* som.c (struct fixup_format): Constify `format'.
(som_hppa_howto_table): Use SOM_HOWTO macro.
(try_prev_fixup, hppa_som_reloc): Decorate unused parameter.
(som_bfd_reloc_type_lookup): Likewise.
(compare_subspaces): Remove unused `count1', `count2'.
(som_begin_writing): Remove unused `total_reloc_size'.
(som_bfd_derive_misc_symbol_info): Decorate unused parameter.
(som_print_symbol, som_bfd_is_local_label_name): Likewise.
(som_set_reloc_info): Constify `cp'. Remove unused `addend'.
(som_find_nearest_line): Decorate unused parameter(s).
(som_sizeof_headers, som_get_symbol_info, som_write_armap): Likewise.
(som_bfd_link_split_section): Likewise.