On Sat, Oct 14, 2006 at 09:04:34PM +0200, Tollef Fog Heen wrote: > Currently, apr chooses whether to use epoll, kqueue, port, select or > poll at build-time. This works quite well if your apr library is only > used on hosts with the same capabilities as the one you built on. > However, if you build on Linux 2.6 and try to use the binaries on > Linux 2.4, they don't work (due to the epoll interface not existing on > 2.4).
Of course, so don't do that. If your lowest supported kernel revision is 2.4, then you have to build on a 2.4 kernel so APR won't use any 2.6 features. Otherwise you have to force particular choices by doing e.g. "export apr_cv_epoll=no" before running configure, to prevent detection of 2.6 features. epoll is not the only 2.6 feature which APR will depend on at runtime if detected at build time, I can think of HAVE_TCP_NODELAY_WITH_CORK also, probably others too. joe
