{
scm_tc16_thread = scm_make_smob_type ("thread", sizeof (coop_t));
scm_tc16_mutex = scm_make_smob_type ("mutex", sizeof (coop_m));
{
scm_tc16_thread = scm_make_smob_type ("thread", sizeof (coop_t));
scm_tc16_mutex = scm_make_smob_type ("mutex", sizeof (coop_m));