* nlmconv.c (main): Force creation of .bss section. Set up the

	* nlmconv.c (main): Force creation of .bss section.  Set up the
	sections before looking at the symbols.  Move all common symbols
	into .bss section.  Automatically define _edata and _end.  Only
	export symbols in the export list, with multiple prefixes if
	necessary.  Warn if no version.  Always create extended header.
	Set date automatically if not already set.
	(setup_sections): Count size of bss sections.
	(mangle_relocs, i386_mangle_relocs): Accept section argument, and
	take reloc_count as a changeable pointer; changed callers.
	(i386_mangle_relocs): Remove PC relative relocs within a section,
	as they require no adjustment.
	* nlmheader.y: Fixed memory allocation throughout: token STRING is
	now allocated on the heap, and freed if not needed.  Null
	terminated copyright message.  Accept version with only two
	strings.
	(symbol_list_opt): New nonterminal, either symbol_list or empty.
	(symbol_list): Use left recursion to avoid overflowing parser
	stack.
	(yylex): Rearranged beginning of line check.  Accept quoted
	strings using single quotes.  End generic argument at comment
	character or parentheses.
	(string_list_append): Fixed.
	(string_list_append1): New function.