ports/115967: enable chrooted dhcpd on the FreeBSD 7.x

[Eygene Ryabinkin]

Patch was not recognised as the patch by the Web interface, so
I am quoting it properly.
--- isc-dhcpd.in.patch begins here ---
--- files/isc-dhcpd.in.orig	2007-08-31 16:57:04.000000000 +0400
+++ files/isc-dhcpd.in	2007-08-31 16:58:15.000000000 +0400
@@ -354,12 +354,15 @@
 				err 1 "dhcpd_devfs_enable and dhcpd_makedev_enable" \
 				      "are mutually exclusive. enable only one!"
 			fi
+			# mount_devfs disappeared in FreeBSD 7.
+			if test `uname -r | cut -c 1` -le 6; then
 			if checkyesno dhcpd_devfs_enable &&
 			   ! ( type mount_devfs ) > /dev/null 2>&1; then
 				warn "dhcpd_devfs_enable disabled" \
 				     "-- not available"
 				dhcpd_devfs_enable=NO
 			fi
+			fi
 			if checkyesno dhcpd_makedev_enable &&
 			   ! [ -x ${__dhcpd_devdir}/MAKEDEV ]; then
 				warn "dhcpd_makedev_enable disabled" \
--- isc-dhcpd.in.patch ends here ---
-- 
Eygene