Build Instructions for Pi 5

Following the instructions here:

https://forums.raspberrypi.com/viewtopic.php?p=2323264&hilit=Q3lite&sid=e18809165bb4389cd517b0d9e0d61b07#p2323264

Download is OK:

$ git clone https://github.com/ioquake/ioq3.git
Cloning into 'ioq3'...
remote: Enumerating objects: 31158, done.
remote: Counting objects: 100% (2/2), done.
remote: Compressing objects: 100% (2/2), done.
remote: Total 31158 (delta 0), reused 0 (delta 0), pack-reused 31156 (from 2)
Receiving objects: 100% (31158/31158), 93.97 MiB | 424.00 KiB/s, done.
Resolving deltas: 100% (22197/22197), done.

Change directory is OK:

$ cd ioq3/
ioq3 $ ls
ChangeLog  cmake  CMakeLists.txt  code  CONTRIBUTING.md  COPYING.txt  docs  misc  README.md  SECURITY.md  TODO  ui

The make command fails:

ioq3 $ make -j4
make: *** No targets specified and no makefile found.  Stop.

Are the instructions out of date?