fix 10.2 shared builds from crashing

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33719 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/appbase.cpp

@@ -269,6 +269,9 @@ wxMessageOutput *wxAppConsole::CreateMessageOutput()
 
 void wxAppConsole::ProcessPendingEvents()
 {
+    if ( !wxPendingEventsLocker )
+        return;
+    
     // ensure that we're the only thread to modify the pending events list
     wxENTER_CRIT_SECT( *wxPendingEventsLocker );