why do i get this when running make install at the very end?

thanks

SunOS mknod: Not owner chmod: WARNING: can't access /usr/local/var/lib/stunnel/dev/zero make[2]: *** [install-data-local] Error 1 make[2]: Leaving directory `/stunnel/stunnel-4.20/tools' make[1]: *** [install-am] Error 2 make[1]: Leaving directory `/stunnel/stunnel-4.20/tools' make: *** [install-recursive] Error 1