[vtkusers] Build VTK with MinGW

[Allie Vacanti]

It's also worth pointing out that VTK does not officially support the MinGW
compilers. After you resolve this issue, there will likely be many more
problems to fix before you have a working build.

The supported compilers on the Windows platform are currently MSVC 2013 or
later.

On Wed, Sep 12, 2018 at 7:36 AM, Fcs <ftpronk at engits.com> wrote:

> Hello Tobias,
>
> I think the problem you are having is that you are trying to mix two
> programs compiled with different toolchains. Programs compiled with MinGW
> are NOT compatible/linkable with programs compiled with the MSVC toolchain.
> If you look at "C:\Windows\System32\opengl32.dll", it depends on
> MSVCRT.dll
> which is the C standard library for Visual C++ (MSVC).
>
> You have two choices:
>  - Either you stick with MinGW, and you compile all your dependencies with
> it (VTK, Qt, python, OpenGL..) so that the linking works
>  - Or you stick with the MSVC toolchain, and compile all your dependencies
> with it (or download them, as the most common libraries are readily
> installable with MSVC compatibility), which will allow you to also link to
> system libraries / system OpenGL.
>
> From experience, the second option is by far the easiest, especially if you
> start doing funky things..
>
> If you choose to go down the MinGW route (good luck..), the Khronos group
> has some instructions on their website for OpenGL support with MinGW:
> https://www.khronos.org/opengl/wiki/MinGW
>
> If you feel adventurous, their is an experimental third option, using the
> excellent clang toolchain. Apparently it has (partial?) MSVC compatibility,
> which would allow you to compile and link your code with libraries compiled
> with MSVC.
>
> Kind regards,
>
> Francois.
>
>
>
>
>
> --
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