* configure.in: Add specific case for cris-*-linux-gnu* with

	* configure.in: Add specific case for cris-*-linux-gnu* with
	em=linux.
	* configure: Regenerate.
	* config/tc-cris.c (DEFAULT_CRIS_AXIS_LINUX_GNU): New macro, TRUE
	if TE_LINUX defined, else FALSE.
	(bfd_boolean demand_register_prefix): Set default from
	DEFAULT_CRIS_AXIS_LINUX_GNU.
	(symbols_have_leading_underscore): Similar.
	* config/tc-cris.h (LOCAL_LABELS_DOLLAR): Define to 1.