2017-09-26  Krister Walfridsson  <krister.walfridsson@gmail.com>

	PR target/39570
	* gcc/config/netbsd-protos.h: New file.
	* gcc/config/netbsd.c: New file.
	* gcc/config/netbsd.h (SUBTARGET_INIT_BUILTINS): Define.
	* gcc/config/t-netbsd: New file.
	* gcc/config.gcc (tm_p_file): Add netbsd-protos.h.
	(tmake_file) Add t-netbsd.
	(extra_objs) Add netbsd.o.

From-SVN: r253216