--- a/configure
+++ b/configure
@@ -2503,6 +2503,8 @@ while [ "${1#--}" != "$1" ] ; do
     #
     #   Ignored but provided for compatibility with autoconf
     #
+    disable-ipv6|enable-ipv6)
+	;;
     bindir=*|libdir=*|libexecdir=*|moddir=*)
         ;;
     disable-nls|enable-nls)