Index: runtime/vm/dart_entry.cc |
diff --git a/runtime/vm/dart_entry.cc b/runtime/vm/dart_entry.cc |
index bf6a49ef63487f05e4cd058aeb19a0b626c25cf9..615976f3352223c610de26325b81ebb9bec3ba11 100644 |
--- a/runtime/vm/dart_entry.cc |
+++ b/runtime/vm/dart_entry.cc |
@@ -556,7 +556,7 @@ RawObject* DartLibraryCalls::HandleMessage(const Object& handler, |
const Array& args = Array::Handle(zone, Array::New(kNumArguments)); |
args.SetAt(0, handler); |
args.SetAt(1, message); |
- if (isolate->debugger()->IsStepping()) { |
+ if (FLAG_support_debugger && isolate->debugger()->IsStepping()) { |
// If the isolate is being debugged and the debugger was stepping |
// through code, enable single stepping so debugger will stop |
// at the first location the user is interested in. |