Always include debugger support.

src/debug.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 35 matching lines @@
 #include "messages.h"
 #include "natives.h"
 #include "stub-cache.h"
 #include "log.h"
 
 #include "../include/v8-debug.h"
 
 namespace v8 {
 namespace internal {
 
-#ifdef ENABLE_DEBUGGER_SUPPORT
-
-
 Debug::Debug(Isolate* isolate)
     : has_break_points_(false),
       script_cache_(NULL),
       debug_info_list_(NULL),
       disable_break_(false),
       break_on_exception_(false),
       break_on_uncaught_exception_(false),
       debug_break_return_(NULL),
       debug_break_slot_(NULL),
       isolate_(isolate) {
@@ skipping 3676 matching lines @@
       LockGuard<Mutex> lock_guard(&mutex_);
       already_signalled_ = false;
     }
     {
       Locker locker(reinterpret_cast<v8::Isolate*>(isolate_));
       isolate_->debugger()->CallMessageDispatchHandler();
     }
   }
 }
 
-#endif  // ENABLE_DEBUGGER_SUPPORT
-
 } }  // namespace v8::internal