[CMake] toolchain file - cross-compiling windows-amd64->windows-x86

[Juan Sanchez]

>From my brief research, it looks like the Microsoft version of CMake may
have Ninja support.

https://devblogs.microsoft.com/cppblog/cmake-support-in-visual-studio-whats-new-in-2017-15-3-update/


Regards,

Juan

On Tue, Sep 17, 2019 at 1:36 PM Joao Pedro Abreu De Souza <
jp_abreu at id.uff.br> wrote:

> So, only the Visual Studio generator use the Arch option? I try generate
> ninja build, but cmake(3.15.3) and the answer was
>
> ```
> $ cmake -B build -S . -G "Ninja" -A Win32
> CMake Error at CMakeLists.txt:2 (project):
>   Generator
>
>     Ninja
>
>   does not support platform specification, but platform
>
>     Win32
>
>   was specified.
>
>
> CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
> CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
> -- Configuring incomplete, errors occurred!
> See also
> "C:/Users/jpabreu/Desktop/testCMAKE/build/CMakeFiles/CMakeOutput.log".
> ```
>
> Em ter, 17 de set de 2019 às 14:00, Juan Sanchez <juan.e.sanchez at gmail.com>
> escreveu:
>
>> Hello,
>>
>> My impression that targeting 32 bit depends on what generator you are
>> using.
>>
>> https://cmake.org/cmake/help/git-stage/generator/Visual%20Studio%2015%202017.html
>>
>> It looks like cmake now has:
>>
>>    - cmake -G "Visual Studio 15 2017" -A Win32
>>    - cmake -G "Visual Studio 15 2017" -A x64
>>
>> It used to be that the default target platform was Win32, and  you had to
>> specify Win64 in the generator string to target a 64 bit build.  For
>> example with Visual Studio 2015
>>
>>
>> https://cmake.org/cmake/help/git-stage/generator/Visual%20Studio%2014%202015.html
>>
>> For compatibility with CMake versions prior to 3.1, one may specify a
>> target platform name optionally at the end of the generator name. This is
>> supported only for:
>> Visual Studio 14 2015 Win64Specify target platform x64.Visual Studio 14
>> 2015 ARMSpecify target platform ARM.
>>
>>
>> Regards,
>>
>> Juan
>>
>>
>> On Tue, Sep 17, 2019 at 7:18 AM Joao Pedro Abreu De Souza <
>> jp_abreu at id.uff.br> wrote:
>>
>>> cl from visual studio 2017.
>>>
>>> Em ter, 17 de set de 2019 03:26, Stéphane Ancelot <
>>> sancelot at numalliance.com> escreveu:
>>>
>>>> Hi,
>>>>
>>>> That first depends on which compiler you will use ?
>>>>
>>>> Regards,
>>>>
>>>> S.Ancelot
>>>> Le 16/09/2019 à 22:32, Joao Pedro Abreu De Souza a écrit :
>>>>
>>>> Hi guys. I am trying to generate,using cmake, a executable with target
>>>> Windows 32 bits using Windows 64 bits, but cannot find a standard toolchain
>>>> file (I find to Linux, to Android, but can't find to Windows 32 bits) to
>>>> build. Do you know some repository of toolchain files that has Windows 32
>>>> bits from Windows 64 bits? Or maybe someone has a standard toolchain file
>>>> to this type of thing.
>>>>
>>>> Thanks in advance.
>>>>
>>>> --
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