Compilation error on raspberry pi 4

[thomasfla]

Hi Thanks for this great tool!

I'm wanted to build plotjuggler for a raspberry pi 4 without ROS (on a debian based raspberry OS) and ran into problems that I managed to solve:

First, on the raspberry Pi 4 I had to remove --parallel option as the Pi is quite limited and crashed with it.

Then I had compiling errors such as error: 'zmq_msg_more' was not declared in this scope I solved them by installing libzmq3-dev sudo apt-get install libzmq3-dev witch replaced the libzmq-dev given in COMPILE.md

Finally, I had to run with option --disable_opengl