The build is succesfull without the patch. So delete the patch, and try again. Somehow it doesn't show in the 'cvs diff' correctly as an update, when any file (in my case a patch) is removed.
And about REVISION, a guess for my case is that it represents no. of times package of the same version is changed. Is that right? If it is then for toxcore it will 11. Or is it with repect to how many times a package is updated in OpenBSD, then REVISION=4.
