Add files:
	kernel.h
	qemudbg_init.in
	test-cmdtok.in
	test-export_envvar.in
	test-fill_arg.in
	test-find_envvar.in
	test-find_events.in
	test-itoa.in
	test-strcmp.in
	test-strcpy.in
	test-strlen.in
	test-strncmp.in
	unit_test.c
	unit_test.h

	reference from rtenv-automation

Add 'check' in Makefile.
	use GDB AUTOMATION