Compiling livestatus.o for Nagios4 and Thruk integration

We’ve been previously using mk-livestatus 1.2.6p6 for our Nagios4 installation with Thruk integration. However, I’m trying to retire the CentOS 6 server that it’s running on with Ubuntu 22.04 LTS. The problem I’m running into is that the source no longer compiles on Ubuntu. I tried searching everywhere for an updated version of the source code, and I’m not having any luck. I did find a version 1.5.0p23 that compiles, but when Thruk tries to talk to it, it would immediately crash Nagios. I’m guessing Thruk only supports the 1.2 track of mk-livestatus. I also see that the last version of 1.2 is 1.2.8p25. Is there anywhere I can get a copy of this source?

There’s a 1.2.8 branch in the Github repository: