I was able to patch Zeek 3.0.0 to compile on OpenBSD 6.6 with the attached patches. [zeek-3.0.0-openbsd-Source.cc.patch.txt](https://github.com/zeek/zeek/files/3769444/zeek-3.0.0-openbsd-Source.cc.patch.txt)
I was able to patch Zeek 3.0.0 to compile on OpenBSD 6.6 with the attached patches.
zeek-3.0.0-openbsd-Source.cc.patch.txt