(Already checked in write.c and config/tc-alpha.c, but no log msg went

(Already checked in write.c and config/tc-alpha.c, but no log msg went
out because $CVSROOT was wrong...)

	* write.c (write_object_file): If tc_frob_file is defined, call it
	just before calling obj_frob_file.
	* config/tc-alpha.c (alpha_gp_value): Renamed from gp_value
	(references changed), and made non-static.
	(getExpression): Return void.
	(select_gp_value): Abort if gp_value is non-zero.  Delete call to
	non-existent bfd_set_gp_value.
	(alpha_validate_fix): Function deleted.
	(alpha_frob_symbol): Function deleted.
	(alpha_local_label): Function deleted.
	(alpha_frob_file): Renamed from alpha_end.
	* config/tc-alpha.h (alpha_frob_symbol, alpha_validate_fix,
	alpha_local_label, alpha_end): Declarations deleted.
	(alpha_gp_value, alpha_frob_file): Declare.
	(tc_frob_symbol, TC_VALIDATE_FIX, md_end): Macros deleted.
	(LOCAL_LABEL): Move code here from tc-alpha.c:alpha_local_label.
	(md_convert_frag): Simplified slightly.
	(tc_frob_file): New macro.