Most of the code here is licensed under the LGPL. There are exceptions which have their own licenses, listed below. See comments in those files for more details. util/murmur_hash.cc is under the MIT license. util/string_piece.hh and util/string_piece.cc are Google code and contains its own license. For the rest: Avenue code is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Avenue code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with Avenue code. If not, see .