-NLopt combines several free/open-source nonlinear optimization libraries
-by various authors. See the COPYING files in the subdirectories for the
-original copyright and licensing information of these packages.
+NLopt combines several free/open-source nonlinear optimization
+libraries by various authors. See the COPYING, COPYRIGHT, and README
+files in the subdirectories for the original copyright and licensing
+information of these packages.
+
+The compiled NLopt library, i.e. the combined work of all of the
+included optimization routines, is licensed under the conjunction of
+all of these licensing terms. Currently, the most restrictive terms
+are for the code in the "luksan" directory, which is licensed under
+the GNU Lesser General Public License (GNU LGPL), version 2.1 or
+later (see luksan/COPYRIGHT).
+
+That means that the compiled NLopt library is governed by the terms of
+the LGPL.
+
+---------------------------------------------------------------------------
Other portions of NLopt, including any modifications to the abovementioned
packages, are licensed under the standard "MIT License:"
-Copyright (c) 2007 Massachusetts Institute of Technology
+Copyright (c) 2007-2011 Massachusetts Institute of Technology
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the