http://www.freebsd.org/cgi/query-pr.cgi?pr=146328

http://berklix.com/~jhs/src/bsd/fixes/FreeBSD/ports/gen/textproc/xmlcharent/Makefile.REL=ALL.diff

Avoid this error:
cd /usr/ports/textproc/xmlcharent ; make reinstall
===>   Generating temporary packing list
/bin/mkdir -p /usr/local/share/xml/xmlcharent
install  -o root -g wheel -m 444 /usra/ftp/pri/host/fire/usr/ports/textproc/xmlcharent/work/*.ent /usra/ftp/pri/host/fire/usr/ports/textproc/xmlcharent/files/catalog /usra/ftp/pri/host/fire/usr/ports/textproc/xmlcharent/files/catalog.xml /usr/local/share/xml/xmlcharent
/usr/local/bin/xmlcatmgr -sc /usr/local/share/sgml/catalog.ports add CATALOG /usr/local/share/xml/xmlcharent/catalog
xmlcatmgr: entry already exists for `/usr/local/share/xml/xmlcharent/catalog' of type `CATALOG'
*** Error code 1

The Makefile is quite different in FreeBSD-10.0 & 10.1, so this patch will not
apply, hopefully its not needed.

*** 8.0-RELEASE/ports/textproc/xmlcharent/Makefile	Wed May  5 14:30:18 2010
--- new-generic/ports/textproc/xmlcharent/Makefile	Wed May  5 14:30:52 2010
***************
*** 32,38 ****
  	${MKDIR} ${XMLDIR}
  	${INSTALL_DATA} ${WRKSRC}/*.ent\
  		${FILESDIR}/catalog ${FILESDIR}/catalog.xml ${XMLDIR}
! 	${XMLCATMGR} -sc ${CATALOG_PORTS_SGML} add CATALOG ${XMLDIR}/catalog
! 	${XMLCATMGR} -c ${CATALOG_PORTS_XML} add nextCatalog ${XMLDIR}/catalog.xml
  
  .include <bsd.port.mk>
--- 32,38 ----
  	${MKDIR} ${XMLDIR}
  	${INSTALL_DATA} ${WRKSRC}/*.ent\
  		${FILESDIR}/catalog ${FILESDIR}/catalog.xml ${XMLDIR}
! 	-${XMLCATMGR} -sc ${CATALOG_PORTS_SGML} add CATALOG ${XMLDIR}/catalog
! 	-${XMLCATMGR} -c ${CATALOG_PORTS_XML} add nextCatalog ${XMLDIR}/catalog.xml
  
  .include <bsd.port.mk>