X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9dc8c75994524ed89a660e9d2c01333572be0245..3b3fe1f6e766caf35aa3ff4ce0ac01d31699da71:/include/wx/datetime.h

diff --git a/include/wx/datetime.h b/include/wx/datetime.h
index 1794c796a6..287655c6e7 100644
--- a/include/wx/datetime.h
+++ b/include/wx/datetime.h
@@ -7,7 +7,7 @@
 // Created:     10.02.99
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifndef _WX_DATETIME_H
@@ -1322,6 +1322,9 @@ public:
     // wxDateTimeHolidayAuthority)
     static void AddAuthority(wxDateTimeHolidayAuthority *auth);
 
+    // the base class must have a virtual dtor
+    virtual ~wxDateTimeHolidayAuthority();
+
 protected:
     // this function is called to determine whether a given day is a holiday
     virtual bool DoIsHoliday(const wxDateTime& dt) const = 0;