The Makefile for OpenSSH on Solaris is broken due to a missing bl3 file in
the skey package.  This file is only included for Solaris and Darwin:

# s/key support, enabled on Darwin and Solaris. NetBSD s/key has 4 args
# (4: sslen) to skeychallenge instead of 3, so disable s/key support.
#
.if ${OPSYS} == "Darwin" || ${OPSYS} == "SunOS"
.  include "../../security/skey/buildlink3.mk"
CONFIGURE_ARGS+=	--with-skey=${BUILDLINK_PREFIX.skey}
.elif ${OPSYS} == "NetBSD"
#CONFIGURE_ARGS+=	--with-skey=/usr
CONFIGURE_ARGS+=	--without-skey
.else
CONFIGURE_ARGS+=	--without-skey
.endif
-- 
Ben Secrest <blsecres@ssdtgsm.com>