#4 patch configure.in check rl_completion_matches

[Richard Brown]

The current configure.in checks for
rl_completion_matches in readline, after it sets
READLINE_LIBDIR to "# -L${READLINE_LIBDIR}" if it is
/lib /usr/lib. This always causes the test to fail on
my computer.

This patch moves the check for rl_compeltion_matches to
before READLINE_LIBDIR is tidied up, and adds a -L in
front of READLINE_LIBDIR, otherwise gcc complains.

This patch is offset against the motif patch i've
already posted, sorry if that's inconvenient.

[Richard Brown]

sqsh-2.1.3-configure.in-old-readline.patch