Removed PORTNAME_. Use OS version only.

src/Makefile.global

src/backend/utils/Gen_fmgrtab.sh

src/bin/monitor/monitor.c

src/bin/pg4_dump/common.c

src/bin/pg_dump/common.c

src/bin/pg_dump/pg_dump.c

src/include/c.h

src/include/storage/buf_internals.h

src/include/storage/ipc.h

src/include/utils/array.h

src/include/utils/builtins.h

src/include/utils/exc.h

src/include/utils/memutils.h

src/include/utils/nabstime.h

src/interfaces/libpq/Makefile

src/interfaces/libpq/fe-connect.c

src/interfaces/libpq/libpq-fe.h