1 files changed, 1 insertions, 0 deletions

diff --git a/src/lisp.h b/src/lisp.h
index 6b31be48a6b..1b1d2fd572e 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -2470,6 +2470,7 @@ extern struct window *allocate_window P_ ((void));
 extern struct frame *allocate_frame P_ ((void));
 extern struct Lisp_Process *allocate_process P_ ((void));
 extern int gc_in_progress;
+extern int abort_on_gc;
 extern Lisp_Object make_float P_ ((double));
 extern void display_malloc_warning P_ ((void));
 extern int inhibit_garbage_collection P_ ((void));