Thread: pgsql: Punt when trying to build with threaded Python on FreeBSD.

Log Message:
-----------
Punt when trying to build with threaded Python on FreeBSD.

Also cut back on excessive use of *** to decorate configure error messages.
If it's an error message, you are sure to see it without any decoration.

Modified Files:
--------------
    pgsql:
        configure (r1.513 -> r1.514)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.diff?r1=1.513&r2=1.514)
        configure.in (r1.482 -> r1.483)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.in.diff?r1=1.482&r2=1.483)
    pgsql/config:
        python.m4 (r1.13 -> r1.14)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/config/python.m4.diff?r1=1.13&r2=1.14)