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Re: operating-system-release is nil on win10


From: Eli Zaretskii
Subject: Re: operating-system-release is nil on win10
Date: Thu, 20 Feb 2020 16:36:54 +0200

> From: "Yanning Du" <address@hidden>
> Date: Thu, 20 Feb 2020 12:30:23 +0800
> 
> > What is the value of system-configuration and
> > system-configuration-options in that build of Emacs?
> 
> system-configuration is "i686-pc-mingw32"
> 
> system-configuration-options is "--with-modules --with-file-notification=w32 
> --with-gnutls=no
> --prefix=/f/myemacs-26.2-smart-ime-mingw 
> 'CFLAGS=-I/f/build-emacs/libxpm-3.5.8-w32-src/include
> -I/f/build-emacs/libxpm-3.5.8-w32-src/src'"

Then this is expected: 32-bit executables running on 64-bit Windows
systems cannot see the "release" part of the OS version ID, because
the Registry portion available to 32-bit executables doesn't provide
the relevant key.  IOW, this is a general misfeature of MS-Windows
treatment of 3--bit programs as second-class citizens on 64-bit OS.



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