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From:	Achim Gratz <Stromeko AT nexgo DOT de>
To:	cygwin AT cygwin DOT com
Subject:	Re: running self compiled 32 bit binary on 64 bit Windows?
References:	<20180606115005 DOT GA15015 AT rus DOT uni-stuttgart DOT de> <0F7D3B1B3C4B894D824F5B822E3E5A17787FB4BB AT IRSMSX102 DOT ger DOT corp DOT intel DOT com> <3110356010 DOT 20180606204945 AT yandex DOT ru> <20180608131943 DOT GA20898 AT rus DOT uni-stuttgart DOT de>
Date:	Fri, 08 Jun 2018 21:04:45 +0200
In-Reply-To:	<20180608131943.GA20898@rus.uni-stuttgart.de> (Ulli Horlacher's message of "Fri, 8 Jun 2018 15:19:43 +0200")
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Ulli Horlacher writes:
> I have compiled the application with gcc from cygwin.

You've compiled with the native compiler on a 32bit Cygwin, producing a
32bit Cygwin executable.

> It runs without problems on Windows 7 32 bit but on Windows 8 64 bit it
> does not output ANYTHING. No (error) message, nothing.

You will either need to compile natively as a 64bit Cygwin executable,
cross-compile to 64bit Cygwin, or target another cross-compiler at
Windows 64bit or 32bit executables as you deem appropriate.  In all
cases any required runtime DLL need to be provided in the correct format
as well.

> How can I debug it?

There is nothing to debug, this is simply not supposed to work.  Before
you ask, it doesn't work on Windows either (with 32bit Windows
applications) unless the WoW64 subsystem is installed (it _almost_
always is, except in Core and Nano) nor would it work on Linux unless
the 32bit loaders and libraries are installed.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

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