make build fails on 19.curses

[Bryan Hundven <bryan_(_at_)_darkstar_(_dot_)_livid_(_dot_)_org>]

I have even tried to set SKIPDIR=/usr/src/lib/libocurses/PSD.doc
--------------------problem with make build-------------------------
$ cd /usr/src
$ nice make build
...(omitted stuff)...
===> libocurses/PSD.doc
install -c -o root -g bin -m 444  Makefile Master appen.A appen.B
appen.C c_macros doc.I doc.II doc.III  doc.IV ex1.c ex2.c fns.doc
intro.0 intro.1 intro.2 intro.3  intro.4 intro.5 intro.6 life.c macros
twinkle1.c twinkle2.c  win_st.c /usr/share/doc/psd/19.curses
install: Target: /usr/share/doc/psd/19.curses
*** Error code 71

Stop in /usr/src/lib/libocurses/PSD.doc (line 47
of /usr/share/mk/bsd.doc.mk).
*** Error code 1

Stop in /usr/src/lib/libocurses.
*** Error code 1

Stop in /usr/src/lib.
*** Error code 1

Stop in /usr/src (line 72 of Makefile).
--------------------problem with make build-------------------------

I have googled, and found nothing except the SKIPDIR tip.

-- 
Bryan Hundven <bryan_(_at_)_darkstar_(_dot_)_livid_(_dot_)_org>