I cloned the OXCE+ from
https://github.com/MeridianOXC/OpenXcom/tree/oxce2.9-plus-proto , then compiled according to
https://www.ufopaedia.org/index.php?title=Compiling_%28OpenXcom%29 , then copied over UFO and TFTD assets and Piratez data into their respective folders. Oddly, the compilation didn't put the openxcom executable into the bin folder, I had to do that manually.
When I try to run it, I get a "signal 11" crash and the attached error log.
The highlight appears to to be
[FATAL] /lib/x86_64-linux-gnu/libc.so.6(+0x36d40) [0x7fd9eca2fd40]
So I looked into what causes errors relating to libc.so.6, and followed the directions here
https://askubuntu.com/questions/40416/why-is-lib-libc-so-6-missingBut that didn't help, so then I tried sudo apt-get install libc6* to install both 64 and 32-bit versions of everything that it might be missing. Still the same error.
I apologize if I'm missing something simple. I'm trying to wean completely off Windows but I'm not that sophisticated with any form of Linux yet either.