* cofflink.c (_bfd_coff_generic_relocate_section): Make
callback decide what goes in .relocs.
* pe[i]-i386.c (TARGET_UNDERSCORE): Define.
* peicode.h (pe_mkobject_hook): Only copy aouthdr if
there is one.
* coffcode.h (coff_bfd_copy_private_symbol_data,
coff_bfd_copy_private_section_data,
coff_bfd_copy_private_bfd_data): ifdef to allow overrides.
* peicode.h (coff_bfd_copy_private_bfd_data): New
(pe_bfd_copy_private_bfd_data): New.
(coff_swap_scnhdr_in): Swap bss size into the right place.
(pe_print_private_bfd_data): Add some newlines.
* coffcode.h (coff_compute_section_file_positions): Keep the
raw size safe.
(coff_write_object_contents): Remember if it's a relocatable
file.
* libcoff-in.h (pe_data_type): New member 'has_reloc_section'
* peicode.h (coff_swap_filehdr_out): Clear not-reloc flag
if relocatable file. Swap out saved raw size.
* Makefile.in (BFD32_BACKENDS): Remove coff-arm.o.
* archures.c (bfd_arch_info_type): Change mach field from long to
unsigned long.
(bfd_lookup_arch): Change machine parameter from long to unsigned
long.
