File build-aux/cccl is licensed under the GNU General Public
License, version 2.
+The following files are licensed under the 2-clause BSD license.
+ include/windows/getopt.h
+ lib/getopt_long.c
+
+The following files are licensed under the 3-clause BSD-license
+ include/windows/netinet/icmp6.h
+ include/windows/netinet/ip6.h
+ lib/strsep.c
+
Files under the xenserver directory are licensed on a file-by-file
basis. Refer to each file for details.