diff --git a/js/js2/interpreter.cpp b/js/js2/interpreter.cpp
index e2bcf4f77701..d3165e7e54e1 100644
--- a/js/js2/interpreter.cpp
+++ b/js/js2/interpreter.cpp
@@ -454,7 +454,7 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
                 break;
             case WITHOUT:
                 {
-                    Without* without = static_cast<Without*>(instruction);
+                    // Without* without = static_cast<Without*>(instruction);
                     mGlobal = mGlobal->getParent();
                 }
                 break;
diff --git a/js/js2/jstypes.cpp b/js/js2/jstypes.cpp
index 6eb92f8eb07b..021486eb1dd8 100644
--- a/js/js2/jstypes.cpp
+++ b/js/js2/jstypes.cpp
@@ -51,6 +51,8 @@ int JSValue::operator==(const JSValue& value) const
         CASE(i64); CASE(u64); CASE(f64);
         CASE(object); CASE(array); CASE(function);
         #undef CASE
+        // question:  are all undefined values equal to one another?
+        case undefined_tag: return 1;
         }
     }
     return 0;
diff --git a/js2/src/interpreter.cpp b/js2/src/interpreter.cpp
index e2bcf4f77701..d3165e7e54e1 100644
--- a/js2/src/interpreter.cpp
+++ b/js2/src/interpreter.cpp
@@ -454,7 +454,7 @@ JSValue Context::interpret(ICodeModule* iCode, const JSValues& args)
                 break;
             case WITHOUT:
                 {
-                    Without* without = static_cast<Without*>(instruction);
+                    // Without* without = static_cast<Without*>(instruction);
                     mGlobal = mGlobal->getParent();
                 }
                 break;
diff --git a/js2/src/jstypes.cpp b/js2/src/jstypes.cpp
index 6eb92f8eb07b..021486eb1dd8 100644
--- a/js2/src/jstypes.cpp
+++ b/js2/src/jstypes.cpp
@@ -51,6 +51,8 @@ int JSValue::operator==(const JSValue& value) const
         CASE(i64); CASE(u64); CASE(f64);
         CASE(object); CASE(array); CASE(function);
         #undef CASE
+        // question:  are all undefined values equal to one another?
+        case undefined_tag: return 1;
         }
     }
     return 0;