Click or double-click the executable to launch the program.
Did you do this? Did you get the test program to work? I'm trying to figure out what I'm missing on my system to make this work. PCLOS is as up-to-date as I can get it.
Yes, I can click the Q7Basic executable to run the Q7Basic IDE/interpreter. I would not have told you how to run it unless I could do so. Click on the thumbnail below for the full image.

As I said, the tarball is the 32bit version of the program. It is self contained, which means it has
no external dependencies. Everything you need to run the program is contained in the Q7Basic folder that is extracted from the tarball. I would strongly advise you
not to try to compile anything unless you are familiar with PCLinuxOS already and are reasonably proficient with compiling programs in Linux. The package you are attempting to compile is meant for a
64bit OS. It will not compile in a 32bit environment.