bug#6546: win32 grep/shell utf-8 encoding

[Laimonas Vėbra]

Juanma Barranquero wrote:
> On Thu, Jul 22, 2010 at 16:11, Laimonas Vėbra<laimonas.vebra@gmail.com>  wrote:
>
> > That means you are using gnu-win32 grep. Some older (2.5.4) and newer
> > (2.6.3) cygwin greps won't work.
>
> Sorry, I missed that in your original report.
>
> Did you try adding an entry to `process-coding-system-alist'?

The problem is not here. I can change the encoding of the command string 
(which is passed to external cygwin apps) using
coding-system-for-write. It works (converted correctly utf-8->cp1257, 
cp1251, etc), but it doesn't help, because of the way the args (command 
line) are passed/transcoded through the winapi (CreateProcessA) and 
cygwin layer.
This bug is related to bug#6705 (there are detailed description of 
what's happening)