1 files changed, 10 insertions, 1 deletions

diff --git a/src/eval.c b/src/eval.c
index 1b481663f3d..7790b6638f2 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -1398,7 +1398,16 @@ find_handler_clause (handlers, conditions, sig, data, debugger_value_ptr)
         }
 
       if (wants_debugger (Vstack_trace_on_error, conditions))
-        internal_with_output_to_temp_buffer ("*Backtrace*", Fbacktrace, Qnil);
+        {
+#ifdef __STDC__
+          internal_with_output_to_temp_buffer ("*Backtrace*",
+                                               (Lisp_Object (*) (Lisp_Object)) Fbacktrace,
+                                               Qnil);
+#else
+          internal_with_output_to_temp_buffer ("*Backtrace*",
+                                               Fbacktrace, Qnil);
+#endif
+        }
       if ((EQ (sig_symbol, Qquit)
            ? debug_on_quit
            : wants_debugger (Vdebug_on_error, conditions))