[PATCH weston] compositor: systemd notifications support

[Egor Starkov]

This patch implements systemd sd_notify interface, that allows
weston to utilize systemd monitoring capabilities: notify about
internal state and use watchdog.

More info can be found here:
http://www.freedesktop.org/software/systemd/man/sd_notify.html

The feature is not compiled by default and can be enabled by
configuration flag, so it doesn't unexpectedly change weston's
behaviour.

Egor Starkov (1):
  compositor: systemd notifications support

 Makefile.am          |  10 ++++-
 configure.ac         |  13 ++++++
 src/main.c           |   3 ++
 src/systemd-notify.c | 120 +++++++++++++++++++++++++++++++++++++++++++++++++++
 src/systemd-notify.h |  47 ++++++++++++++++++++
 5 files changed, 192 insertions(+), 1 deletion(-)
 create mode 100644 src/systemd-notify.c
 create mode 100644 src/systemd-notify.h

-- 
1.8.3.1