readline problems

I'm having problems compiling in readline with the current CVS
version, using gcc 2.8.1 on Solaris (SunOS 5.9 Generic sun4u sparc).
The error is the following:

./Modules/readline.c: In function `setup_readline':
./Modules/readline.c:577: `rl_completion_append_character' undeclared
(first use in this function)
./Modules/readline.c:577: (Each undeclared identifier is reported only
once
./Modules/readline.c:577: for each function it appears in.)
./Modules/readline.c: In function `call_readline':
./Modules/readline.c:629: warning: implicit declaration of function
`rl_prep_terminal'

Is my version of readline too old? (Not sure exactly how old it is,
but the last year listed in the copyright notice is 1992 ;})

If the problem is that it is too old -- is there a reason why Python
isn't compatible with it anymore? (It worked before...)

-- 
Magnus Lie Hetland
http://hetland.org