modules/thinkpad: initial commit

doctrine/lib/mk-module.nix

@@ -40,9 +40,13 @@ in {
       }
     ]));
 
-  options.${prefix}.${name} =
+  options = lib.optionalAttrs (options
-    lib.optionalAttrs (options != null && optionsSet ? ${namespace}) optionsSet.${namespace}
+    != null
+    && optionsSet ? ${namespace}) {
+    ${prefix}.${name} =
+      optionsSet.${namespace}
       // {
         enable = lib.mkEnableOption name;
       };
+  };
 }