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