Disabling LTO for now

Got many "Too many open files" without this change.

Resolves: rhbz#2118567

llvm.spec

@@ -77,7 +77,7 @@
 
 Name:		%{pkg_name}
 Version:	%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:~rc%{rc_ver}}
-Release:	1%{?dist}
+Release:	2%{?dist}
 Summary:	The Low Level Virtual Machine
 
 License:	NCSA
@@ -259,12 +259,12 @@ mv %{cmake_srcdir} cmake
 
 %build
 
-%ifarch s390 s390x
+#ifarch s390 s390x
 # Fails with "exceeded PCRE's backtracking limit"
 %global _lto_cflags %nil
-%else
-%global _lto_cflags -flto=thin
-%endif
+#else
+#global _lto_cflags -flto=thin
+#endif
 
 %ifarch s390 s390x %{arm} %ix86
 # Decrease debuginfo verbosity to reduce memory consumption during final library linking
@@ -632,6 +632,9 @@ fi
 %endif
 
 %changelog
+* Mon Dec 05 2022 Konrad Kleine <kkleine@redhat.com> - 15.0.6-2
+- Disabling LTO for now
+
 * Mon Dec 05 2022 Konrad Kleine <kkleine@redhat.com> - 15.0.6-1
 - Update to 15.0.6