Need to make sure we can compartmentalize node build tools. Pretty sure they're
doing stuff outside the pkgsrc env.

- This package has known vulnerabilities, please investigate and fix if possible:
   CVE-2015-4093, CVE-2015-9056, CVE-2016-10365, CVE-2016-10366,
   CVE-2016-1000219, CVE-2016-1000220, CVE-2017-8439, CVE-2017-8440, CVE-2017-8452
