Put wxGTK's threads back to life.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2538 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/thread/test.cpp

@@ -130,10 +130,14 @@ void MyThread::WriteText(const wxString& text)
 
     // before doing any GUI calls we must ensure that this thread is the only
     // one doing it!
-    wxMutexGuiLocker guiLocker;
+    
+    wxMutexGuiEnter();
+    
     msg << wxTime().FormatTime() << ": " << text;
 
     m_frame->WriteText(msg);
+
+    wxMutexGuiLeave();
 }
 
 void MyThread::OnExit()