patch to unhook libxpg4 and liby from build

[Chris Pressey]

On Sat, 27 Mar 2004 23:26:33 -0800 (PST)
Matthew Dillon <dillon at xxxxxxxxxxxxxxxxxxxx> wrote:

>     Isn't yyerror() is a standard bison/yacc procedure?  Where is
>     yyerror() coming from if not from liby?

It seems to be provided by the program which is using yacc in each case.
I guess the idea was that if the program didn't provide it's own
yyerror(), it could fall back on the one provided by liby.  But none of
ours rely on that.

-Chris