or download this
"The installed system version of libxml2 2.9.4 is not compatible with
+XML::LibXML (and probably buggy)!"
...
# Failed test 'xs'
...
# testalienjPkRO/test.xs:5:10: fatal error: 'libxml/parser.h' file
+ not found
# #include <libxml/parser.h>
# ^~~~~~~~~~~~~~~~~>