From: Boris Ranto <branto@redhat.com>
Date: Tue, 3 Aug 2021 08:11:58 +0000 (+0200)
Subject: rpm: Re-enable LTO on supported systems
X-Git-Tag: v17.1.0~1183^2~3
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=381507a31c4740bfc75dff8f13026df89e0ccdf8;p=ceph.git

rpm: Re-enable LTO on supported systems

We can now use LTO when building ceph. The symver issue was fixed by
using the gcc __symver__ attribute. The systems that support it can now
re-enable LTO.

Fixes: https://tracker.ceph.com/issues/40060
Signed-off-by: Boris Ranto <branto@redhat.com>
---

diff --git a/ceph.spec.in b/ceph.spec.in
index 4d4082394d4..b5e7435344a 100644
--- a/ceph.spec.in
+++ b/ceph.spec.in
@@ -1235,9 +1235,11 @@ This package provides Ceph default alerts for Prometheus.
 %autosetup -p1 -n @TARBALL_BASENAME@
 
 %build
-# LTO can be enabled as soon as the following GCC bug is fixed:
-# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48200
+# Disable lto on systems that do not support symver attribute
+# See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48200 for details
+%if ( 0%{?rhel} && 0%{?rhel} < 9 ) || ( 0%{?suse_version} && 0%{?suse_version} <= 1500 )
 %define _lto_cflags %{nil}
+%endif
 
 %if 0%{with seastar} && 0%{?rhel}
 . /opt/rh/gcc-toolset-9/enable