(mark_object) [DEBUG_MOLE]: Add abort at beginning.

diff --git a/src/alloc.c b/src/alloc.c
index e6edea42c95ccff6530dd19ef692226de1b45a85..07775391bfb6dd7c51da9ef401199e401e2dd009 100644 (file)
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -1460,6 +1460,11 @@ mark_object (objptr)
 {
   register Lisp_Object obj;
 
+#ifdef DEBUG_MOLE
+  if (*(int *) ((char *)__builtin_frame_address (0) - 16) == 0)
+    abort ();
+#endif
+
   obj = *objptr;
   XUNMARK (obj);