--- libaitsched/configure.in	2014/05/19 22:28:50	1.34.2.4
+++ libaitsched/configure.in	2019/01/14 15:58:50	1.42
@@ -1,8 +1,8 @@
 #
 # $Author: misho $
-# $Id: configure.in,v 1.34.2.4 2014/05/19 22:28:50 misho Exp $
+# $Id: configure.in,v 1.42 2019/01/14 15:58:50 misho Exp $
 #
-AC_INIT(libaitsched, 5.2, misho@elwix.org)
+AC_INIT(libaitsched, 6.6, misho@elwix.org)
 AC_CONFIG_SRCDIR([src/aitsched.c])
 AC_CONFIG_HEADERS([inc/config.h])
 
@@ -37,7 +37,7 @@ AC_TYPE_SIZE_T
 
 # Checks for library functions.
 AC_FUNC_MALLOC
-AC_CHECK_FUNCS([clock_gettime memset strerror timer_create timer_settime timer_delete])
+AC_CHECK_FUNCS([clock_gettime memset strerror timer_create timer_settime timer_delete strlcat strlcpy])
 
 DEBUG=no
 AC_MSG_CHECKING(Debug Build)
@@ -69,18 +69,39 @@ AC_ARG_ENABLE(aio,
 		esac ],)
 AC_MSG_RESULT($AIO)
 
-KQSUP=yes
+AC_DEFINE(NO_SUPPORT, 0, [select support])
+AC_DEFINE(KQ_SUPPORT, 1, [kqueue support])
+AC_DEFINE(EP_SUPPORT, 2, [epoll support])
+
+AC_DEFINE(SUP_ENABLE, KQ_SUPPORT, [support type])
+
+EPSUP=no
+AC_MSG_CHECKING(epoll support)
+AC_ARG_ENABLE(epoll,
+	[  --enable-epoll          Enable epoll support (only under Linux) ],
+	[ EPSUP=$enableval
+		case "$enableval" in
+			yes)
+				AC_DEFINE(SUP_ENABLE, EP_SUPPORT, [support type])
+				KQSUP=no
+				;;
+			*)
+				KQSUP=yes
+				;;
+	 	esac ], [ KQSUP=yes ])
+AC_MSG_RESULT($EPSUP)
+
 AC_MSG_CHECKING(kqueue support)
 AC_ARG_ENABLE(kqueue,
 	[  --disable-kqueue        Disable kqueue support ],
 	[ KQSUP=$enableval
 		case "$enableval" in
-			yes)
-				AC_DEFINE(KQ_ENABLE,, [Enable kqueue support])
+			no)
+				AC_DEFINE(SUP_ENABLE, NO_SUPPORT, [support type])
 				;;
 			*)
 				;;
-	 	esac ], [ AC_DEFINE(KQ_ENABLE,, [Enable kqueue support]) ])
+	 	esac ], )
 AC_MSG_RESULT($KQSUP)
 
 KQ_EVENTS=24
@@ -90,20 +111,6 @@ 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
-			yes)
-				AC_DEFINE(EP_ENABLE,, [Enable epoll support])
-				;;
-			*)
-				;;
-	 	esac ],)
-AC_MSG_RESULT($EPSUP)
 
 AC_CONFIG_FILES([Makefile
                  inc/Makefile