About SVN bindings ------ can not use svn_client_diff_summarize in Perl

at least in Perl, the SVN::Client::diff_summarize can not be invoke( it
reports illegal argument error).
i find the problem lies in that the "svn_client_diff_summarize_func_t" type
lacks the corresponding
SWIG declaration( compared with "svn_log_message_receiver")
since i am new to SWIG and Perl, i can not get to a ideal solution yet. I
just manual edited the
swig/perl/native/svn_client.c,
swig/perl/native/Core.pm,
swig/libsvn_swig_perl/swigutil_pl.c to get it worked.
But this is obvious a temporary solution, is there any plan for a more
complete language bindings?

-- 
James Fang