=> Bootstrap dependency digest>=20010302: found digest-20121220
===> Skipping vulnerability checks.
WARNING: No /var/db/pkg/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /var/db/pkg fetch-pkg-vulnerabilities'.
===> Building for ruby215-gsl-1.15.3
=> Removing backup files of patch before build
WARNING:  licenses is empty, but is recommended.  Use a license abbreviation from:
http://opensource.org/licenses/alphabetical
WARNING:  open-ended dependency on narray (>= 0.5.9) is not recommended
  if narray is semantically versioned, use:
    add_runtime_dependency 'narray', '~> 0.5', '>= 0.5.9'
WARNING:  See http://guides.rubygems.org/specification-reference/ for help
  Successfully built RubyGem
  Name: gsl
  Version: 1.15.3
  File: gsl-1.15.3.gem
=> Unwrapping files-to-be-installed.