The programs and libraries are distributed under the GPL-2 and LGPL-2.1
licenses. Each file should contain a copyright header describing which
license that applies to it.

List of used licenses:

 - GPL-2 (see file LICENSE.GPL-2)
 - LGPL-2.1 (see file LICENSE.LGPL-2.1)
 - BSD-3 (see file LICENSE.BSD-3)

The upstream waf build system, which includes the following files:
 - the toplevel waf script,
 - all files under waflib/
are distributed under the BSD-3 license.

The wscript files are distributed under the GPL-2.