* dwarf2dbg.c (dwarf2_directive_file): Avoid signed/unsigned warning.

	* dwarf2dbg.c (dwarf2_directive_file): Avoid signed/unsigned warning.

	* write.c (set_symtab): Update bfd_alloc declaration.  Use a temp
	var to ensure bfd_alloc arg is the right type.
	(write_object_file): Cast args of bfd_seek.  Replace bfd_write with
	bfd_bwrite.

	* config/obj-coff.c: Replace calls to bfd_write with calls to
	bfd_bwrite.  Cast args of bfd_seek.

	* config/obj-elf.c (obj_elf_change_section): Avoid signed/unsigned
	warning.

	* config/tc-mn10300.c (set_arch_mach): Make param unsigned.

	* config/tc-tic54x.c (tic54x_mlib): Replace bfd_read call with
	call to bfd_bread.