2008/8/24 Fabian Bieler <der.fabe(a)gmx.net>:
+ if (use_vs(stateblock->wineD3DDevice) && (enable ^ supported_by_shader_backend) & enable) {
Did you mean to write
if (use_vs(stateblock->wineD3DDevice) && (enable &
~supported_by_shader_backend)) {
there?