first round of debug/release merge: introduce wxDEBUG_LEVEL, for now defined as 1 if __WXDEBUG__ is defined, i.e. no real changes; don't use __WXDEBUG__ in the headers to keep debug and release builds ABI-compatible; add functions to customize or disable asserts handling

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59711 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msgdlg.h

@@ -140,7 +140,6 @@ public:
     // change the dialog style flag
     void SetMessageDialogStyle(long style)
     {
-#ifdef __WXDEBUG__
         wxASSERT_MSG( ((style & wxYES_NO) == wxYES_NO) || !(style & wxYES_NO),
                       "wxYES and wxNO may only be used together" );
 
@@ -161,7 +160,6 @@ public:
 
         if ((style & wxCANCEL_DEFAULT) != 0 && (style & wxNO_DEFAULT) != 0)
             wxFAIL_MSG("only one default button can be specified");
-#endif
 
         m_dialogStyle = style;
     }