From Neil Spring:

From Neil Spring:

	use "_U_" in the definitions of "rcsid[]", to eliminate
	complaints about those variables being unused;

	move the definitions after the include of "interface.h", or add
	an include of "interface.h", so that "_U_" is defined.

Include "config.h" before including "tcpdump-stdinc.h" in
"missing/datalinks.c".