* nlmconv.c (debug, unlink_on_exit): New static variables.

	* nlmconv.c (debug, unlink_on_exit): New static variables.
	(long_options): Add "debug" and "linker".
	(main): Handle -d and -l arguments.  Make command line input and
	output files optional.  Parse the command file before opening the
	BFD's, which requires storing more information in local variables.
	If INPUT names multiple files, link them together.  Use OUTPUT for
	the output file name if not named on command line.
	(show_usage): Changed for new options.
	(link_inputs): New function to automatically invoke linker to
	handle multiple INPUT files.
	(choose_temp_base_try, choose_temp_base, pexecute): New functions,
	mostly copied from gcc/gcc.c.
	* nlmconv.h (input_files, output_file): Declare.
	* nlmheader.y (input_files, output_file): Define.
	(command): Support INPUT with a string_list argument.  Support
	OUTPUT.
	(string_list): Renamed from module_list.
	* Makefile.in (nlmconv.o): Define LD_NAME based on
	program_transform_name.

Fixes PR 3974.