Fix gc segfault.

diff --git a/src/alloc.c b/src/alloc.c
index 54534f6e61e43d49a5ad4c270c2066c842535f60..2704b680263797f5f82530cbafa4235710417703 100644 (file)
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -5579,7 +5579,6 @@ mark_object (arg)
              = XBUFFER_LOCAL_VALUE (obj);
            mark_object (ptr->thread_data);
             mark_object (ptr->realvalue);
-           obj = BLOCAL_THREAD_DATA (ptr);
            goto loop;
          }