From ff30db342bde49cd7a39ddca45b04d5ea87e1f76 Mon Sep 17 00:00:00 2001
From: Daan De Meyer <daan.j.demeyer@gmail.com>
Date: Thu, 26 Oct 2023 11:49:08 +0200
Subject: [PATCH] Inherit -mbackchain from redhat-rpm-config

To allow experimenting with -mbackchain based stack unwinding on s390x,
let's make sure -mbackchain is inherited from redhat-rpm-config as well,
similar to how -fno-omit-frame-pointer is inherited as well.
---
 glibc.spec | 1 +
 1 file changed, 1 insertion(+)

diff --git a/glibc.spec b/glibc.spec
index 6cd8b01..7fccd3c 100644
--- a/glibc.spec
+++ b/glibc.spec
@@ -1111,6 +1111,7 @@ rpm_inherit_flags \
 	"-march=z14" \
 	"-march=z15" \
 	"-march=zEC12" \
+	"-mbackchain" \
 	"-mbranch-protection=standard" \
 	"-mcpu=power10" \
 	"-mcpu=power8" \