Group is

#if defined(NEW_CM)
#if (SMLNJ_VERSION * 100 + SMLNJ_MINOR_VERSION >= 11029)
        (* standard basis *)
        $/basis.cm

        (* Compiler *)
	$smlnj/compiler.cm

	(* standard library *)
	$/smlnj-lib.cm

	(* ml-yacc *)
	$/ml-yacc-lib.cm

	(* pretty printer library *)
	$/pp-lib.cm
#else
        (* standard basis *)
	basis.cm

        (* Compiler *)
        host-compiler.cm

	(* standard library *)
	smlnj-lib.cm

	(* ml-yacc *)
	ml-yacc-lib.cm

	(* pretty printer library *)
        pp-lib.cm
#endif
#else
	(* standard library *)
	smlnj-lib.cm

	(* ml-yacc *)
	ml-yacc-lib.cm

	(* pretty printer library *)
        pp-lib.cm
#endif

        (* configuration *)
        ../variants/sources.cm

	(* utilitities *)
	util/old-pp.sml
	util/ascii.sml
	util/sourcemap-sig.sml
	util/sourcemap.sml
	util/error-sig.sml
	util/error.sml

	(* lexer and parser *)
	grammar/tdefs.sml
        grammar/tokentable.sml
	grammar/c.lex

	parser-sig.sml
        parser.sml
	parse-tree-sig.sml	
	parse-tree.sml

        (* extensions *)
#if (defined(d))
        extensions/d/parse-tree-ext-sig.sml
        extensions/d/parse-tree-ext.sml        
	grammar/d.grm
#else
        extensions/c/parse-tree-ext-sig.sml
        extensions/c/parse-tree-ext.sml        
	grammar/c.grm
#endif