Copyright holders of the liblwgeom library (files in src/liblwgeom):

Copyright (C) 2004-2015 Sandro Santilli <strk@kbt.io>
Copyright (C) 2008-2011 Paul Ramsey <pramsey@cleverelephant.ca>
Copyright (C) 2008 Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
Copyright 2015 Nicklas Avén <nicklas.aven@jordogskog.no>
Copyright 2017 Darafei Praliaskouski <me@komzpa.net>
Copyright 2001-2006 Refractions Research Inc.
Copyright 2015 Daniel Baston <dbaston@gmail.com>
Copyright 2009 David Skea <David.Skea@gov.bc.ca>
Copyright 2010 Olivier Courtin <olivier.courtin@oslandia.com>
Copyright 2011 Kashif Rasul <kashif.rasul@gmail.com>
Copyright (C) 1984, 1989-1990, 2000-2015 Free Software Foundation, Inc.
Copyright 2010-2012 Oslandia
Copyright 2006 Corporacion Autonoma Regional de Santander
Originally written by: Klaus Förster <klaus@svg.cc> Refactored by: Olivier Courtin (Camptocamp)
Copyright 2011-2016 Arrival 3D, Regina Obe
Copyright (C) 2006 Mark Leslie <mark.leslie@lisasoft.com>
Copyright 2002 Thamer Alharbash