--- libaitio/configure.in	2010/03/09 09:26:27	1.2
+++ libaitio/configure.in	2011/05/03 15:41:00	1.10
@@ -1,8 +1,8 @@
 #
 # $Author: misho $
-# $Id: configure.in,v 1.2 2010/03/09 09:26:27 misho Exp $
+# $Id: configure.in,v 1.10 2011/05/03 15:41:00 misho Exp $
 #
-AC_INIT(libaitio, 1.0, misho@openbsd-bg.org)
+AC_INIT(libaitio, 1.8, misho@elwix.org)
 AC_CONFIG_SRCDIR([src/aitio.c])
 AC_CONFIG_HEADERS([inc/config.h])
 
@@ -19,6 +19,8 @@ AC_SUBST(MKDEP)
 CFLAGS="-Wall -O2 -fPIC -I/usr/local/include ${CFLAGS}"
 LDFLAGS="-L/usr/local/lib ${LDFLAGS}"
 
+AC_CHECK_LIB([crypto], [EVP_CipherInit_ex])
+
 # Checks for header files.
 AC_CHECK_HEADERS([stdlib.h string.h sys/ioctl.h termios.h unistd.h])
 
@@ -45,6 +47,20 @@ AC_ARG_ENABLE(debug,
 				;;
 		esac ],)
 AC_MSG_RESULT($DEBUG)
+
+AIO=no
+AC_MSG_CHECKING(AIO Build)
+AC_ARG_ENABLE(aio,
+	[  --enable-aio            Build library with AIO operations], 
+	[ AIO=$enableval
+		case "$enableval" in
+			yes)
+				AC_DEFINE(AIO_OPS,, [Build library with AIO operations])
+				;;
+			*)
+				;;
+		esac ],)
+AC_MSG_RESULT($AIO)
 
 AC_CONFIG_FILES([Makefile
                  inc/Makefile