SGML support refactored in F-10?

[Tom Lane]

My package libdbi is apparently failing to build in CVS HEAD:
http://linux.dell.com/files/fedora/FixBuildRequires/mock-results/i386/libdbi-0.8.3-1.fc9.src.rpm/result/build.log

where the failure looks like

Converting programmers-guide.sgml to HTML...
mkdir -p programmers-guide && cd programmers-guide && openjade -t sgml -d ../../doc/include/doc-html.dsl ../../doc/programmers-guide.sgml
openjade:/usr/share/sgml/docbook/sgml-dtd-4.1-1.0-38.fc10/dbcent.mod:54:0:E: cannot find "iso-amsa.gml"; tried "/usr/share/sgml/docbook/sgml-dtd-4.5-1.0-38.fc10/iso-amsa.gml", "/usr/share/sgml/iso-amsa.gml", "/usr/share/xml/iso-amsa.gml"
openjade:/usr/share/sgml/docbook/sgml-dtd-4.1-1.0-38.fc10/dbcent.mod:61:0:E: cannot find "iso-amsb.gml"; tried "/usr/share/sgml/docbook/sgml-dtd-4.5-1.0-38.fc10/iso-amsb.gml", "/usr/share/sgml/iso-amsb.gml", "/usr/share/xml/iso-amsb.gml"
...
openjade:../../doc/example-program.sgml:61:21:W: cannot generate system identifier for general entity "gt"
openjade:../../doc/example-program.sgml:61:21:E: general entity "gt" not defined and no default entity
openjade:../../doc/example-program.sgml:61:23:E: reference to entity "gt" for which no system identifier could be generated
openjade:../../doc/example-program.sgml:61:20: entity was defined here
openjade:../../doc/example-program.sgml:61:45:E: reference to entity "gt" for which no system identifier could be generated

It doesn't know > ???

The identical SRPM builds just fine in F-9.  I speculate that somebody's
refactored the relevant RPMs in F-10, and that I need a new
BuildRequires to make it work in F-10.  I'm not quite sure where to go
looking though.  Any clues?

			regards, tom lane