help with installing port kde3

[ALIAS]

so i updated my ports with cvs then i installed xfree4 from port then i tried 
to install kde3 from port too, took about a day and a half until some error 
came up with bison-1.75 the work/bison-1.75/doc/bison.texinfo has some errors 
in it with unknown commands copying and insertcopying and unmatched @end 
command or something like that and i didn't know how to fix it and i had to 
reinstall everything again, can someone tell me how to fix the error?