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diff --git a/meshmc/libraries/iconfix/internal/qhexstring_p.h b/meshmc/libraries/iconfix/internal/qhexstring_p.h
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+/****************************************************************************
+** SPDX-License-Identifier: LGPL-2.1-or-later
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qglobal.h>
+#include <QtCore/qpoint.h>
+#include <QtCore/qstring.h>
+#include <QtGui/qpolygon.h>
+#include <QtCore/qstringbuilder.h>
+
+#pragma once
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+// internal helper. Converts an integer value to an unique string token
+template <typename T> struct HexString {
+	inline HexString(const T t) : val(t) {}
+
+	inline void write(QChar*& dest) const
+	{
+		const ushort hexChars[] = {'0', '1', '2', '3', '4', '5', '6', '7',
+								   '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
+		const char* c = reinterpret_cast<const char*>(&val);
+		for (uint i = 0; i < sizeof(T); ++i) {
+			*dest++ = hexChars[*c & 0xf];
+			*dest++ = hexChars[(*c & 0xf0) >> 4];
+			++c;
+		}
+	}
+	const T val;
+};
+
+// specialization to enable fast concatenating of our string tokens to a string
+template <typename T> struct QConcatenable<HexString<T>> {
+	typedef HexString<T> type;
+	enum { ExactSize = true };
+	static int size(const HexString<T>&)
+	{
+		return sizeof(T) * 2;
+	}
+	static inline void appendTo(const HexString<T>& str, QChar*& out)
+	{
+		str.write(out);
+	}
+	typedef QString ConvertTo;
+};