cd /usr/pkgsrc/pkgtools/pkg_install
   make clean
   now update the files in this directory from
   ftp://ftp.netbsd.org/pub/NetBSD/packages/pkgsrc/pkgtools/pkg_install/
   now do
   make install

Shouldn't "make clean; make; make install" work (or just skip the
plain make since the install target will do that anyway)?  I.e.,
shouldn't the correct stuff be automatically fetched without needing
to do it manually?  I thought that is what I always do, anyway.

Cheers,
Brook