diff -r 7839ad2ef0e5 -r 2910a8ca0d92 config.h.in
--- a/config.h.in	Sun Apr 04 16:41:05 2010 +0300
+++ b/config.h.in	Wed Apr 07 21:11:20 2010 +0300
@@ -4,6 +4,12 @@
 
 #cmakedefine HAVE_LM_CONNECTION_UNREGISTER_REPLY_HANDLER
 
+#include <mcabber/config.h>
+
+#if MCABBER_BRANCH_EXPERIMENTAL && MCABBER_API_VERSION >= 23
+#  define HAVE_CMD_ID
+#endif
+
 #define PROJECT_VERSION ( "${PROJECT_VERSION}" )
 
 #endif