Two modifications: 1. The addition of 2013 to the copyright year range for every file; 2. The use of a single year range, instead of potentially multiple year ranges, as approved by the FSF.
* configure.host (gdb_host_cpu): Handle tilegx*. (gdb_host): Handle tilegx-*-linux*. * tilegx-linux-nat.c: New file. * config/tilegx/linux.mh: New file.