COPYING

Unless otherwise specified, wimlib and all programs and scripts distributed with
it may be redistributed and/or modified under the terms of the GNU General
Public License; either version 3 of the License, or (at your option) any later
version.  See COPYING.GPLv3.

However, the following exception is granted.  When not prohibited by conflict
with a third-party software license, you may opt to redistribute and/or modify
the library portion of wimlib under the terms of the GNU Lesser General Public
License; either version 3 of the License, or (at your option) any later version.
See COPYING.LGPLv3.

The following paragraph is informational only.  The above exception is known to
be relevant for the third-party library "libntfs-3g", which is licensed GPLv2+.
On UNIX-like systems, wimlib can optionally be compiled with libntfs-3g support.
However, a binary copy of wimlib that was compiled without libntfs-3g support
need not be affected by the libntfs-3g license (for example).