* libnlm.h (struct nlm_backend_data): New fields

	* libnlm.h (struct nlm_backend_data): New fields
	optional_prefix_size, nlm_backend_object_p, nlm_write_prefix,
	nlm_set_public_section, nlm_get_public_offset.  Removed unused
	nlm_write_reloc field.  Changed nlm_write_import to remove
	unnecessary symbol argument.  Renamed nlm_write_externals to
	nlm_write_external, and changed cound argument from bfd_vma to
	bfd_size_type.
	(nlm_optional_prefix_size, nlm_backend_object_p_func,
	nlm_write_prefix_func, nlm_set_public_section_func,
	nlm_get_public_offset_func): New accessor macros.
	(nlm_write_reloc_func): Removed.
	(nlm_write_external_func): Adjusted for field renaming.
	* nlm32-i386.c (nlm_i386_write_import): Renamed from
	nlm_i386_write_reloc.  Removed old nlm_i386_write_import which
	just called old nlm_i386_write_reloc.
	(nlm_i386_write_external): Renamed from nlm_i386_write_externals.
	Declared.  Changed second argument from bfd_vma to bfd_size_type.
	(nlm32_i386_backend): Adjusted for changes to fields and names.
	* nlm32-sparc.c (nlm_sparc_mangle_relocs): Removed unused,
	ifdeffed out code.
	(nlm_sparc_write_import): Removed second argument.
	(nlm_sparc_write_external): Renamed from
	nlm_sparc_write_externals.  Changed second argument from bfd_vma
	to bfd_size_type.
	(nlm32_sparc_backend): Adjusted for changes to fields and names.
	* nlmcode.h: Removed some unused code.
	(nlm_object_p): Don't destroy tdata pointer.  Call
	backend_object_p function if it exists.
	(nlm_slurp_symbol_table): Removed unused variable rcount.  Call
	set_public_section_func if it exists instead of checking
	NLM_HIBIT.
	(nlm_compute_section_file_positions): Account for
	optional_prefix_size.
	(nlm_write_object_contents): Account for optional_prefix_size.
	Removed useless variable write_reloc_func.  Changed declaration
	and call of write_import_func.  Call write_prefix_func if it
	exists.  Removed unused variables len and temp.  Call
	get_public_offset_func if it exists rather than setting NLM_HIBIT.