Ham Runtime Environment 6 (released under GPL3) See the COPYRIGHT file in the git repo for full details.
This section lists all of the code written by other people - that may or may not want copyright recognition - and why it is needed.
Dirent compatability layer for Windows, version 1.13. Written by Toni Ronkko. The header is a standard on Unix systems but is missing on Windows.
Exception with stacktrace, written by Eric Y. Theriault. Prints a stack trace on error.
SHA, header and c code to make a SHA256 hash.
Decimal Class, header for storing precise decimal numbers.
Tclap, command line parser library.