[Merge] lp:~stgraber/upstart/upstart-prctl into lp:upstart

[James Hunt]

Hi Stéphane,

My only worry is that if a user attempts to build this on a system whose libc is too old, PR_SET_CHILD_SUBREAPER won't be defined.

I think we need some autoconf magic so we can "#ifdef HAVE_CHILD_SUBREAPER".

If we absolutely require SUBREAPER (added to kernel in v3.4), we should update the top-level README for libc+kernel versions too.
-- 
https://code.launchpad.net/~stgraber/upstart/upstart-prctl/+merge/136759
Your team Upstart Reviewers is requested to review the proposed merge of lp:~stgraber/upstart/upstart-prctl into lp:upstart.