Rebased ref, commits from common ancestor: commit 8a511dad53774693ed818d54d7896e1663942b18 Author: Jon TURNEY <jon.turney at dronecode.org.uk> Date: Sat Sep 13 17:13:44 2014 +0100 Include unistd.h for getpid() Signed-off-by: Jon TURNEY <jon.turney at dronecode.org.uk> Reviewed-by: David Macek <david.macek.0 at gmail.com>