Here are the cases of NO_WERROR in the ports tree. It seems small enough that this patch isn't needed.

Some native English speaker should review the man page changes. Some sentences don't sound right to me but I'm no native speaker either. Everything else looks good to me.

pointyhats["tijl"]++

I guess you could let dbus create a symlink, but why does Chromium need this id? The comment indicates it is transmitted. Isn't that a privacy violation?

Using our make means more work for me because I would have to keep checking that it continues to work. Our make also parses make.conf again during build and users put all sorts of stuff in there that sometimes breaks things. I don't want to have to deal with support questions caused by that. Upstream uses gmake so we use gmake. It's less risky and therefore less work for me. Other port maintainers may have different opinions about this so please don't let this discourage you from removing gmake from other ports.