[CMake] MinGW Compilers on Windows

[Konstantin Tokarev]

08.12.2017, 22:16, "Kevan Hashemi" <hashemi at brandeis.edu>:
> Greetings,
>
> I'm new to CMake, so please forgive this basic question.
>
> I'd like to use CMake to build OpenCV on Windows 7 using the C and C++ compilers that come with my
> installation of MinGW. I compile all my other code with GCC compilers, from the command line of the
> MSYS Bash shell, so I figure I can be certain to link OpenCV to my existing code if I compile with
> GCC compilers.
>
> I installed the Windows GUI of CMake and I told it to use the MinGW C and C++ compilers. I point
> CMake at my OpenCV directory and a build directory. When I press configure, I get this error:
>
> Selecting Windows SDK version to target Windows 6.1.7601.
> CMake Error at CMakeLists.txt:64 (project):
> Failed to run MSBuild command:
> MSBuild.exe to get the value of VCTargetsPath:
> The system cannot find the file specified
> Configuring incomplete, errors occurred!
> See also "F:/OpenCV/build/CMakeFiles/CMakeOutput.log".
>
> If my understanding of CMake is correct, this error cannot not come directly from CMake, but rather
> is caused by OpenCV asking for MSBuild. But I can find no instance of the styring "MSBuild" in the
> OpenCV diretory tree. So my understanding must be wrong.
>
> Why is CMake looking for MSBuild? Can I build on Windows using compilers of my choice?

Of course, but you should choose a suitable generator, e.g. -G "MinGW Makefiles"

>
> Yours, Kevan
>
> --
> Kevan Hashemi, Electrical Engineer
> Physics Department, Brandeis University
> http://alignment.hep.brandeis.edu/
> --
>
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-- 
Regards,
Konstantin