Maybe you just have to install "ca-certificates"? It is an optional dep for openssl and thereby also for links only.
Have a look here, Their definition of OpenGL 3.1 support does not seem to fully extend to their linux end-users, that's how one might read that. It also states there those "GL_ARB" compatibility features karol quotes are available in the windows driver.
Welcome to the forum, duncant. The package is just not journald ready. However, since you have syslog-ng installed it should still be working I would reckon (just not with journalctl). Have a look here for info and alternative (last post): https://bbs.archlinux.org/viewtopic.php?id=151562