1 files changed, 2 insertions, 1 deletions
diff --git a/signal.c b/signal.c
index 9b4e15eec0..09a77696a2 100644
--- a/signal.c
+++ b/signal.c
@@ -863,7 +863,8 @@ trap_ensure(struct trap_arg *arg)
 }
 #endif
 
-int reserved_signal_p(int signo)
+static int
+reserved_signal_p(int signo)
 {
 /* Synchronous signal can't deliver to main thread */
 #ifdef SIGSEGV