This 'awk' source is directly downloaded from the Plan 9 source http://cm.bell-labs.com/sources/plan9/sys/src/cmd/awk/ as such, it's copyright is held by Lucent Technologies and distributed under the Lucent Public License version 1.02 [http://www.opensource.org/licenses/lucent1.02.php]. Modifications were made by Jeff Sickel in order to build using Plan 9 from User Space [https://9fans.github.io/plan9port/] to the following files: mkfile re.c