--- deliantra/server/common/shstr.C	2016/11/16 23:41:59	1.50
+++ deliantra/server/common/shstr.C	2018/11/17 23:40:00	1.53
@@ -1,6 +1,7 @@
 /*
  * This file is part of Deliantra, the Roguelike Realtime MMORPG.
  *
+ * Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
  * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
  *
  * Deliantra is free software: you can redistribute it and/or modify it under
@@ -27,13 +28,14 @@
 #include <cstring>
 #include <cstdlib>
 #include <glib.h>
-#include <tr1/unordered_set>
 
-#include "global.h"
+#include <flat_hash_map.hpp>
+
+#include <global.h>
 
 size_t shstr_alloc;
 
-typedef std::tr1::unordered_set <const char *, str_hash, str_equal, slice_allocator<const char *> > HT;
+typedef ska::flat_hash_set<const char *, str_hash, str_equal, slice_allocator<const char *>> HT;
 
 static HT ht;
 static int next_gc;