use GTK-specific GUI lock

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@44245 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/unix/threadpsx.cpp

@@ -132,10 +132,12 @@ static wxMutex *gs_mutexDeleteThread = (wxMutex *)NULL;
 // gs_nThreadsBeingDeleted will have been deleted
 static wxCondition *gs_condAllDeleted = (wxCondition *)NULL;
 
+#ifndef __WXGTK20__
 // this mutex must be acquired before any call to a GUI function
 // (it's not inside #if wxUSE_GUI because this file is compiled as part
 // of wxBase)
 static wxMutex *gs_mutexGui = NULL;
+#endif
 
 // when we wait for a thread to exit, we're blocking on a condition which the
 // thread signals in its SignalExit() method -- but this condition can't be a
@@ -1624,8 +1626,10 @@ bool wxThreadModule::OnInit()
 
     gs_mutexAllThreads = new wxMutex();
 
+#ifndef __WXGTK20__
     gs_mutexGui = new wxMutex();
     gs_mutexGui->Lock();
+#endif
 
     gs_mutexDeleteThread = new wxMutex();
     gs_condAllDeleted = new wxCondition(*gs_mutexDeleteThread);
@@ -1678,9 +1682,11 @@ void wxThreadModule::OnExit()
 
     delete gs_mutexAllThreads;
 
+#ifndef __WXGTK20__
     // destroy GUI mutex
     gs_mutexGui->Unlock();
     delete gs_mutexGui;
+#endif
 
     // and free TLD slot
     (void)pthread_key_delete(gs_keySelf);
@@ -1727,6 +1733,7 @@ static void DeleteThread(wxThread *This)
     }
 }
 
+#ifndef __WXGTK20__
 void wxMutexGuiEnter()
 {
     gs_mutexGui->Lock();
@@ -1736,6 +1743,7 @@ void wxMutexGuiLeave()
 {
     gs_mutexGui->Unlock();
 }
+#endif
 
 // ----------------------------------------------------------------------------
 // include common implementation code