--- configure.orig	2012-11-01 10:31:35.000000000 +0800
+++ configure	2012-11-01 10:32:15.000000000 +0800
@@ -8720,6 +8720,11 @@
 { $as_echo "$as_me:$LINENO: result: $ac_cv_lib_jack_jack_activate" >&5
 $as_echo "$ac_cv_lib_jack_jack_activate" >&6; }
 if test "x$ac_cv_lib_jack_jack_activate" = x""yes; then
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_LIBJACK 1
+_ACEOF
+
+  LIBS="-ljack $LIBS"
   jack_lib_found=true
 fi
 
