gplugin/gplugin

Don't bother looking for libperl on FreeBSD as it's there if the perl executable is installed.

2020-11-20, Gary Kramlich
b9265f30d267
Don't bother looking for libperl on FreeBSD as it's there if the perl executable is installed.

Testing Done:
Tested on debian with and without libperl-dev installed as well as FreeBSD with perl installed.

Reviewed at https://reviews.imfreedom.org/r/246/
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>
Sorvival <sorvival@tutanota.com>