=> Bootstrap dependency digest>=20211023: found digest-20220214
=> Checksum BLAKE2s OK for libzmf-0.0.2.tar.xz
=> Checksum SHA512 OK for libzmf-0.0.2.tar.xz
===> Installing dependencies for libzmf-0.0.2nb30
=> Tool dependency libtool-base>=2.4.2nb9: found libtool-base-2.4.7nb1
=> Tool dependency mktools-[0-9]*: found mktools-20220614
=> Tool dependency pkgconf-[0-9]*: found pkgconf-2.3.0
=> Tool dependency cwrappers>=20150314: found cwrappers-20220403
=> Build dependency boost-headers-1.85.*: NOT found
=> Verifying /nonexistent for ../../devel/boost-headers
make[1]: don't know how to make /nonexistent. Stop

make[1]: stopped in /usr/pkgsrc/devel/boost-headers
*** Error code 2

Stop.
make: stopped in /usr/pkgsrc/converters/libzmf