Upstream sources (unmodified tarballs, checksums in build/wasm.sh):
https://dev-www.libreoffice.org/src/libmspub-0.1.5.tar.xz
https://dev-www.libreoffice.org/src/librevenge-0.0.6.tar.bz2
https://zlib.net/zlib-1.3.2.tar.gz
https://archives.boost.io/release/1.86.0/source/boost_1_86_0.tar.bz2

libmspub and librevenge: Mozilla Public License 2.0 (librevenge also LGPL-2.1+). Our files in build/glue and build/patches: MPL-2.0.
