Disable LTO

libselinux.spec

@@ -4,7 +4,7 @@
 Summary: SELinux library and simple utilities
 Name: libselinux
 Version: 3.0
-Release: 5%{?dist}
+Release: 6%{?dist}
 License: Public Domain
 # https://github.com/SELinuxProject/selinux/wiki/Releases
 Source0: https://github.com/SELinuxProject/selinux/releases/download/20191204/libselinux-3.0.tar.gz
@@ -94,6 +94,14 @@ needed for developing SELinux applications.
 %autosetup -p 2 -n libselinux-%{version}
 
 %build
+# This package uses top level ASM constructs which are incompatible with LTO.
+# Top level ASMs are often used to implement symbol versioning.  gcc-10
+# introduces a new mechanism for symbol versioning which works with LTO.
+# Converting packages to use that mechanism instead of toplevel ASMs is
+# recommended.
+# Disable LTO
+%define _lto_cflags %{nil}
+
 export DISABLE_RPM="y"
 export USE_PCRE2="y"
 
@@ -222,6 +230,9 @@ rm -f %{buildroot}%{_mandir}/man8/togglesebool*
 %{ruby_vendorarchdir}/selinux.so
 
 %changelog
+* Wed Jul  1 2020 Jeff Law <law@redhat.com> - 3.0-6
+- Disable LTO
+
 * Sat May 23 2020 Miro Hrončok <mhroncok@redhat.com> - 3.0-5
 - Rebuilt for Python 3.9