Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Till now wrappers for all the polling mechanisms available on
the given platform were compiled, although only one of them
was used. This patch compiles just the used one. This can
make libzmq binary more concise.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

The problem was that RLIMIT_NOFILE can be set to RLIM_INIFINITY
(and that appears to be default on AIX) which caused 0MQ to fail.
Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Martin Sustrik <sustrik@250bpm.com>

Signed-off-by: Mikko Koppanen <mkoppanen@php.net>