--- /usr/portage/net-misc/ntp/ntp-4.2.6_p3.ebuild	2011-06-03 20:01:20.000000000 +0200
+++ /usr/local/portage/net-misc/ntp/ntp-4.2.6_p3.ebuild	2011-07-13 01:39:23.870404884 +0200
@@ -15,7 +15,7 @@
 LICENSE="as-is"
 SLOT="0"
 KEYWORDS="alpha amd64 arm hppa ia64 ~mips ppc ppc64 s390 sh sparc x86 ~sparc-fbsd ~x86-fbsd"
-IUSE="caps debug ipv6 openntpd parse-clocks selinux snmp ssl vim-syntax zeroconf"
+IUSE="caps debug ipv6 mssntp openntpd parse-clocks selinux snmp ssl vim-syntax zeroconf"
 
 DEPEND=">=sys-libs/ncurses-5.2
 	>=sys-libs/readline-4.1
@@ -55,6 +55,7 @@
 		$(use_enable parse-clocks) \
 		$(use_enable ipv6) \
 		$(use_enable debug debugging) \
+		$(use_with mssntp ntp-signd)
 		$(use_with snmp ntpsnmpd) \
 		$(use_with ssl crypto)
 }