nessus 2.0.4 install woes

[Bryan Dina]

I am having problems install nessus, and it is due to Bison 1.75 failing
the install... I am building through the ports tree, and here is a
snippit of where it fails:

Making all in doc
makeinfo --no-split   -I .  `test -f 'bison.texinfo' || echo
'./'`bison.texinfo
-o bison.info
bison.texinfo:37: Unknown command `copying'.
bison.texinfo:58: Unmatched `@end'.
bison.texinfo:93: Unknown command `insertcopying'.
makeinfo: Removing output file `bison.info' due to errors; use --force
to preserve.
*** Error code 2

Stop in /usr/ports/devel/bison/work/bison-1.75/doc.
*** Error code 1

Stop in /usr/ports/devel/bison/work/bison-1.75.
*** Error code 1

Stop in /usr/ports/devel/bison/work/bison-1.75.
*** Error code 1

Stop in /usr/ports/devel/bison.
*** Error code 1

Stop in /usr/ports/security/nessus-libnasl.
*** Error code 1

Any suggestions??

Thanks,
Bryan