From 8b5e54712a1efd1bf0c08a3d9523ab0c265e344a Mon Sep 17 00:00:00 2001
From: Jason Merrill <jason@redhat.com>
Date: Sat, 14 Sep 2024 11:46:22 +0200
Subject: [PATCH] c++: avoid init_priority warning in system header

We don't want a warning about a reserved init_priority in a system header
even with -Wsystem-headers.

gcc/cp/ChangeLog:

	* tree.cc (handle_init_priority_attribute): Check
	in_system_header_at.
---
 gcc/cp/tree.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gcc/cp/tree.cc b/gcc/cp/tree.cc
index 99088da9cee..f43febed124 100644
--- a/gcc/cp/tree.cc
+++ b/gcc/cp/tree.cc
@@ -5196,7 +5196,8 @@ handle_init_priority_attribute (tree* node,
 
   /* Check for init_priorities that are reserved for
      language and runtime support implementations.*/
-  if (pri <= MAX_RESERVED_INIT_PRIORITY)
+  if (pri <= MAX_RESERVED_INIT_PRIORITY
+      && !in_system_header_at (input_location))
     {
       warning
 	(0, "requested %<init_priority%> %i is reserved for internal use",
-- 
2.47.2