Under windows, ~/.emacs.d/.emacs(.el) is not laoded at startup

[Cheng Gao]

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Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
In /etc/NEWS, line 712-715:
,----
| ** Init file changes
| 
| You can now put the init files .emacs and .emacs_SHELL under
| ~/.emacs.d or directly under ~.  Emacs will find them in either place.
`----
In Linux, it's right. ~/.emacs.d/.eamcs(.el(c)) is loaded. But under
Windows, only ~/.emacs(.el(c)) is loaded. I got confirmation from other
user in #emacs. 
I trust the problem must be in lisp/startup.el with lines 828-834:
,----
|                       (let ((otherfile
|                              (expand-file-name
|                               (file-name-nondirectory user-init-file-1)
|                               (file-name-as-directory
|                                (expand-file-name
|                                 ".emacs.d"
|                                 (file-name-directory user-init-file-1))))))
`----
I suspect that functions file-name-directory-* doesnot take
considerations with Windows environment. But I am too dumb to fix this.
This should be with code in fileio.c.
In GNU Emacs 21.3.50.1 (i386-mingw-nt5.2.3790)
 of 2004-09-15 on DIO
configured using `configure --with-gcc (3.4)'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: CHS
  locale-coding-system: cp936
  default-enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
  display-time-mode: t
  delete-selection-mode: t
  partial-completion-mode: t
  auto-compression-mode: t
  cua-mode: t
  show-paren-mode: t
  auto-image-file-mode: t
  recentf-mode: t
  tool-bar-mode: t
  encoded-kbd-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t
Recent input:
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <menu-bar> <help-menu> 
<report-emacs-bug>
Recent messages:
Loading image-file...done
Loading paren...done
Loading cua-base...done
Loading jka-compr...done
Loading complete...done
Loading delsel...done
Loading time...done
Loading jit-lock...done
Loading cl-macs (compiled; note, source file is newer)...done
Loading emacsbug...done
Date: Fri, 17 Sep 2004 15:22:02 +0800
Message-ID: <address@hidden>