Pr compatabilitytest
From FTE
Name: pr_compatabilitytest
Default value: "0"
Flags: latch
This cvar will cause FTE to cause server errors on extended QC builtins that were not quiried for first. Portable mods should run whatever this is set to. Non-portable ones won't. It's handy for making sure you checked for the rare builtins if you can't stand regular quake.