pgsql-server: PostgreSQL extension makefile framework ("pgxs"), by

Log Message:
-----------
PostgreSQL extension makefile framework ("pgxs"), by Fabien Coelho, with
some massaging by Peter Eisentraut. This is basically a simple
generalization of the existing contrib makefiles.

Modified Files:
--------------
pgsql-server:
GNUmakefile.in (r1.39 -> r1.40)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/GNUmakefile.in.diff?r1=1.39&r2=1.40)
pgsql-server/contrib:
contrib-global.mk (r1.7 -> r1.8)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/contrib/contrib-global.mk.diff?r1=1.7&r2=1.8)
pgsql-server/doc/src/sgml:
xfunc.sgml (r1.84 -> r1.85)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/src/sgml/xfunc.sgml.diff?r1=1.84&r2=1.85)
pgsql-server/src:
Makefile (r1.32 -> r1.33)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/Makefile.diff?r1=1.32&r2=1.33)
Makefile.global.in (r1.189 -> r1.190)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/Makefile.global.in.diff?r1=1.189&r2=1.190)
pgsql-server/src/bin/pg_config:
Makefile (r1.6 -> r1.7)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pg_config/Makefile.diff?r1=1.6&r2=1.7)
pg_config.sh (r1.9 -> r1.10)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/bin/pg_config/pg_config.sh.diff?r1=1.9&r2=1.10)
pgsql-server/src/utils:
Makefile (r1.20 -> r1.21)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/utils/Makefile.diff?r1=1.20&r2=1.21)

Added Files:
-----------
pgsql-server/config:
Makefile (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/config/Makefile?rev=1.1&content-type=text/x-cvsweb-markup)
pgsql-server/src/makefiles:
Makefile (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/makefiles/Makefile?rev=1.1&content-type=text/x-cvsweb-markup)
pgxs.mk (r1.1)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/makefiles/pgxs.mk?rev=1.1&content-type=text/x-cvsweb-markup)