diff --git a/configure.ac b/configure.ac
index 45d2157..44808f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,4 @@
-# $Id: configure.ac,v 1.171 2003/10/07 08:37:11 dtucker Exp $
+# $Id: configure.ac,v 1.172 2003/10/07 10:35:57 dtucker Exp $
 
 AC_INIT
 AC_CONFIG_SRCDIR([ssh.c])
@@ -297,6 +297,7 @@
 	CPPFLAGS="$CPPFLAGS -I/usr/local/include"
 	# /usr/ucblib MUST NOT be searched on ReliantUNIX
 	LDFLAGS="$LDFLAGS -L/usr/local/lib"
+	AC_CHECK_LIB(dl, dlsym, ,)
 	IPADDR_IN_DISPLAY=yes
 	AC_DEFINE(USE_PIPES)
 	AC_DEFINE(IP_TOS_IS_BROKEN)