* as.c (emulation_name): Remove unused static variable.

	* as.c (emulation_name): Remove unused static variable.
	(default_emul_bfd_name): Add return NULL to avoid warning.
	* ecoff.c (ecoff_stab): Remove unused variables name and
	name_end.
	* frags.c (frag_new): Remove unused variable tmp.
	* hash.c (hash_grow): Parenthesize + within <<.
	(hash_print_statistics): Use %lu, not %d, to print unsigned
	long variables.
	* messages.c: Include "libiberty.h".
	(fprint_value): Add cast to avoid printf warning.
	(sprint_value): Likewise.
	* read.c: Include "ecoff.h".
	(emit_expr): Add casts to avoid printf warnings.
	* read.h: Use extern for function declarations.
	(pop_insert): Declare.
	* stabs.c: Include "ecoff.h".
	* subsegs.c (subseg_set_rest): Remove unused variables tmp,
	former_last_fragP, and new_fragP.
	* subsegs.h (subsegs_print_statistics): Declare.
	* symbols.c (debug_verify_symchain): Change macro to discard
	arguments.
	* write.c (dump_section_relocs): Likewise.
	* write.h: Use extern for function declarations.
	(write_print_statistics): Declare.
	* config/e-mipsecoff.c (mipsecoff_bfd_name): Return NULL to avoid
	warning.
	* config/e-mipself.c (mipself_bfd_name): Likewise.
	* config/obj-elf.h (elf_ecoff_set_ext): Declare.