Fixes for 16-bit compilation

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@4166 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/dobjcmn.cpp

@@ -293,6 +293,8 @@ bool wxCustomDataObject::SetData(size_t size, const void *buf)
 // some common dnd related code
 // ============================================================================
 
+#if wxUSE_DRAG_AND_DROP
+
 #include "wx/dnd.h"
 
 // ----------------------------------------------------------------------------
@@ -331,3 +333,5 @@ wxDragResult wxFileDropTarget::OnData(wxCoord x, wxCoord y, wxDragResult def)
     return OnDropFiles(x, y, dobj->GetFilenames()) ? def : wxDragNone;
 }
 
+#endif
+