From 85a0a6fec44097f0cdb43d0deb81b8d57b008c0f Mon Sep 17 00:00:00 2001
From: Ben Boeckel <ben.boeckel@kitware.com>
Date: Sun, 12 Mar 2023 15:27:51 -0400
Subject: [PATCH] Rendering/Volume: install `vtkBlockSortHelper`

Used within ParaView.
---
 Documentation/release/dev/missing-headers.md | 6 ++++++
 Rendering/Volume/CMakeLists.txt              | 6 +++++-
 2 files changed, 11 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/release/dev/missing-headers.md

diff --git a/Documentation/release/dev/missing-headers.md b/Documentation/release/dev/missing-headers.md
new file mode 100644
index 00000000000..be2891c5ab0
--- /dev/null
+++ b/Documentation/release/dev/missing-headers.md
@@ -0,0 +1,6 @@
+## missing headers
+
+Headers that were treated as private but should have been public are now
+installed.
+
+- `vtkBlockSortHelper.h` from `VTK::RenderingVolume`
diff --git a/Rendering/Volume/CMakeLists.txt b/Rendering/Volume/CMakeLists.txt
index be205d74649..cccd2ca1101 100644
--- a/Rendering/Volume/CMakeLists.txt
+++ b/Rendering/Volume/CMakeLists.txt
@@ -34,6 +34,10 @@ set(classes
   vtkVolumePicker
   vtkVolumeRayCastSpaceLeapingImageFilter)
 
+set(headers
+  vtkBlockSortHelper.h)
+
 vtk_module_add_module(VTK::RenderingVolume
-  CLASSES ${classes})
+  CLASSES ${classes}
+  HEADERS ${headers})
 vtk_add_test_mangling(VTK::RenderingVolume)
-- 
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