0a..de424b0d722b8 100644
--- a/lib/customisation.nix
+++ b/lib/customisation.nix
@@ -38,12 +38,14 @@ rec {
       //
       (drv.passthru or {})
       //
-      (if (drv ? crossDrv && drv ? nativeDrv)
-       then {
-         crossDrv = overrideDerivation drv.crossDrv f;
-         nativeDrv = overrideDerivation drv.nativeDrv f;
-       }
-       else { }));
+      (lib.optionalAttrs (drv ? crossDrv && drv ? nativeDrv) {
+        crossDrv = overrideDerivation drv.crossDrv f;
+        nativeDrv = overrideDerivation drv.nativeDrv f;
+      })
+      //
+      lib.optionalAttrs (drv ? __spliced) {
+        __spliced = {} // (lib.mapAttrs (_: sDrv: overrideDerivation sDrv f) drv.__spliced);
+      });
 
 
   /* `makeOverridable` takes a function from attribute set to attribute set and