Log Message:
-----------
Add changes to support threads on Win32 native port at some point in the future.
Modified Files:
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pgsql-server/src/interfaces/libpq:
Makefile (r1.109 -> r1.110)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/interfaces/libpq/Makefile.diff?r1=1.109&r2=1.110)