1 files changed, 1 insertions, 0 deletions
diff --git a/lgc.h b/lgc.h
index 024a4328..4a125634 100644
--- a/lgc.h
+++ b/lgc.h
@@ -154,6 +154,7 @@
 */
 #define GCSTPUSR	1  /* bit true when GC stopped by user */
 #define GCSTPGC		2  /* bit true when GC stopped by itself */
+#define GCSTPCLS	4  /* bit true when closing Lua state */
 #define gcrunning(g)	((g)->gcstp == 0)