Re: Building on Windows

[Richard Sharpe <realrichardsharpe () gmail com>]

On Wed, Nov 13, 2019 at 9:11 AM Graham Bloice
<graham.bloice () trihedral com> wrote:
> On Wed, 13 Nov 2019 at 16:52, Richard Sharpe <realrichardsharpe () gmail com> wrote:
> > On Wed, Nov 13, 2019 at 8:45 AM Graham Bloice
> > <graham.bloice () trihedral com> wrote:
> > > On Wed, 13 Nov 2019 at 16:07, Richard Sharpe <realrichardsharpe () gmail com> 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)
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