#1 server-aibo maker error

[zesty]

Hi,
I get this error on trying to make the server-aibo.

../../kernel/ugrammar.y:99: error: conflicting types for `typedef union
YYSTYPE
YYSTYPE'
../../kernel/ugrammar.tab.h:16: error: previous declaration as
`typedef union
YYSTYPE YYSTYPE'
/usr/share/bison.simple: In function `int yyparse(void*)':
/usr/share/bison.simple:432: error: cannot convert `YYSTYPE*' to
`YYSTYPE*' for
argument `1' to `int yylex(YYSTYPE*, void*)'
make[1]: *** [../../kernel/ugrammar.tab.o] Error 1

I am running Mac OSX 10.3.8 and have the latest version of open-r
installed.

Thanks.