gdb/

gdb/
	* common/signals.c (signals): Move the content to signals.def.
	Include it.  Remove the INDENT comments.

gdb/gdbserver/
	* Makefile.in (signals_def): New.
	(server_h): Append include/gdb/signals.h and signals_def.
	(server.o): Append signals_def.

include/gdb/
	* signals.h (enum target_signal): Move the content to signals.def.
	Include it.
	* signals.def: New file.