* Fix overly-broad patch on Makefile to add missing .pc file
* Cleanup Makefile
PR\: 221210
Submitted by\: Yuri Victorovich (maintainer)
Reviewed by\: lifanov (mentor), matthew (mentor)
Approved by\: lifanov (mentor), matthew (mentor)
MFH: 2017Q3
Differential Revision\: https://reviews.freebsd.org/DXXXXX