--- config.h.in.orig	2012-11-01 13:10:46.000000000 +0800
+++ config.h.in	2012-11-01 13:11:44.000000000 +0800
@@ -34,6 +34,9 @@
 /* Define to 1 if you have the `SM' library (-lSM). */
 #undef HAVE_LIBSM
 
+/* Define to 1 if you have the `jack' library (-ljack). */
+#undef HAVE_LIBJACK
+
 /* Define to 1 if you have the `theora' library (-ltheora). */
 #undef HAVE_LIBTHEORA
 
