The mptopdf script does standalone conversion from mpost to PDF, using the supp-* and syst-* files. They also allow native MetaPost graphics inclusion in LaTeX (via pdftex.def) and ConTeXt. They can be used independently of the rest of ConTeXt, yet are maintained as part of it. So in TeX Live we pull them out to this separate package for the benefit of LaTeX users who do not install the rest of ConTeXt. This can be found on CTAN in macros/pdftex/graphics.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.