mesa: use LTO and bump xwayland version

my-ostree-os/mesa.spec

@@ -71,7 +71,7 @@ Name:           mesa
 Summary:        Mesa graphics libraries
 %global ver 24.3.4
 Version:        %{lua:ver = string.gsub(rpm.expand("%{ver}"), "-", "~"); print(ver)}
-Release:        14.clang.skylake%{?dist}
+Release:        15.clang.skylake%{?dist}
 License:        MIT AND BSD-3-Clause AND SGI-B-2.0
 URL:            http://www.mesa3d.org
 
@@ -408,11 +408,6 @@ export MESON_PACKAGE_CACHE_DIR="%{cargo_registry}/"
 %rewrite_wrap_file paste
 %endif
 
-# We've gotten a report that enabling LTO for mesa breaks some games. See
-# https://bugzilla.redhat.com/show_bug.cgi?id=1862771 for details.
-# Disable LTO for now
-%define _lto_cflags %{nil}
-
 CFLAGS="$CFLAGS -march=skylake -mtune=skylake -O3" CXXFLAGS="$CXXFLAGS -march=skylake -mtune=skylake -O3" %meson \
   -Dplatforms=x11,wayland \
   -Dosmesa=true \

my-ostree-os/xorg-x11-server-Xwayland.spec

@@ -12,7 +12,7 @@
 Summary:   Xwayland
 Name:      xorg-x11-server-Xwayland
 Version:   24.1.5
-Release:   13.clang.skylake%{?dist}
+Release:   15.clang.skylake%{?dist}
 
 URL:       http://www.x.org
 %if 0%{?gitdate}