extern tree simplify_builtin (tree, int);
extern tree c_strlen (tree, int);
extern tree std_gimplify_va_arg_expr (tree, tree, tree *, tree *);
-extern tree ind_gimplify_va_arg_expr (tree, tree, tree *, tree *);
/* In convert.c */
extern tree strip_float_extensions (tree);
extern void build_common_tree_nodes_2 (int);
extern tree build_nonstandard_integer_type (unsigned HOST_WIDE_INT, int);
extern tree build_range_type (tree, tree, tree);
+extern HOST_WIDE_INT int_cst_value (tree);
+extern tree tree_fold_gcd (tree, tree);
extern bool fields_compatible_p (tree, tree);
extern tree find_compatible_field (tree, tree);