[Suggestion] Would you like to add "ldconfig" to the Makefile?
I uninstalled 3.4.1 and installed 3.4.2 without reboot. Then, after compiled and linked an OpenCV program successfully, I met the problem "error while loading shared libraries" while running the executable file. It took me some time to solve the problem. And I think, if you can add ldconfig to the "make install" part of Makefile, many users could avoid the problem. Thank you very much.
maybe you also want to add this idea to the discussion here