Fix various warnings that only appear for release builds

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56628 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/propgrid/props.cpp

@@ -2054,6 +2054,7 @@ bool wxArrayEditorDialog::Create( wxWindow *parent,
     // On wxMAC the dialog shows incorrectly if style is not exactly wxCAPTION
     // FIXME: This should be only a temporary fix.
 #ifdef __WXMAC__
+    wxUnusedVar(style);
     int useStyle = wxCAPTION;
 #else
     int useStyle = style;