* symm-nat.c (child_wait, _initialize_symm_nat, kill_inferior): Supply alternate version if ATTACH_DETACH is not defined. * ptx4-nat.c, config/i386/{nm-ptx4.h, ptx4.mh, ptx.mt, ptx4.mt, tm-ptx.h, tm-ptx4.h, xm-ptx.h, xm-ptx4.h}: New files. * configure.in: Recognize i[34]86-sequent-sysv4* host.
but not the others. * symm-tdep.c: Remove exec_file_command. [_SEQUENT_] (ptx_coff_regno_to_gdb, register_addr): New functions. A few miscellaneous cleanups. * symm-nat.c: Renamed from symm-xdep.c. * All symmetry dependent files: Many changes.