* Add USES= compiler:c++17-lang * Remove USES= python:build * Add LICENSE_FILE * Fix install path of .pc file * Make some minor changes to port Makefile Changelog: https://github.com/libxmlplusplus/libxmlplusplus/releases/tag/5.2.0 PR: 279757 Approved by: portmgr (maintainer timeout, 2+ weeks)