netbsd error: x11-links-0.42 requires X headers to be installed

if you use base x11 then possibly you didn't
(2:44:47 AM) phadthai: install the xcomp set
(2:44:47 AM) phadthai: 05:28 in which case you could untar it using tar xzpf xcomp.tgz -C /
(2:44:47 AM) phadthai: 05:28 (-p flag important)

(2:46:50 AM) phadthai: the_unmaker: the xcomp.tgz file should also be found in sets from i386 4.0.1 at ftp://ftp.netbsd.org/
(2:47:13 AM) the_unmaker: untar?
(2:47:14 AM) phadthai: to /, with -p flag
(2:47:19 AM) phadthai: with tar right