GNU compiler included with Mac OS X 10.2 (Jaguar) as well as available updates
contain a bug concerning #pragma interface handling that can only be worked
around by not using them (and they are not necessary anyways)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@20584 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
from Marcin Wojdyr (wojdyr)
Applied with some modifications (remove buttons from the chain on
destruction, or the program will segfault).
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16382 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
