[gtkmm] examples versus gcc 2.95.3

[Murray Cumming Comneon com]

I'd like to release a new version, but we need to fix this tiny problem
first:
http://bugzilla.gnome.org/show_bug.cgi?id=111184

Could someone with gcc 2.95.3 try it out?

Murray Cumming
murrayc usa net
www.murrayc.com