* Makefile.am (ehopt.o): Add struc-symbol.h.

	* Makefile.am (ehopt.o): Add struc-symbol.h.
	* Makefile.in: Regenerated.
	* ehopt.c: Include struc-symbol.h.
	(check_eh_frame): For very small O_constant DW_CFA_advance_loc4
	create correct DW_CFA_advance_loc.  Handle O_subtract only
	for code alignment factor 1, otherwise handle O_divide or
	O_right_shift of O_subtract and O_constant.
	(eh_frame_estimate_size_before_relax): Always divide by ca.
	(eh_frame_convert_frag): Likewise.

	* dw2gencfi.c (output_cfi_insn): Scale DW_CFA_advance_loc1,
	DW_CFA_advance_loc2 and DW_CFA_advance_loc4 outputs.