It occurred to me that Huub wrote in gmane.os.netbsd.ports.x86-64:
> Hi,
>
> I'm building Blender from the latest pkgsrc and get errors. How do I 
> know where or who to send the log? Can't find it in the docs.

See the Makefile; more precisely the contents of the MAINTAINER variable. 
Either that, or file a PR.