- Update devel/yaml-cpp to 0.6.1
- This new version drops dependency on boost-libs
- Fix openxcom to build with this new version [1]
- Add explicit dependency on boost to net-mgmt/openbmp, now that yamp-cpp does not pull that in for it [2]
Approved by: pizzamig [2],
Maintainer timeout [1]
Differential Revision: https://reviews.freebsd.org/D14155