I just did a fresh Arch32 install and I was unable to install all of the packages required to add 'mate & mate-extra'. A dependency for 'ffmpeg' (libvpx.so=5-32) was missing, which in turn made 5 other required dependencies unavailable.
And in this case, it does respond to keypresses like q to quit, so I don't need to SIGINT it. I experienced this already with my previous hacked up usr/lib directory so I could run the previous release, but kind of hoped I'd messed up and it'd run better with a full pentum4 release.