pgbulkload - pgbulkload: Partial support for PGXS, because

Log Message:
-----------
Partial support for PGXS, because nbtree/nbtsort.c is required to build the library.

Modified Files:
--------------
pgbulkload:
README.pg_bulkload (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/README.pg_bulkload.diff?r1=1.2&r2=1.3)
sample_bin.ctl (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/sample_bin.ctl.diff?r1=1.2&r2=1.3)
sample_csv.ctl (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/sample_csv.ctl.diff?r1=1.2&r2=1.3)
pgbulkload/bin:
Makefile (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/Makefile.diff?r1=1.4&r2=1.5)
pg_bulkload.c (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/pg_bulkload.c.diff?r1=1.5&r2=1.6)
pgbulkload/bin/expected:
init.out (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/expected/init.out.diff?r1=1.1&r2=1.2)
pgbulkload/bin/pgut:
pgut.c (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/pgut/pgut.c.diff?r1=1.1&r2=1.2)
pgut.h (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/pgut/pgut.h.diff?r1=1.1&r2=1.2)
pgbulkload/bin/sql:
init.sql (r1.1 -> r1.2)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/bin/sql/init.sql.diff?r1=1.1&r2=1.2)
pgbulkload/lib:
Makefile (r1.2 -> r1.3)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/Makefile.diff?r1=1.2&r2=1.3)
pg_btree.c (r1.4 -> r1.5)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbulkload/pgbulkload/lib/pg_btree.c.diff?r1=1.4&r2=1.5)