HarfBuzz

Optionally used in Qt GUI. Configure with -system-harfbuzz or -qt-harfbuzz to avoid.

The sources can be found in qt-everywhere-src-5.11.2/qtbase/src/3rdparty/harfbuzz.

Copyright © 2008,2010  Nokia Corporation and/or its subsidiary(-ies)
Copyright © 2006  Behdad Esfahbod
Copyright © 2005  David Turner
Copyright © 2004,2007,2008,2009,2010  Red Hat, Inc.
Copyright © 1998-2004  David Turner and Werner Lemberg

MIT License.

HarfBuzz was previously licensed under different licenses.  This was
changed in January 2008.  If you need to relicense your old copies,
consult the announcement of the license change on the internet.
Other than that, each copy of HarfBuzz is licensed under the COPYING
file included with it.  The actual license follows:


Permission is hereby granted, without written agreement and without
license or royalty fees, to use, copy, modify, and distribute this
software and its documentation for any purpose, provided that the
above copyright notice and the following two paragraphs appear in
all copies of this software.

IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.

THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.