The source from this directory was copied from the vorbis subversion repository using the update.sh script. The only changes made were those applied by update.sh and the addition/update of Makefile.in and moz.build files for the Mozilla build system. The upstream version used was vorbis v1.3.7 (84c02369) from https://gitlab.xiph.org/xiph/vorbis Some files are renamed during the copy to prevent clashes with object file names with other Mozilla libraries.