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-rw-r--r--src/lisp.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/lisp.h b/src/lisp.h
index 8adbaea87e9..6967eed2ccd 100644
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -2245,6 +2245,7 @@ extern Lisp_Object Vmocklisp_arguments, Qmocklisp, Qmocklisp_arguments;
extern Lisp_Object Vautoload_queue;
extern Lisp_Object Vdebug_on_error;
extern Lisp_Object Vsignaling_function;
+extern int handling_signal;
/* To run a normal hook, use the appropriate function from the list below.
The calling convention: