From 29a5fcd60b3738378b66499636a10f96a0f2a474 Mon Sep 17 00:00:00 2001
From: Peter Zhu <peter@peterzhu.ca>
Date: Thu, 5 Jan 2023 14:14:59 -0500
Subject: [PATCH] Add RBIMPL_ATTR_NORETURN to unknown_directive

Fixes a compiler warning about the function unknown_directive:

pack.c:160:1: warning: function 'unknown_directive' could be declared with attribute 'noreturn' [-Wmissing-noreturn]
---
 pack.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pack.c b/pack.c
index f1f474759a..f9b1293c37 100644
--- a/pack.c
+++ b/pack.c
@@ -154,6 +154,7 @@ associated_pointer(VALUE associates, const char *t)
     UNREACHABLE_RETURN(Qnil);
 }
 
+RBIMPL_ATTR_NORETURN()
 static void
 unknown_directive(const char *mode, char type, VALUE fmt)
 {