=> Bootstrap dependency digest>=20010302: found digest-20190127
===> 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 ykpers-1.20.0
Making all in ykcore
gmake[1]: Entering directory '/tmp/security/ykpers/work/yubikey-personalization-1.20.0/ykcore'
  CC       ykcore.lo
  CC       ykstatus.lo
  CC       ykcore_libusb-1.0.lo
  CCLD     libykcore.la
gmake[1]: Leaving directory '/tmp/security/ykpers/work/yubikey-personalization-1.20.0/ykcore'
Making all in .
gmake[1]: Entering directory '/tmp/security/ykpers/work/yubikey-personalization-1.20.0'
  CC       ykpersonalize.o
  CC       ykpers-version.lo
  CC       ykpers.lo
  CC       ykpbkdf2.lo
  CC       ykpers-nojson.lo
  CC       ykpers_lcl.lo
  CC       libhmac_la-hmac.lo
  CC       libhmac_la-usha.lo
  CC       libhmac_la-sha1.lo
  CC       libhmac_la-sha224-256.lo
  CC       libhmac_la-sha384-512.lo
  CC       ykpers-args.lo
  CC       ykchalresp.o
  CC       ykinfo.o
/bin/sh /tmp/security/ykpers/work/yubikey-personalization-1.20.0/build-aux/missing a2x -L --format=manpage -a revdate="Version 1.20.0" --xsltproc-opts="--nonet" ykpersonalize.1.adoc
/tmp/security/ykpers/work/yubikey-personalization-1.20.0/build-aux/missing: a2x: not found
WARNING: 'a2x' is missing on your system.
         You might have modified some files without having the proper
         tools for further handling them.  Check the 'README' file, it
         often tells you about the needed prerequisites for installing
         this package.  You may also peek at any GNU archive site, in
         case some other package contains this missing 'a2x' program.
gmake[1]: *** [Makefile:1417: ykpersonalize.1] Error 127
gmake[1]: *** Waiting for unfinished jobs....
gmake[1]: Leaving directory '/tmp/security/ykpers/work/yubikey-personalization-1.20.0'
gmake: *** [Makefile:947: all-recursive] Error 1
*** Error code 2

Stop.
make[1]: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/security/ykpers
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/security/ykpers