[Pgpool-committers] pgpool - pgpool-II: Fixed configure error if libpq version is 7.4.x.

[User Y-asaba]

Log Message:
-----------
Fixed configure error if libpq version is 7.4.x. 7.4 does not have
PQprepare(). So when version is 7.4, pgpool uses PREPARE statement
instead of PQprepare().

Modified Files:
--------------
    pgpool-II:
        pool_query_cache.c (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_query_cache.c.diff?r1=1.2&r2=1.3)
        pool_system.c (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/pool_system.c.diff?r1=1.2&r2=1.3)
        configure.in (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgpool/pgpool-II/configure.in.diff?r1=1.4&r2=1.5)