libvisio is a library and a set of tools for reading and converting MS Visio diagrams. libvisio requires boost, gperf, icu, libwpd, libwpg, libxml2, perl and zlib to build. Most up to date code is available from Git repository at libreoffice.org (https://gerrit.libreoffice.org/gitweb?p=libvisio.git) or the mirror at freedesktop.org (http://cgit.freedesktop.org/libreoffice/contrib/libvisio/) and is currently recommended instead of regular releases. See http://www.freedesktop.org/wiki/Software/libvisio for more information. For convenience of use in third-party projects the library is available under three licenses: GNU GPL 2.1+, GNU Lesser GPL 2.1+ and MPL 1.1+.