Disable LTO on i686 due to OOM

Resolves: rhbz#2188418

lldb.spec

@@ -4,7 +4,7 @@
 
 Name:		lldb
 Version:	%{lldb_version}
-Release:	2%{?dist}
+Release:	3%{?dist}
 Summary:	Next generation high-performance debugger
 
 License:	Apache-2.0 WITH LLVM-exception OR NCSA
@@ -66,6 +66,11 @@ The package contains the LLDB Python module.
 
 %build
 
+%ifarch %ix86
+# Linking liblldb.so goes out of memory even with ThinLTO and a single link job.
+%global _lto_cflags %nil
+%endif
+
 %cmake  -GNinja \
 	-DCMAKE_BUILD_TYPE=RelWithDebInfo \
 	-DCMAKE_SKIP_RPATH:BOOL=ON \
@@ -127,6 +132,9 @@ rm -f %{buildroot}%{python3_sitearch}/six.*
 %{python3_sitearch}/lldb
 
 %changelog
+* Tue Jun 06 2023 Nikita Popov <npopov@redhat.com> - 16.0.1-3
+- Disable LTO on i686 due to OOM
+
 * Fri May 05 2023 Nikita Popov <npopov@redhat.com> - 16.0.1-2
 - Build with LTO