fix

qirt.c

@@ -580,7 +580,7 @@ void _qi_add_defer(qi_state_t *state, qi_ssize_t index, qi_defer_t defer,
     return;
   }
 
-  for (ssize_t i = state->scopes->length - 1; i >= 0; i--) {
+  for (qi_ssize_t i = state->scopes->length - 1; i >= 0; i--) {
     qi_scope_t *tmp = qi_list_index(state->scopes, i);
 
     if (i == 0 || tmp->is_sticky) {