More stuff to make it compile on various ports.

src/Makefile.global

src/backend/libpq/hba.c

src/backend/port/sparc_solaris/port-protos.h

src/backend/port/sparc_solaris/port.c

src/backend/port/ultrix4/port-protos.h

src/backend/postmaster/postmaster.c

src/backend/storage/ipc/shmem.c

src/backend/utils/adt/numutils.c

src/backend/utils/cache/relcache.c

src/backend/utils/fmgr/dfmgr.c

src/bin/initdb/initdb.sh

src/include/config.h

src/include/storage/ipc.h

src/include/strdup.h

src/include/utils/exc.h