The entire source code is GPLv2 except for these files:
* Boost Software License (BSL v1.0)
* src/http/*
* src/web/random_device.cpp
* src/rapidxml/* (dual licensed with MIT/X11 (BSD like))
* MIT/X11 (BSD like)
* examples/wtwithqt/*
* BSD
* src/Wt/Auth/passwdqc.h
* src/Wt/Auth/passwdqc_check.h
* zlib/libpng
* src/web/md5.[ch]
* src/web/base64.h
* SIL OFL 1.1
* resources/font-awesome/font/*
* MIT License
* resources/font-awesome/css/*