Download the engine here and unzip the archive into your Quake directory.
Includes Linux and Windows builds. The SDL .dlls are included for Windows. Linux users please install libsdl and libsdl-net (crossplatform game dev library), every distro should have them.
This should fix the “white textures” problem.
In other news, ijed has been polishing netherworld tombs with demon saliva for the last few weeks – you can see him lying on his face before an altar of Baoht Z’uqqa-mogg in the above picture. gb could only catch a glimpse of the unspeakable horrors by invoking the fearsome power of Yadd-Tadhag, which has stained him for life.
It still gives me the creeps, dude.
SP Demo 2 has been awarded 18 of 20 points at Quaddicted.com (Review by Tronyn). We feel warm and fuzzy due to this.