Help with "port upgrade outdated" errors

[Achilles Vassilicos]

During execution of "sudo port upgrade outdeted" I encountered error 
messages shown at the end. Specifically:

1. Errors with various versions of docbook-xml
2. Error with gcc42 telling me to uninstall and reinstall  g95

I don't know how to proceed.

I am running OS X 10.8.2 and Xcode 4.5.2.  Any help would be greatly 
appreciated.
Thanks - Achilles

.................................

--->  Activating docbook-xml-4.2 @5.0_1
Error: org.macports.activate for port docbook-xml-4.2 returned: command 
execution failed
Please see the log file for port docbook-xml-4.2 for details:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-4.2/main.log

--->  Activating docbook-xml-4.1.2 @5.0_1
Error: org.macports.activate for port docbook-xml-4.1.2 returned: 
command execution failed
Please see the log file for port docbook-xml-4.1.2 for details:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-4.1.2/main.log

--->  Activating docbook-xml-4.3 @5.0_1
Error: org.macports.activate for port docbook-xml-4.3 returned: command 
execution failed
Please see the log file for port docbook-xml-4.3 for details:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-4.3/main.log

--->  Activating docbook-xml-4.4 @5.0_1
Error: org.macports.activate for port docbook-xml-4.4 returned: command 
execution failed
Please see the log file for port docbook-xml-4.4 for details:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-4.4/main.log

--->  Activating docbook-xml-4.5 @5.0_1
Error: org.macports.activate for port docbook-xml-4.5 returned: command 
execution failed
Please see the log file for port docbook-xml-4.5 for details:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-4.5/main.log

--->  Activating docbook-xml-5.0 @5.0_1
Error: org.macports.activate for port docbook-xml-5.0 returned: command 
execution failed
Please see the log file for port docbook-xml-5.0 for details:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-5.0/main.log

Error: Unable to open port: gcc42 variant has been deprecated. Uninstall 
g95 and reinstall.

................................................................

....Typical error in log files for doc-xml...
$ cat 
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-4.1.2/main.log

.......
:debug:activate Executing proc-post-org.macports.activate-activate-0
:info:activate xmlcatmgr: entry already exists for 
`/opt/local/share/xml/docbook/4.1.2/catalog.xml' of type `nextCatalog'
:info:activate Command failed: xmlcatmgr -c /opt/local/etc/xml/catalog 
add nextCatalog /opt/local/share/xml/docbook/4.1.2/catalog.xml
:info:activate Exit code: 1
:error:activate org.macports.activate for port docbook-xml-4.1.2 
returned: command execution failed
:debug:activate Error code: NONE
:debug:activate Backtrace: command execution failed
     while executing
"$post $targetname"
:notice:activate Please see the log file for port docbook-xml-4.1.2 for 
details:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_svn.macports.org_trunk_dports_textproc_docbook-xml/docbook-xml-4.1.2/main.log

........