libpgtcl undefined symbol error with pgaccess-0.76

Now that I have libpgtcl compiled and installed I tried pgaccess-0.76
and got the following error:

/usr/libexec/ld.so: Undefined symbol "_pgresStatus" in wish8.0:/usr/local/pgsql/lib/libpgtcl.so.1.0

Presumably this results from the following line in
interfaces/libpgtcl/pgtclCmds.c, which is the only reference to
pgresStatus in that directory:

pgtclCmds.c:538: Tcl_AppendResult(interp, pgresStatus[PQresultStatus(result)], 0);

Is this the result of some new changes to libpgtcl or should I be
including another library to resolve this? It seems that we should
make the 6.3 distribution work with pgaccess since it is often
referred to as a useful graphical interface on these lists.

Cheers,
Brook