OS/2 thread updates

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4649 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/os2/dnd.h

@@ -13,14 +13,14 @@
 #ifndef __OS2DNDH__
 #define __OS2DNDH__
 
-#ifdef __GNUG__
-#pragma interface
-#endif
-
 #if !wxUSE_DRAG_AND_DROP
     #error  "You should #define wxUSE_DRAG_AND_DROP to 1 to compile this file!"
 #endif  //WX_DRAG_DROP
 
+#define INCL_WINSTDDRAG
+#include <os2.h>
+#include <pmstddlg.h>
+
 //-------------------------------------------------------------------------
 // wxDropSource
 //-------------------------------------------------------------------------

include/wx/os2/private.h

@@ -14,10 +14,9 @@
 #ifndef _WX_PRIVATE_H_
 #define _WX_PRIVATE_H_
 
-#define INCL_DOSPROCESS
-#define INCL_DOSERRORS
 #define INCL_BASE
 #define INCL_PM
+#define INCL_GPI
 #include <os2.h>
 
 class WXDLLEXPORT wxFont;