Log Message:
-----------
Put undef's before extern declarations that need 'em, per Andrew Dunstan.
Modified Files:
--------------
pgsql/src/include:
port.h (r1.85 -> r1.86)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/port.h.diff?r1=1.85&r2=1.86)