(directory-files): Emulate as Emacs 19 or later to accept the optional fourth

argument for old Emacsen.  It is needed here for compiling other packages.

diff --git a/path-util.el b/path-util.el
index 5ff9826..25db6e5 100644 (file)
--- a/path-util.el
+++ b/path-util.el
@@ -3,7 +3,7 @@
 ;; Copyright (C) 1996,1997 Free Software Foundation, Inc.
 
 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Version: $Id: path-util.el,v 1.1 1997-11-06 15:47:23 morioka Exp $
+;; Version: $Id: path-util.el,v 1.2 1999-08-26 12:32:32 yamaoka Exp $
 ;; Keywords: file detection, install, module
 
 ;; This file is part of APEL (A Portable Emacs Library).
@@ -79,6 +79,25 @@ of load-path instead of default-load-path."
        (add-to-list 'load-path path)
       )))
 
+(condition-case nil
+    (directory-files "." nil nil t)
+  (file-error nil);; unreadable directory.
+  (wrong-number-of-arguments
+   (or (fboundp 'si:directory-files)
+       (fset 'si:directory-files (symbol-function 'directory-files)))
+   ;; This function is also defined in poe-18, but it is needed here
+   ;; for compiling other packages under old Emacsen.
+   (defun directory-files (directory &optional full match nosort)
+     "Return a list of names of files in DIRECTORY.
+There are three optional arguments:
+If FULL is non-nil, return absolute file names.  Otherwise return names
+ that are relative to the specified directory.
+If MATCH is non-nil, mention only file names that match the regexp MATCH.
+If NOSORT is dummy for compatibility.
+\[poe-18.el; EMACS 19 emulating function]"
+     (si:directory-files directory full match))
+   ))
+
 ;;;###autoload
 (defun get-latest-path (pattern &optional all-paths)
   "Return latest directory in default-load-path