--- IO-AIO/configure.ac	2010/12/02 10:04:47	1.3
+++ IO-AIO/configure.ac	2012/04/10 05:01:34	1.5
@@ -1,8 +1,10 @@
-AC_PREREQ(2.59)
 AC_INIT
 AC_CONFIG_SRCDIR([libeio/eio.h])
 AC_CONFIG_HEADERS([libeio/config.h])
 
+AC_PREREQ(2.60)
+AC_USE_SYSTEM_EXTENSIONS
+
 AC_PROG_CC
 
 m4_include([libeio/libeio.m4])