Brought in NEOSOFT's port to i386_solaris

src/Makefile.global

src/backend/port/i386_solaris/Makefile.inc

src/backend/port/i386_solaris/machine.h

src/backend/port/i386_solaris/port-protos.h

src/backend/port/i386_solaris/port.c

src/backend/port/i386_solaris/rusagestub.h

src/backend/storage/ipc.h

src/backend/storage/ipc/ipc.c

src/backend/storage/lmgr/proc.c

src/backend/utils/adt/float.c

src/backend/utils/adt/nabstime.c

src/mk/port/postgres.mk.i386_solaris