> At this point I gave up. Maybe all this is part of a Grand Plan,
> but if DF has removed the support for these features present in FreeBSD
> 4 and 5, I would like to know what is supposed to replace them and more
> importantly, which are the steps supposed to be done in order to make
> the ports that use these features to work again with DragonFly.
If I recall correctly, a number of header files were split between
kernel-specific and userland areas. FreeBSD, which the port is designed
for, hasn't been cleaned up this way, so the port breaks. I recall
mention of net-snmp on the lists before, so it may be worth checking to
see if anyone submitted patches that haven't been brought into a dfport
override yet. If you want to work on it more, you can try submitting
changes back to the port maintainer or creating a dfport.
Or, you can run 'pkg_add -r net-snmp'. I have it installed now, though I
haven't explicitly tested it. Trying a package before the port is
generally a good idea - the packages install faster, and you don't have to
worry about a successful build.