bug#8562: Emacs 23.1 and later don't work in windows 98

[Eli Zaretskii]

> Date: Fri, 27 May 2011 20:33:33 +0200
> From: oslsachem <oslsachem@gmail.com>
> Cc: 8562@debbugs.gnu.org
> 
> >  unsigned e;
> >  ...
> >  len = GetOutlineTextMetricsW (dc, 0, NULL);
> >  if (len)
> >    {
> >      metrics = (OUTLINETEXTMETRICW *) alloca (len);
> >      if (GetOutlineTextMetricsW (dc, len, metrics))
> >        bcopy (&metrics->otmTextMetrics, &w32_font->metrics,
> >               sizeof (TEXTMETRICW));
> >      else
> >        metrics = NULL;
> >    }
> >  else
> >    e = GetLastError ();
> >
> >  if (!metrics)
> >    {
> >      if (!GetTextMetricsW (dc, &w32_font->metrics))
> >        e = GetLastError ();
> >    }
> >
> > Then compile, step through the code again, and tell what value gets
> > assigned to e.
> 
> http://www.speedyshare.com/files/28673968/Emacs-23.3GDBprintE.txt

> 849    len = GetOutlineTextMetricsW (dc, 0, NULL);
> (gdb) 
> 850    if (len)
> (gdb) 
> 860      e = GetLastError ();
> (gdb) 
> 862    if (!metrics)
> (gdb) p e
> $1 = 120
> (gdb) n
> 864        if (!GetTextMetricsW (dc, &w32_font->metrics))
> (gdb) n
> 865          e = GetLastError ();
> (gdb) n
> 868     w32_font->cached_metrics = NULL;
> (gdb) p e
> $2 = 120
> (gdb) 
> 

120 means "This function is not supported on this system".  Do you
have the Microsoft Layer for Unicode (MSLU) installed on that system?
If you do, you should have UNICOWS.DLL somewhere on Path.

If you have that package installed, can you try compiling a simple
program that just calls these two functions, and run it on the Windows
98 machine to see if they fail in the same way?