--- libaitsched/configure.in	2014/04/27 16:22:58	1.34.2.1
+++ libaitsched/configure.in	2014/05/19 22:13:54	1.34.2.2
@@ -1,6 +1,6 @@
 #
 # $Author: misho $
-# $Id: configure.in,v 1.34.2.1 2014/04/27 16:22:58 misho Exp $
+# $Id: configure.in,v 1.34.2.2 2014/05/19 22:13:54 misho Exp $
 #
 AC_INIT(libaitsched, 5.2, misho@elwix.org)
 AC_CONFIG_SRCDIR([src/aitsched.c])
@@ -90,6 +90,20 @@ AC_ARG_WITH(kq_events, 
 	[ KQ_EVENTS=$withval ], KQ_EVENTS=32)
 AC_DEFINE_UNQUOTED(KQ_EVENTS, $KQ_EVENTS, [ How many kqueue events can scheduling at one time ])
 AC_MSG_RESULT($KQ_EVENTS)
+
+EPSUP=no
+AC_MSG_CHECKING(epoll support)
+AC_ARG_ENABLE(epoll,
+	[  --enable-epoll          Enable epoll support (only under Linux) ],
+	[ EPSUP=$enableval
+		case "$enableval" in
+			no)
+				AC_DEFINE(EP_ENABLE,, [Enable epoll support])
+				;;
+			*)
+				;;
+	 	esac ],)
+AC_MSG_RESULT($EPSUP)
 
 AC_CONFIG_FILES([Makefile
                  inc/Makefile