* elf32-hppa.c (ELF32_PARISC_SX_SIZE): Define.

	* elf32-hppa.c (ELF32_PARISC_SX_SIZE): Define.
	(ELF32_PARISC_SX_GET, ELF32_PARISC_SX_PUT): Define.
	(symextn_entry): Don't define.
	(symext_chain_size): Change type to bfd_size_type.
	(symextn_contents): Change type to bfd_byte *.
	(elf32_hppa_backend_begin_write_processing): Use
	ELF32_PARISC_SX_SIZE instead of sizeof (symext_entryS).
	(elf32_hppa_size_symext): Likewise.  Also, change type of sizep to
	bfd_size_type *.
	(elf_hppa_tc_make_sections): Cast symextn_contents assignment to
	bfd_byte *.  Use ELF32_PARISC_SX_PUT instead of direct assignment.
	(elf32_hppa_backend_symbol_table_processing): Use
	ELF32_PARISC_SX_SIZE instead of sizeof (symext_entryS).  Use
	ELF32_PARISC_SX_GET insetad of direct assignment.
	(elf32_hppa_read_symext_info): Change type of contents, and its
	assignment cast, to bfd_byte *.  Use ELF32_PARISC_SX_SIZE instead
	of sizeof (symextn_entry).  Use symext_entryS instead of
	symextn_entry.  Use ELF32_PARISC_SX_GET instead of direct
	assignment.