diff --git a/core/apc-compat.php b/core/apc-compat.php
new file mode 100644
index 0000000000..4af4c2fa53
--- /dev/null
+++ b/core/apc-compat.php
@@ -0,0 +1,69 @@
+<?php
+// Copyright (C) 2016 Combodo SARL
+//
+//   This file is part of iTop.
+//
+//   iTop is free software; you can redistribute it and/or modify	
+//   it under the terms of the GNU Affero General Public License as published by
+//   the Free Software Foundation, either version 3 of the License, or
+//   (at your option) any later version.
+//
+//   iTop is distributed in the hope that it will be useful,
+//   but WITHOUT ANY WARRANTY; without even the implied warranty of
+//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//   GNU Affero General Public License for more details.
+//
+//   You should have received a copy of the GNU Affero General Public License
+//   along with iTop. If not, see <http://www.gnu.org/licenses/>
+
+// Emulate the API of APC, over APCU
+// Note: for PHP < 7, this compatibility used to be provided by APCU itself (if compiled with some options)
+//       for PHP 7+, it can be provided by the mean of apcu_bc, which is not so simple to install
+//       The current emulation aims at skipping this complexity
+if (!function_exists('apc_store') && function_exists('apcu_store'))
+{
+	function apc_add($key, $var, $ttl = 0)
+	{
+		return apcu_add($key, $var, $ttl);
+	}
+	function apc_cache_info($cache_type = '', $limited = false)
+	{
+		return apcu_cache_info($limited);
+	}
+	function apc_cas($key, $old, $new)
+	{
+		return apcu_cas($key, $old, $new);
+	}
+	function apc_clear_cache($cache_type = '')
+	{
+		return apcu_clear_cache();
+	}
+	function apc_dec($key, $step = 1, &$success = null)
+	{
+		apcu_dec($key, $step, $success);
+	}
+	function apc_delete($key)
+	{
+		return apcu_delete($key);
+	}
+	function apc_exists($keys)
+	{
+		return apcu_exists($keys);
+	}
+	function apc_fetch($key)
+	{
+		return apcu_fetch($key);
+	}
+	function apc_inc($key, $step = 1, &$success = null)
+	{
+		apcu_inc($key, $step, $success);
+	}
+	function apc_sma_info($limited = false)
+	{
+		return apcu_sma_info($limited);
+	}
+	function apc_store($key, $var, $ttl = 0)
+	{
+		return apcu_store($key, $var, $ttl);
+	}
+}
diff --git a/core/metamodel.class.php b/core/metamodel.class.php
index 37dc27a2b5..ce7e6cc60b 100644
--- a/core/metamodel.class.php
+++ b/core/metamodel.class.php
@@ -22,6 +22,7 @@ require_once(APPROOT.'core/querymodifier.class.inc.php');
 require_once(APPROOT.'core/metamodelmodifier.inc.php');
 require_once(APPROOT.'core/computing.inc.php');
 require_once(APPROOT.'core/relationgraph.class.inc.php');
+require_once(APPROOT.'core/apc-compat.php');
 
 /**
  * Metamodel