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AC_SYS_DEV_POLL([ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
This macro tests for the presence of /dev/poll support in the build environment. It checks that the needed structure (dvpoll) is available, with the standard fields. /dev/poll is most often seen under Solaris.
Note that it does not attempt to actually open /dev/poll -- you should test for errors when you open it and then fall back to poll() if it is unavailable.
http://autoconf-archive.cryp.to/ac_sys_dev_poll.m4
Copyright © 2008 Dave Benson <daveb@ffem.org>
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