* configure.host: Add mips64*-*-openbsd*. * configure.tgt: Add mips64*-*-openbsd*. * Makefile.in (ALLDEPFILES): Add mips64obsd-nat.o, mips64obsd-tdep.c. (mips64obsd-nat.o, mips64obsd-tdep.o): New dependecies. * config/mips/obsd64.mh, config/mips/obsd64.mt: New files.