From 867066aa537d7b5e9a242e6ab9e5caf7f06758c8 Mon Sep 17 00:00:00 2001
From: Aram Sargsyan <aram@isc.org>
Date: Thu, 15 Aug 2024 10:28:40 +0000
Subject: [PATCH] Add -Wno-psabi to CFLAGS for x86 (32-bit) builds

GCC 11.1+ emits a note during compilation when there are 64-bit
atomic fields in a structure, because it fixed a compiler bug
by changing the alignment of such fields, which caused ABI change.

Add -Wno-psabi to CFLAGS for such builds in order to silence the
warning. That shouldn't be a problem since we don't expose our
structures to the outside.
---
 configure.ac | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/configure.ac b/configure.ac
index 738443a42f..c3e189d4b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -133,6 +133,9 @@ AC_COMPILE_IFELSE(
   [],
   [STD_CFLAGS="$STD_CFLAGS -Wno-stringop-overread"])
 
+# Silence GCC 11.1+ note about the changed alignment, see GL #4841
+AS_CASE([$target_cpu],[i?86],[STD_CFLAGS="$STD_CFLAGS -Wno-psabi"])
+
 STD_LDFLAGS=""
 
 # ... except in test code