* ehopt.c: New file.
* as.h (enum _relax_state): Add rs_cfa.
(check_eh_frame, eh_frame_estimate_size_before_relax): Declare.
(eh_frame_relax_frag, eh_frame_convert_frag): Declare.
* read.c (emit_expr): Call check_eh_frame.
* write.c (cvt_frag_to_fill): Handle rs_cfa.
(relax_segment): Likewise.
* Makefile.am: Rebuild dependencies.
(GAS_CFILES): Add ehopt.c.
(GENERIC_OBJS): Add ehopt.o.
* doc/internals.texi (Frags): Document rs_cfa.
* as.c (show_usage): Mention --traditional-format.
(parse_args): Accept --traditional-format.
* as.h (flag_traditional_format): Declare.
* output-file.c (output_file_create): If flag_traditional_format,
set BFD_TRADITIONAL_FORMAT on stdoutput.
* doc/as.texinfo, doc/as.1: Document --traditional-format.