disable use of #pragma interface under Mac OS X

GNU compiler included with Mac OS X 10.2 (Jaguar) as well as August Developer
Tools update contain a bug concerning #pragma interface handling that can only
be worked around by not using them (and they are not necessary anyways)


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16895 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/taskbar/tbtest.cpp

@@ -17,10 +17,10 @@
 #endif
 
 #ifndef WX_PRECOMP
-#include <wx/wx.h>
+#include "wx/wx.h"
 #endif
 
-#include <wx/msw/taskbar.h>
+#include "wx/msw/taskbar.h"
 #include "tbtest.h"
 
 // Declare two frames