* ecoff.c (ecoff_swap_tir_in): Change input argument to const.

	* ecoff.c (ecoff_swap_tir_in): Change input argument to const.
	(ecoff_swap_tir_out): Likewise.
	(ecoff_swap_rndx_in, ecoff_swap_rndx_out): Likewise.
	(ecoff_slurp_symbolic_info): Add new arguments to correspond to
	read_debug_info entry point in ecoff_debug_swap structure.
	Change all calls.
	* libecoff.h (ecoff_slurp_symbolic_info): Change declaration.
	* ecoffswap.h (ecoff_swap_tir_in, ecoff_swap_tir_out): Declare.
	(ecoff_swap_rndx_in, ecoff_swap_rndx_out): Declare.
	* coff-alpha.c (alpha_ecoff_backend_data): Initialize new
	ecoff_debug_swap fields.
	* coff-mips.c (mips_ecoff_backend_data): Likewise.
	* elf32-mips.c (mips_elf_read_ecoff_info): Undefine READ.
	(mips_elf_ecoff_debug_swap): Initialize new ecoff_debug_swap
	fields.
	* configure.in (bfd_elf32_bigmips_vec): Use ecoff.o and
	ecofflink.o.
	(bfd_elf32_littlemips_vec): Likewise.
	(ecoff_big_vec, ecoff_little_vec): Likewise.
	(ecoffalpha_little_vec): Likewise.
	* Makefile.in (BFD_LIBS): Remove ecoff.o and ecofflink.o.
	(BFD32_BACKENDS): Add ecoff.o and ecofflink.o.