ntp: add deterministic support for KPPS interface

ntp checks for presence of sys/timepps.h to determine whether the kernel
supports the RFC 2783 KPPS interface.  Under Linux the pps-tools package
installs this header.  Without this feature the ATOM clock driver does
not work, and other drivers like NMEA have reduced precision.  Remove
the feature non-determinism and increase ntpd capabilities by adding an
explicit dependency.

See: http://doc.ntp.org/4.2.6/kernpps.html

(From meta-openembedded rev: aca94301c8b38a86ab4e851da0ba0007680ea75b)

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com>

diff --git a/meta-openembedded/meta-networking/recipes-support/ntp/ntp.inc b/meta-openembedded/meta-networking/recipes-support/ntp/ntp.inc
index 55926e0..f55a39a 100644 (file)
--- a/meta-openembedded/meta-networking/recipes-support/ntp/ntp.inc
+++ b/meta-openembedded/meta-networking/recipes-support/ntp/ntp.inc
@@ -8,6 +8,8 @@ SECTION = "console/network"
 LICENSE = "NTP"
 LIC_FILES_CHKSUM = "file://COPYRIGHT;md5=fea4b50c33b18c2194b4b1c9ca512670"
 
+DEPENDS = "pps-tools"
+
 INC_PR = "r6"
 
 SRC_URI = "http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/ntp-${PV}.tar.gz \