10.18. Could not find bsd.own.mk - what's wrong?

You didn't install the compiler set, comp.tgz, when you installed your NetBSD machine. Please get it and install it, by extracting it in /:

	tar --unlink -pvx -C / -f .../comp.tgz
  

comp.tgz is part of every NetBSD release, please get the one matching the release you have installed (determine via ``uname -r'').