gplugin/gplugin

Merged in freebsd-tweaks (pull request #25)
develop
2019-07-19, Gary Kramlich
0db134500cad
Merged in freebsd-tweaks (pull request #25)

Freebsd only has lgi for lua 5.2, but it's .pc file is named lua-5.2.pc so this checks that one too

Approved-by: Elliott Sales de Andrade
The following individuals have contributed to this project.
Ankit Vani <a@nevitus.org>
EionRobb <eion@robbmob.com>
Elliott Sales de Andrade <quantum.analyst@gmail.com>
Gary Kramlich <grim@reaperworld.com>
Jason Scherer <schereja@gmail.com>
John Bailey <rekkanoryo@rekkanoryo.org>
Mike Ruprecht <cmaiku@gmail.com>
Olaf Hering <olaf@aepfle.de>
Richard Laager <rlaager@pidgin.im>