https://github.com/StanfordLegion/legion/pull/1461

From 6165e09b8d990bd5c6baa7b7a487b6757d89d3e3 Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Tue, 18 Apr 2023 06:54:38 +0100
Subject: [PATCH] Fix build with GCC 13

GCC 13 (as usual for new compiler releases) shuffles around some internal includes so some
are no longer transitively included.

See https://gnu.org/software/gcc/gcc-13/porting_to.html.

Bug: https://bugs.gentoo.org/895564
--- a/runtime/realm/utils.h
+++ b/runtime/realm/utils.h
@@ -27,6 +27,7 @@
 #include <vector>
 #include <map>
 #include <cassert>
+#include <cstdint>
 #include <sstream>
 
 namespace Realm {