It's scm_t_cond, not scm_t_condvar.

diff --git a/libguile/threads.c b/libguile/threads.c
index dcd91af..f6762c9 100644 (file)
--- a/libguile/threads.c
+++ b/libguile/threads.c
@@ -145,7 +145,7 @@ scm_init_threads (SCM_STACKITEM *i)
   scm_tc16_thread = scm_make_smob_type ("thread", 0);
   scm_tc16_mutex = scm_make_smob_type ("mutex", sizeof (scm_t_mutex));
   scm_tc16_condvar = scm_make_smob_type ("condition-variable",
-                                        sizeof (scm_t_condvar));
+                                        sizeof (scm_t_cond));
                                         
 #include "libguile/threads.x"
   /* Initialize implementation specific details of the threads support */