From da7e649e799e4d3cce360678d1784923f2f11906 Mon Sep 17 00:00:00 2001
From: Jun Aruga <jaruga@redhat.com>
Date: Thu, 6 Aug 2020 13:52:33 +0200
Subject: [PATCH] Disable LTO, which appear to cause issues with SIGSEV
 handler.

---
 ruby.spec | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ruby.spec b/ruby.spec
index 2b24ef6..e2502e5 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -75,6 +75,10 @@
 %bcond_without hardening_test
 %endif
 
+# LTO appears to cause some issue to SEGV handler.
+# https://bugs.ruby-lang.org/issues/17052
+%define _lto_cflags %{nil}
+
 Summary: An interpreter of object-oriented scripting language
 Name: ruby
 Version: %{ruby_version}
@@ -1189,6 +1193,7 @@ make check TESTS="-v $DISABLE_TESTS" MSPECOPT="-fs $MSPECOPTS"
 %changelog
 * Thu Aug 06 2020 Jun Aruga <jaruga@redhat.com> - 2.6.6-126
 - Fix FTBFS due to libyaml 0.2.5.
+- Disable LTO, which appear to cause issues with SIGSEV handler.
 
 * Thu May 07 2020 Pavel Valena <pvalena@redhat.com> - 2.6.6-125
 - Upgrade to Ruby 2.6.6.