=> Bootstrap dependency digest>=20211023: found digest-20220214
===> Skipping vulnerability checks.
WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Building for ocaml-bin_prot-0.14.1
File "src/dune", line 4, characters 44-55:
4 |  (preprocess (pps ppx_sexp_conv ppx_compare ppx_optcomp))
                                                ^^^^^^^^^^^
Error: Library "ppx_optcomp" not found.
Hint: try:
  dune external-lib-deps --missing --profile release -j 4 @install
*** Error code 1

Stop.
make[1]: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/devel/ocaml-bin_prot
*** Error code 1

Stop.
make: stopped in /amd/pkgsrc/CHROOT/P/pkgsrc/devel/ocaml-bin_prot