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Date: Mon, 28 Sep 2020 18:23:39 +0300
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From: Eli Zaretskii <eliz@gnu.org>
To: Christian Biesinger <cbiesinger@google.com>
Cc: simon.cook@embecosm.com, gdb@sourceware.org
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 (message from Christian Biesinger on Mon, 28 Sep 2020 17:17:49 +0200)
Subject: Re: Unable to build GDB on Windows
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> From: Christian Biesinger <cbiesinger@google.com>
> Date: Mon, 28 Sep 2020 17:17:49 +0200
> Cc: simon.cook@embecosm.com, Reuben Thomas via Gdb <gdb@sourceware.org>
> 
> > OTOH, if you build on Windows before 7, the produced binary will be
> > able to run on newer versions of Windows by dynamically loading
> > bcrypt.dll (when available) at run time, and using a fallback
> > otherwise.
> 
> Hmm that sounds odd, usually the way the Windows SDK works is that
> this only depends on what you #define, not what you build on
> (especially _WIN32_WINNT)

Well, that's true, but how many will use "CPPFLAGS=-D_WIN32_WINNT=..."
when configuring GDB?  The default is buried somewhere in the MinGW
headers, and guess what it is?