ev.c
ev_vars.h
ev_wrap.h
+ ev_select.c only when select backend is enabled (which is by default)
+ ev_poll.c only when poll backend is enabled (disabled by default)
+ ev_epoll.c only when the epoll backend is enabled (disabled by default)
+ ev_kqueue.c only when the kqueue backend is enabled (disabled by default)
+
+ "ev.c" includes the backend files directly when enabled.
To include the libevent compatibility API, also include: