Enable LTO during build

nodejs.spec

@@ -18,7 +18,8 @@
 
 %bcond_with python3_fixup
 
-# LTO is currently broken on Node.js builds
+# NodeJS uses it's own set of LTO flags, and is generally not compatible
+# with globally enabling them; use the --enable-lto configure flag instead.
 %define _lto_cflags %{nil}
 
 # Heavy-handed approach to avoiding issues with python
@@ -425,6 +426,7 @@ export CFLAGS="%{optflags} ${extra_cflags[*]}" CXXFLAGS="%{optflags} ${extra_cfl
 export LDFLAGS="%{build_ldflags}"
 
 %{__python3} configure.py --prefix=%{_prefix} --verbose \
+           --enable-lto \
            --shared-openssl \
            --shared-zlib \
            --shared-brotli \
@@ -635,6 +637,8 @@ NODE_PATH=%{buildroot}%{_prefix}/lib/node_modules:%{buildroot}%{_prefix}/lib/nod
   Resolves: CVE-2023-30581 CVE-2023-30588 CVE-2023-30589 CVE-2023-30590
 - Replace /usr/etc/npmrc symlink with builtin configuration
   Resolves: rhbz#2222285
+- Enable LTO
+  Resolves: rhbz#1990096
 
 * Tue May 30 2023 Jan Staněk <jstanek@redhat.com> - 1:18.14.2-3
 - Update bundled c-ares to 1.19.1