I figured out the answer to the last question I posted concerning the
readline library and Postgres 6.5.1 on a Silicon Graphics machine
running IRIX 6.5.4.
The library to include is /usr/freeware/lib32. It looks like the library
also exists in /usr/freeware/lib, but that one doesn't work with the
Postgres configure for some reason.
> configure --without-CXX --with-libs=/usr/freeware/lib32
--with-include=/usr/freeware/include/readline
-Tony