🚀 go-pugleaf

	I use mule (multiligual emacs) which is based on
emacs 18.58.
When I typed "C-x C-f" at "+inbox" buffer of mh-e, a prompt
"Find file: ~/" appered on minibuffer.   Emacs reads the
directory "~/Mail/inbox" in spite of minibuffer indicates "~/"
when I type just return.   I tried to find the cause of
this, I found read-file-name has a problem.  This is not a
problem of mule but emacs.

Find-file calls "call-interactively" defind at callint.c.
Then read-file-name is called with set defalt (3rd arg.) by nil.

<callint.c>
339	case 'F':		/* Possibly nonexistent file name. */
340	  args[i] = Fread_file_name (build_string (prompt),
341				     Qnil, Qnil, Qnil);
342	  break;

Next, the value of "defalt" is reset by the directory of
current buffer.

<fileio.c>
2568  if (NULL (defalt))
2569    defalt = current_buffer->filename;

I think these two lines are unnecessary, because there is
the code when "defalt" is nil as shown below.

<fileio.c>
2611  tem = Fstring_equal (val, insdef);
2612  if (!NULL (tem) && !NULL (defalt))
2613    return defalt;
2614  return Fsubstitute_in_file_name (val);

I deleted the lines 2568-2569 of fileio.c.
When emacs displays the prompt "Find file: ~/" and I typed
return, emacs reads the directory "~/" correctly.

Thanks in advance.

--
Toshiaki SHINGU