Based on patch from H. Peter Anvin <hpa@transmeta.com>:
	* objcopy.c (struct section_list): Add copy field.
	(sections_copied): New static variable.
	(copy_options): Add "only-section".
	(copy_usage): Mention -j and --only-section.
	(find_section_list): Initialize copy field.
	(is_strip_section): Check for copying sections.
	(copy_object): Check sections_copied when calling filter_symbols.
	(setup_section): Check for copying sections.
	(copy_section): Likewise.
	(copy_main): Handle -j/--only-section.
	* binutils.texi, objcopy.1: Document -j/--only-section.