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-rw-r--r--Src/signals.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/Src/signals.c b/Src/signals.c
index e2587dc72..9e05add09 100644
--- a/Src/signals.c
+++ b/Src/signals.c
@@ -72,6 +72,10 @@ mod_export int queueing_enabled, queue_front, queue_rear;
 mod_export int signal_queue[MAX_QUEUE_SIZE];
 /**/
 mod_export sigset_t signal_mask_queue[MAX_QUEUE_SIZE];
+#ifdef DEBUG
+/**/
+mod_export int queue_in;
+#endif
 
 /* Variables used by trap queueing */