Out of curiosity, how does wxSmithDemo get built? Is there some special incantation needed? Also, is the *_wx31_64.cbp stuff being left to die on the vine? I see many *_wx32_64.cbp changes happening without concomitant _wx31_64.cbp changes. Otherwise it works great. Builds itself as expected using all the good stuff, gcc 13.1.0, wxWidgets wxWidgets-3.2.2.1.