science/hdf5 should be upgraded to 1.12, but some ports are not compatible with this version, and it has been suggested to repocopy the actual port to science/hdf5-110. PR 251894 proposes a patch to do that, and an exp-run has been launched to detect the incompatibilities. Unfortunately, your port converters/wkhtmltopdf failed: see http://package18.nyi.freebsd.org/data/121amd64-default-foo/2021-01-20_21h30m48s/logs/errors/wkhtmltopdf-0.12.6.log Could you please propose a patch, either to fix it with 1.12 or to switch to hdf5-110?
I have no idea where the dependency on hdf5 comes into play. The log under the link you provided does not seem to reference hdf5 ? I am aware that there are ports-builder builds that fail currently (because I get the fail mails), but I do not yet have an idea why they fail.
Well, if this a false-positive, let's close this PR.
Closing because reference to hdf5 is not found.