i need help on compiling a gnome2 dependency

[karusker]

when i try to compile gnome2, the dependency docbook-sgml-utils comes up, along with skrollkeeper, which refuse to compile correctly. the output is:

...
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1467:42:E: an entity end is not allowed in a token separator that does not follow a token
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1467:42:E: delimiter ")" invalid: only data tag group, model group, element token, "#PCDATA" and token separators are allowed
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1487:47:E: delimiter "|" invalid: only data tag group, model group, element token, "#PCDATA" and token separators are allowed
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1528:6:E: parameter entity "refcomponent.mix" not defined
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1528:23:E: delimiter ")" invalid: only data tag group, model group, element token, "#PCDATA" and token separators are allowed
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1549:6:E: parameter entity "refcomponent.mix" not defined
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1549:23:E: delimiter ")" invalid: only data tag group, model group, element token, "#PCDATA" and token separators are allowed
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1571:5:E: parameter entity "refcomponent.mix" not defined
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1571:22:E: delimiter ")" invalid: only data tag group, model group, element token, "#PCDATA" and token separators are allowed
jade:/usr/share/sgml/docbook/sgml-dtd-3.1/dbhier.mod:1593:3:E: parameter entity "refcomponent.mix" not defined
jade:I: maximum number of errors (200) reached; change with -E option
make[2]: *** [api.html] Error 1
make[2]: Leaving directory `/var/tmp/portage/docbook-sgml-utils-0.6.11/work/docbook-utils-0.6.11/doc/HTML'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/var/tmp/portage/docbook-sgml-utils-0.6.11/work/docbook-utils-0.6.11/doc'
make: *** [all-recursive] Error 1

!!! ERROR: The ebuild did not complete successfully.
!!! Function src_compile, Line -128, Exitcode 2
!!! (no error message)

!!! emerge aborting on /usr/portage/app-text/docbook-sgml-utils/docbook-sgml-utils-0.6.11.ebuild .
what can i do to stop this? what is going on with my system? my brother's newer gentoo system compiles it just fine.