Linker error compiling cups-base

[Don Lewis]

On  3 Jan, Frank Seltzer wrote:
> I'm getting this while upgrading cups-base.  Is this a known problem or 
> have I fat-fingered something?
> 
> I don't understand why cups-base is even trying to link with avahi since 
> this option is unchecked:
> 
> OPTIONS_FILE_UNSET+=AVAHI

Is the MDNSRESPONDER option checked?  I think I ran into this before. If
neither option is checked, then cups-base tries to use avahi.  See
<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190865>.  I think the
Makefile should be using OPTIONS_SINGLE instead of OPTIONS_RADIO.