+
+x_io_backend=select
+AC_ARG_WITH(epoll,
+ [ --without-epoll disable epoll support (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(epoll_create, x_io_backend=epoll,
+ AC_MSG_ERROR([Can't enable epoll support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(epoll_create, x_io_backend=epoll)
+ ]
+)
+
+AC_ARG_WITH(kqueue,
+ [ --without-kqueue disable kqueue support (autodetected by default)],
+ [ if test "$withval" != "no"; then
+ if test "$withval" != "yes"; then
+ CFLAGS="-I$withval/include $CFLAGS"
+ CPPFLAGS="-I$withval/include $CPPFLAGS"
+ LDFLAGS="-L$withval/lib $LDFLAGS"
+ fi
+ AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue,
+ AC_MSG_ERROR([Can't enable kqueue support!])
+ )
+ fi
+ ],
+ [
+ AC_CHECK_FUNCS(kqueue, x_io_backend=kqueue)
+ ]
+)
+
+