# cmake not using VTK\_MODULE\_ENABLE\_VTK\_GuiSupportQt or VTK\_MODULE\_ENABLE\_VTK\_GuiSupportQtQuick?

**URL:** https://discourse.vtk.org/t/cmake-not-using-vtk-module-enable-vtk-guisupportqt-or-vtk-module-enable-vtk-guisupportqtquick/15510
**Category:** Support
**Created:** [April 17, 2025, 9:50pm UTC](https://discourse.vtk.org/t/cmake-not-using-vtk-module-enable-vtk-guisupportqt-or-vtk-module-enable-vtk-guisupportqtquick/15510 "2025-04-17T21:50:40Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![Tomasso](https://discourse.vtk.org/user_avatar/discourse.vtk.org/tomasso/32/5786_2.png) [@Tomasso](https://discourse.vtk.org/u/Tomasso)
#### Post date: [April 17, 2025, 9:50pm UTC](https://discourse.vtk.org/t/cmake-not-using-vtk-module-enable-vtk-guisupportqt-or-vtk-module-enable-vtk-guisupportqtquick/15510/1 "2025-04-17T21:50:40Z")

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I’m building VTK-9.4.2, on MacOS Sequoia.  
After downloading the source I issue:

`cmake -DVTK_MODULE_ENABLE_VTK_GuiSupportQt=YES -DVTK_MODULE_ENABLE_VTK_GuiSupportQtQuick=YES -DVTK_MODULE_ENABLE_VTK_ViewsQt=YES ..`

When cmake completes it issues warning:

```auto
CMake Warning:
  Manually-specified variables were not used by the project:

    VTK_MODULE_ENABLE_VTK_GuiSupportQt
    VTK_MODULE_ENABLE_VTK_GuiSupportQtQuick

```

Libraries corresponding to those modules are not built.  
What am I doing wrong?  
Thanks!

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### Author: ![mwestphal](https://discourse.vtk.org/user_avatar/discourse.vtk.org/mwestphal/32/19_2.png) [@mwestphal](https://discourse.vtk.org/u/mwestphal)
#### Post date: [April 18, 2025, 7:20am UTC](https://discourse.vtk.org/t/cmake-not-using-vtk-module-enable-vtk-guisupportqt-or-vtk-module-enable-vtk-guisupportqtquick/15510/2 "2025-04-18T07:20:50Z")

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You need to enable `VTK_GROUP_ENABLE_Qt`

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### Author: ![sankhesh](https://discourse.vtk.org/user_avatar/discourse.vtk.org/sankhesh/32/73_2.png) [@sankhesh](https://discourse.vtk.org/u/sankhesh)
#### Post date: [April 18, 2025, 11:25am UTC](https://discourse.vtk.org/t/cmake-not-using-vtk-module-enable-vtk-guisupportqt-or-vtk-module-enable-vtk-guisupportqtquick/15510/3 "2025-04-18T11:25:58Z")

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You need to ensure the case is correct. The variables should be:

`VTK_MODULE_ENABLE_VTK_GUISupportQt` and `VTK_MODULE_ENABLE_VTK_GUISupportQtQuick`.

You shouldn’t need the `VTK_GROUP_ENABLE_Qt` option unless you need the additional vtk Qt modules like `RenderingQt` and `ViewsQt` as well.

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<div class="post-metadata">

### Author: ![mwestphal](https://discourse.vtk.org/user_avatar/discourse.vtk.org/mwestphal/32/19_2.png) [@mwestphal](https://discourse.vtk.org/u/mwestphal)
#### Post date: [April 18, 2025, 11:31am UTC](https://discourse.vtk.org/t/cmake-not-using-vtk-module-enable-vtk-guisupportqt-or-vtk-module-enable-vtk-guisupportqtquick/15510/4 "2025-04-18T11:31:45Z")

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> [@sankhesh](#):
>
> You shouldn’t need the `VTK_GROUP_ENABLE_Qt` option unless you need the additional vtk Qt modules like `RenderingQt` and `ViewsQt` as well.

Thanks @sankhesh , looks like I answered too fast 🙂