[CMake] Cannot get a 64-bit build of MySQL on a 64-bit Windows machine

[Petr Kmoch]

Hi,

when generating a Visual Studio buildsystem with CMake, you can specify the
target architecture. If you don't, the default is 32-bit.

To specify the architecture, either put it into the generator name:

  cmake .. -G "Visual Studio 15 2017 Win64" ....

or specify just the architecture using -A:

  cmake .. -A Win64 ....

See description of -G and -A in CMake docs:
https://cmake.org/cmake/help/latest/manual/cmake.1.html

Petr

On 10 July 2017 at 22:06, A.M. Sabuncu <amsabuncu at gmail.com> wrote:

> I am completely new to CMake, and am using to build MySQL 5.7.18 on
> Windows 10 x64, using the following command:
>
> cmake .. -DDOWNLOAD_BOOST=1 -DWITH_BOOST="C:\Boost" -DENABLE_DOWNLOADS=1
>
> I have VS 2017 installed, and I am on 64 bit machine, but for some reason,
> the above command produces the following output:
>
> The CXX compiler identification is MSVC 19.10.25019.0
> -- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual
> Studio/2017/Professional/VC/Tools/MSVC/14.10.25017/bin/HostX86/x86/cl.exe
> -- Check for working C compiler: C:/Program Files (x86)/Microsoft Visual
> Studio/2017/Professional/VC/Tools/MSVC/14.10.25017/bin/HostX86/x86/cl.exe
> -- works
>
> The correct compiler is in the HostX64/x64 folder.
>
> Thinking that CMake might be looking it up from there, I checked the
> processor architecture environment variable from the same cmd.exe that I
> launched the CMake command from, and here's the result:
>
> PROCESSOR_ARCHITECTURE=AMD64
>
> When I follow the above CMake command with the following:
>
> devenv MySQL.sln /build RelWithDebInfo
>
> I get 32-bit results generated, which is not what I want.
>
> How can I get CMake to generate a 64-bit build?
>
> Thanks so much.
>
>
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