Contents The libxml2 package contains libxml2 libraries, xmllint, xmlcatalog and xml2-config. Description libxml2 libraries libxml2 libraries provide the functions for programs to parse files that use the XML format. xmllint xmllint parses XML files and outputs reports (based upon options) to detect errors in XML coding. xmlcatalog xmlcatalog allows users to monitor and manipulate XML and SGML catalogs.