This patch enables remote gdb over tcp (as well as the default of remote
gdb over serial ports).

*** gdb/Makefile.in.orig	Wed Jan 15 23:14:11 1997
--- gdb/Makefile.in	Wed Jan 15 23:14:24 1997
***************
*** 210,216 ****
  # part of libiberty) a POSIX interface.  But at least for now the
  # host-dependent makefile fragment might need to use something else
  # besides ser-unix.o
! SER_HARDWIRE = ser-unix.o
  
  # The `remote' debugging target is supported for most architectures,
  # but not all (e.g. 960)
--- 210,216 ----
  # part of libiberty) a POSIX interface.  But at least for now the
  # host-dependent makefile fragment might need to use something else
  # besides ser-unix.o
! SER_HARDWIRE = ser-unix.o ser-tcp.o
  
  # The `remote' debugging target is supported for most architectures,
  # but not all (e.g. 960)
