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Wireshark-dev: Re: [Wireshark-dev] Building on Windows

From: Richard Sharpe <realrichardsharpe@xxxxxxxxx>
Date: Wed, 13 Nov 2019 09:22:40 -0800
On Wed, Nov 13, 2019 at 9:11 AM Graham Bloice
<graham.bloice@xxxxxxxxxxxxx> wrote:
>
>
> On Wed, 13 Nov 2019 at 16:52, Richard Sharpe <realrichardsharpe@xxxxxxxxx> wrote:
>>
>> On Wed, Nov 13, 2019 at 8:45 AM Graham Bloice
>> <graham.bloice@xxxxxxxxxxxxx> wrote:
>> >
>> > On Wed, 13 Nov 2019 at 16:07, Richard Sharpe <realrichardsharpe@xxxxxxxxx> wrote:
>> >>
>> >> Well,
>> >>
>> >> I seem to have gotten further, but then ran into this:
>> >>
>> >> CMake Error at CMakeLists.txt:91 (message): The PLATFORM environment
>> >> variable ([undefined]) doesn't match the generator platform (win64)
>> >>
>> >> I notice that this page:
>> >>
>> >> https://osqa-ask.wireshark.org/questions/56074/cmake-build-fails
>> >>
>> >> discusses the problem and points to the document I was using, but that
>> >> document does not address the PLATFORM environment variable.
>> >>
>> >> While it did not take long to figure the issue out, perhaps it could
>> >> be pre-empted by adding an additional environment variable to the list
>> >> in the documentation.
>> >>
>> >
>> > The Platform env. variable is set by vcvarsall.bat which is what's actually run to make a Command Prompt a "Visual Studio Command Prompt.  Setting it manually is NOT the correct thing to do.  It appears that there's still something wrong in your environment, as I noted on the Ask question you linked where the OP had a similar issue for reasons that were never resolved as they failed to respond.
>>
>> This is what I see when I start the Developer Command Prompt:
>>
>> **********************************************************************
>> ** Visual Studio 2019 Developer Command Prompt v16.3.9
>> ** Copyright (c) 2019 Microsoft Corporation
>> **********************************************************************
>>
>> C:\Users\Richard.Sharpe.A00187\source\repos>set PLATFORM
>> Environment variable PLATFORM not defined
>>
>
> The preliminary output in the prompt is missing the very important line:
>
> [vcvarsall.bat] Environment initialized for: 'x64'
>
> which shows that vcvarsall.bat was called and set the Platform env. var.  This indicates something still isn't right about your environment.  What do you have in "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\"?

It's all there. If I run the x86_64 Cross Tools Command Prompt for VS
2019 I get this:

[vcvarsall.bat] Environment initialized for: 'x86_x64'

It seems that Microsoft have just muddied the waters a bit.

-- 
Regards,
Richard Sharpe
(何以解憂?唯有杜康。--曹操)(传说杜康是酒的发明者)