/usr/local/share/emacs/site-lisp/site-start.d/appdata-rng-init.el
/usr/local/share/appdata/schema/appdata.rnc
/usr/local/share/appdata/schema/schema-locating-rules.xml
/usr/local/share/appdata/schema/appdata.xsd
/usr/local/share/aclocal/appdata-xml.m4
/usr/local/bin/appdata-validate