... which also resulted in problems with atomic instruction code not
being detected.

commit 87c8f47 fixed missing mutex
definition, but did not do so via the macros originally intended for
this purpose. It still was very useful, as the patch made omkafka
compile on systems without atomic operations. And did so without
causing any real overhead.

Nevertheless this commit now adjust to use the rsyslog-core intended
way of doing things.

can be considered cosmetic, but we really want a clean compile

…ting dynstats usage to it

Create support for unsigned 32-bit atomic arithmetic