Hi @sankhesh, thanks for the response. Yes, I followed the instructions (again today). The output after performing the final step in the MR checkout instructions:
Merge made by the 'recursive' strategy.
CMake/vtk-config.cmake.in | 5 +++++
Documentation/release/dev/qt6-support.md | 6 ++++++
GUISupport/Qt/CMakeLists.txt | 29 ++++++++++++++++++++++++-----
GUISupport/Qt/QFilterTreeProxyModel.cxx | 4 ++++
GUISupport/Qt/QVTKInteractor.cxx | 5 +++++
GUISupport/Qt/QVTKInteractorAdapter.cxx | 6 +++---
GUISupport/Qt/QVTKOpenGLNativeWidget.cxx | 1 -
GUISupport/Qt/QVTKOpenGLStereoWidget.cxx | 1 -
GUISupport/Qt/QVTKOpenGLWindow.cxx | 1 -
GUISupport/Qt/QVTKRenderWindowAdapter.cxx | 3 +--
GUISupport/Qt/Testing/Cxx/CMakeLists.txt | 4 ++--
GUISupport/Qt/vtkQWidgetTexture.cxx | 8 ++++----
GUISupport/Qt/vtkQtDebugLeaksView.cxx | 8 ++++++++
Rendering/Qt/CMakeLists.txt | 6 +++---
Views/Qt/CMakeLists.txt | 6 +++---
15 files changed, 68 insertions(+), 25 deletions(-)
This is exactly the number of changes on the MR page. With this, I had to choose 4 Qt6 directories (Widgets, WidgetsTools, CoreTools, GuiTools) in the CMake Configure phase, and then got this error:
CMake Error at CMake/vtkModule.cmake:4228 (message):
Could not find the Qt5 external dependency.
Call Stack (most recent call first):
GUISupport/QtSQL/CMakeLists.txt:11 (vtk_module_find_package)
You can see the hard-coded Qt5:: in the above line, and a single : in another file:
(base) % grep -n Qt5 GUISupport/QtSQL/CMakeLists.txt
12: PACKAGE Qt5
15: VERSION_VAR Qt5_VERSION)
16:vtk_module_link(VTK::GUISupportQtSQL PUBLIC Qt5::Sql Qt5::Widgets)
(base) % grep -n ":Widgets" Views/Qt/CMakeLists.txt
21:vtk_module_link(VTK::ViewsQt PRIVATE Qt${VTK_QT_MAJOR_VERSION}:Widgets)
^^^
Full disclaimer: today I haven’t tried to fix these errors, but I expect the result to be the same as yesterday’s exercise (did it twice!). For example, now I grepped for some (not all) of the code lines that didn’t compile yesterday:
(base) % grep -n "fontMetric.width(" Rendering/Qt/vtkQtTreeRingLabelMapper.cxx
366: if (sdimDC[0] < fontMetric.width(minString))
^^^
374: if (sdimDC[1] < fontMetric.width(minString))
411: delta_x = -(fontMetric.width(testString)) / 2.;
415: delta_x = -fontMetric.width(testString);
(base) % grep -n QRegExp Views/Qt/vtkQtListView.cxx
163:void vtkQtListView::SetFilterRegExp(const QRegExp& pattern)
^^^
Today, the downloaded MR git tag looks correct – as I admitted, I had somehow messed up the tag yesterday. I believe all the other necessary changes (over and above the 15 on the MR page) are outlined in my previous response, at least on Mac OS.
If I build it again today, I will post back. Thanks again!