[rsyslog] autoconf support for atomic operations

[Rainer Gerhards]

Hi all,

in my effort to get a clean helgrind output (and to solve the stability
problems that recently showed up, I am going to re-enable support for
atomic operations). Unfortunately, the following post is still correct
and I do not know how to use autotools to check for the ability of
atomic operations:

http://lists.adiscon.net/pipermail/rsyslog/2008-April/000728.html

While the post contains a potentially good pointer to a solution, I do
not know how to apply it to rsyslog ;) If anyone could lend me a helping
hand, that would be great. In the meantime, I'll simply go and make a
--enable-atomic ./configure switch - that's IMHO the best solution given
the current state of affairs.

Rainer