--- libaitcfg/configure.in	2012/03/30 11:59:11	1.6.4.2
+++ libaitcfg/configure.in	2012/04/02 14:39:02	1.6.4.3
@@ -1,6 +1,6 @@
 #
 # $Author: misho $
-# $Id: configure.in,v 1.6.4.2 2012/03/30 11:59:11 misho Exp $
+# $Id: configure.in,v 1.6.4.3 2012/04/02 14:39:02 misho Exp $
 #
 AC_INIT(libaitcfg, 5.0, misho@elwix.org)
 AC_CONFIG_SRCDIR([src/aitcfg.c])
@@ -20,7 +20,9 @@ CFLAGS="-Wall -O2 -fPIC -I/usr/local/include ${CFLAGS}
 LDFLAGS="-L/usr/local/lib ${LDFLAGS}"
 
 # Checks for libraries.
+AC_CHECK_LIB([pthread], [pthread_mutex_lock])
 AC_CHECK_LIB([aitio], [io_TrimStr])
+AC_CHECK_LIB([aitcrc], [crcFletcher16])
 
 # Checks for header files.