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-rw-r--r--ev.c83
1 files changed, 46 insertions, 37 deletions
diff --git a/ev.c b/ev.c
index 53694cd..602a882 100644
--- a/ev.c
+++ b/ev.c
@@ -79,76 +79,85 @@ extern "C" {
# endif
# endif
-# ifndef EV_USE_NANOSLEEP
-# if HAVE_NANOSLEEP
-# define EV_USE_NANOSLEEP EV_FEATURE_OS
-# else
-# define EV_USE_NANOSLEEP 0
+# if HAVE_NANOSLEEP
+# ifndef EV_USE_NANOSLEEP
+# define EV_USE_NANOSLEEP EV_FEATURE_OS
# endif
+# else
+# undef EV_USE_NANOSLEEP
+# define EV_USE_NANOSLEEP 0
# endif
-# ifndef EV_USE_SELECT
-# if HAVE_SELECT && HAVE_SYS_SELECT_H
+# if HAVE_SELECT && HAVE_SYS_SELECT_H
+# ifndef EV_USE_SELECT
# define EV_USE_SELECT EV_FEATURE_BACKENDS
-# else
-# define EV_USE_SELECT 0
# endif
+# else
+# undef EV_USE_SELECT
+# define EV_USE_SELECT 0
# endif
-# ifndef EV_USE_POLL
-# if HAVE_POLL && HAVE_POLL_H
+# if HAVE_POLL && HAVE_POLL_H
+# ifndef EV_USE_POLL
# define EV_USE_POLL EV_FEATURE_BACKENDS
-# else
-# define EV_USE_POLL 0
# endif
+# else
+# undef EV_USE_POLL
+# define EV_USE_POLL 0
# endif
-# ifndef EV_USE_EPOLL
-# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
+# if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H
+# ifndef EV_USE_EPOLL
# define EV_USE_EPOLL EV_FEATURE_BACKENDS
-# else
-# define EV_USE_EPOLL 0
# endif
+# else
+# undef EV_USE_EPOLL
+# define EV_USE_EPOLL 0
# endif
-# ifndef EV_USE_KQUEUE
-# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
+# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
+# ifndef EV_USE_KQUEUE
# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
-# else
-# define EV_USE_KQUEUE 0
# endif
+# else
+# undef EV_USE_KQUEUE
+# define EV_USE_KQUEUE 0
# endif
-# ifndef EV_USE_PORT
-# if HAVE_PORT_H && HAVE_PORT_CREATE
+# if HAVE_PORT_H && HAVE_PORT_CREATE
+# ifndef EV_USE_PORT
# define EV_USE_PORT EV_FEATURE_BACKENDS
-# else
-# define EV_USE_PORT 0
# endif
+# else
+# undef EV_USE_PORT
+# define EV_USE_PORT 0
# endif
-# ifndef EV_USE_INOTIFY
-# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
+# if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H
+# ifndef EV_USE_INOTIFY
# define EV_USE_INOTIFY EV_FEATURE_OS
-# else
-# define EV_USE_INOTIFY 0
# endif
+# else
+# undef EV_USE_INOTIFY
+# define EV_USE_INOTIFY 0
# endif
-# ifndef EV_USE_SIGNALFD
-# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
+# if HAVE_SIGNALFD && HAVE_SYS_SIGNALFD_H
+# ifndef EV_USE_SIGNALFD
# define EV_USE_SIGNALFD EV_FEATURE_OS
-# else
-# define EV_USE_SIGNALFD 0
# endif
+# else
+# undef EV_USE_SIGNALFD
+# define EV_USE_SIGNALFD 0
# endif
-# ifndef EV_USE_EVENTFD
-# if HAVE_EVENTFD
+# if HAVE_EVENTFD
+# ifndef EV_USE_EVENTFD
# define EV_USE_EVENTFD EV_FEATURE_OS
-# else
-# define EV_USE_EVENTFD 0
# endif
+# else
+# undef EV_USE_EVENTFD
+# define EV_USE_EVENTFD 0
# endif
#endif