Use complete class for delete of the class.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39418 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/include/wx/sizer.h b/include/wx/sizer.h
index fcb3a86898cc399198252e8fbceba3d5c8244e8f..73d99c2779e7c959afa9e66f9ec3fc440f7c7779 100644 (file)
--- a/include/wx/sizer.h
+++ b/include/wx/sizer.h
@@ -678,7 +678,7 @@ private:
 
 #if wxUSE_STATBOX
 
-class WXDLLEXPORT wxStaticBox;
+#include "wx/statbox.h"
 
 class WXDLLEXPORT wxStaticBoxSizer: public wxBoxSizer
 {