pgsql: Back-port several small portability fixes to get contrib building

Log Message:
-----------
Back-port several small portability fixes to get contrib building
cleanly on AIX in the 8.0 branch.  Rocco Altier

Tags:
----
REL8_0_STABLE

Modified Files:
--------------
    pgsql/contrib/cube:
        Makefile (r1.12 -> r1.12.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/cube/Makefile.diff?r1=1.12&r2=1.12.4.1)
    pgsql/contrib/tsearch2:
        dict.c (r1.6.4.1 -> r1.6.4.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/dict.c.diff?r1=1.6.4.1&r2=1.6.4.2)
        dict_ex.c (r1.3 -> r1.3.8.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/dict_ex.c.diff?r1=1.3&r2=1.3.8.1)
        dict_ispell.c (r1.5 -> r1.5.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/dict_ispell.c.diff?r1=1.5&r2=1.5.4.1)
        dict_snowball.c (r1.3 -> r1.3.8.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/dict_snowball.c.diff?r1=1.3&r2=1.3.8.1)
        dict_syn.c (r1.4 -> r1.4.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/dict_syn.c.diff?r1=1.4&r2=1.4.4.1)
        prs_dcfg.c (r1.5 -> r1.5.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/prs_dcfg.c.diff?r1=1.5&r2=1.5.4.1)
        snmap.c (r1.6 -> r1.6.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/snmap.c.diff?r1=1.6&r2=1.6.4.1)
        ts_cfg.c (r1.11.4.1 -> r1.11.4.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/ts_cfg.c.diff?r1=1.11.4.1&r2=1.11.4.2)
        wparser.c (r1.6.4.1 -> r1.6.4.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wparser.c.diff?r1=1.6.4.1&r2=1.6.4.2)
        wparser_def.c (r1.11 -> r1.11.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wparser_def.c.diff?r1=1.11&r2=1.11.4.1)
    pgsql/src/backend:
        Makefile (r1.107.4.1 -> r1.107.4.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/Makefile.diff?r1=1.107.4.1&r2=1.107.4.2)
    pgsql/src/port:
        getopt_long.c (r1.3 -> r1.3.4.1)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/port/getopt_long.c.diff?r1=1.3&r2=1.3.4.1)