* configure.in (sparc-*-aout): Set `em'.

	* configure.in (sparc-*-aout): Set `em'.
	* configure: Regenerated.
	* config/te-sparcaout.h: New file.
	* config/tc-sparc.h (TARGET_BYTES_BIG_ENDIAN): Define.
	Ifdef TE_SPARCOUT define TARGET_FORMAT and SPARC_BIENDIAN.
	* config/tc-sparc.c (INSN_BIG_ENDIAN): New macro.
	(SPECIAL_CASE_{SETSW,SETX}): Define.
	({NOP,OR,FMOVS,SETHI,SLLX,SRA}_INSN): Define.
	(md_begin): Delete setting of `target_big_endian'.
	(output_insn): New function.
	(md_assemble): Rewrite.  Add `setx' support.
	(sparc_ip): Handle `0' operand char.  Recognize setuw, setsw, setx
	special cases.
	(md_atof): Add little endian support.
	(md_number_to_chars): Likewise.
	(md_apply_fix): Likewise.
	(md_longopts): Recognize -EL,-EB ifdef SPARC_BIENDIAN.
	(md_parse_option): Likewise.
	(md_show_usage): Print -EL, -EB ifdef SPARC_BIENDIAN.