Signed-off-by: Fabian Pflug <[email protected]>
---
 rules/ntp.in   | 12 +++++++++++-
 rules/ntp.make | 10 +++++++++-
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/rules/ntp.in b/rules/ntp.in
index 2d85c8fac..0d80840c2 100644
--- a/rules/ntp.in
+++ b/rules/ntp.in
@@ -97,6 +97,17 @@ config NTP_CRYPTO
        help
          FIXME: This item needs to be documented
 
+config NTP_SNTP
+       bool
+       prompt "build SNTP"
+       help
+         Simple Network Time Protocol is a subset of the Network
+         Time Protocol (NTP). SNTP can be used when the ultimate
+         performance of a full NTP implementation based on
+         RFC 1305 is neither needed nor justified.
+         It is strongly recommended that SNTP be used only at
+         the extremities of the synchronization subnet.
+
 comment "Clock drivers"
 
 config NTP_ALL_CLOCK_DRIVERS
@@ -176,4 +187,3 @@ endif
 
 comment "NTP conflicts with OpenNTPD"
        depends on NTP && OPENNTPD
-
diff --git a/rules/ntp.make b/rules/ntp.make
index 9c6c9555d..429023645 100644
--- a/rules/ntp.make
+++ b/rules/ntp.make
@@ -128,7 +128,7 @@ NTP_CONF_OPT        := \
        --disable-kmem \
        --enable-accurate-adjtime \
        --disable-simulator \
-       --without-sntp \
+       --$(call ptx/wwo, PTXCONF_NTP_SNTP)-sntp \
        --without-ntpsnmpd \
        --$(call ptx/endis, PTXCONF_NTP_SLEW_ALWAYS)-slew-always \
        --$(call ptx/endis, PTXCONF_NTP_STEP_SLEW)-step-slew \
@@ -180,6 +180,14 @@ ifdef PTXCONF_NTP_NTPD
        @$(call install_alternative, ntp, 0, 0, 0644, /etc/ntp-server.conf)
 endif
 
+#      #
+#      # sntp client
+#      #
+ifdef PTXCONF_NTP_SNTP
+       @$(call install_copy, ntp, 0, 0, 0755, -, \
+               /usr/sbin/sntp)
+endif
+
 ifdef PTXCONF_NTP_NTPD_STARTSCRIPT
        @$(call install_alternative, ntp, 0, 0, 0755, /etc/init.d/ntp-server)
 
-- 
2.39.5


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