libcom32 and libutil are licensed under the MIT license:

## -----------------------------------------------------------------------
##
##   Copyright 2004-2009 H. Peter Anvin - All Rights Reserved
##   Portions Copyright 2009 Intel Corporation; author: H. Peter Anvin
##
##   Permission is hereby granted, free of charge, to any person
##   obtaining a copy of this software and associated documentation
##   files (the "Software"), to deal in the Software without
##   restriction, including without limitation the rights to use,
##   copy, modify, merge, publish, distribute, sublicense, and/or
##   sell copies of the Software, and to permit persons to whom
##   the Software is furnished to do so, subject to the following
##   conditions:
##
##   The above copyright notice and this permission notice shall
##   be included in all copies or substantial portions of the Software.
##
##   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
##   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
##   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
##   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
##   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
##   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
##   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
##   OTHER DEALINGS IN THE SOFTWARE.
##
## -----------------------------------------------------------------------

The files in the sample, modules and libgpl directories are mostly under the
GNU GPL (see the file COPYING in the directory above.)