Tried to build doxygen as a dependency, and found out that the link (http://doxygen.nl/files/doxygen-1.8.15.src.tar.gz) returns a 404. Log: https://poudriere.ygy.io/data/122Ramd64-development/2020-12-28_23h32m24s/logs/errors/doxygen-1.8.15_3,2.log
There is currently a pending bug #242347 that updates the port to the latest version (although as I check the Doxygen website now, I see that a version newer than that has been released as of yesterday). I would advise waiting for that update to happen.
(In reply to Naram Qashat from comment #2) While I understand that updating as per bug #242347 might solve this for now, this leads me to question if the current MASTER_SITE is guaranteed to keep the old version - could switching to Sourceforge [1] be a better option here? [1]: https://sourceforge.net/projects/doxygen/files/
(In reply to Guangyuan Yang from comment #3) Perhaps it would be better to use Sourceforge as a backup for MASTER_SITES for older releases. I do not know how far back the main site's downloads go. I normally have the port updated but this update has been slow to get into the ports tree for whatever reason.
^Triage: Reporter is committer, assign accordingly.
(In reply to Fernando Apesteguía from comment #5) No. This PR will soon be Closed - Overcome by events by PR #242347 (see also).