=> Bootstrap dependency digest>=20010302: found digest-20160304
===> 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'.
=> Checksum SHA1 OK for ruby-2.1.10.tar.bz2
=> Checksum RMD160 OK for ruby-2.1.10.tar.bz2
=> Checksum SHA512 OK for ruby-2.1.10.tar.bz2
===> Installing dependencies for ruby21-fiddle-2.1.10
=> Tool dependency checkperms>=1.1: found checkperms-1.11nb1
=> Build dependency cwrappers>=20150314: found cwrappers-20170112
=> Full dependency ruby21-base>=2.1.10: found ruby21-base-2.1.10
=> Full dependency libffi>=3.0.11: found libffi-3.2.1nb2
===> Overriding tools for ruby21-fiddle-2.1.10
===> Extracting for ruby21-fiddle-2.1.10
===> Patching for ruby21-fiddle-2.1.10
===> Creating toolchain wrappers for ruby21-fiddle-2.1.10
===> Configuring for ruby21-fiddle-2.1.10
=> Checking for portability problems in extracted files
===>  Running extconf.rb to configure
/usr/pkg/bin/ruby21 extconf.rb --with-opt-dir=/usr/pkg --vendor --enable-pthread
checking for ffi.h... yes
checking for main() in -lffi... yes
checking for sys/mman.h... yes
checking for dlfcn.h... yes
checking for main() in -ldl... no
checking for dlopen()... yes
checking for dlclose()... yes
checking for dlsym()... yes
checking for dlerror()... yes
checking for FFI_STDCALL in ffi.h... yes
checking signedness of size_t... unsigned
creating Makefile