commit:     93d456a431ec44fba59ada3d68eaf3a1e269d54b
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Sat Sep  7 14:49:23 2024 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Sat Sep  7 14:49:23 2024 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=93d456a4

Revert "sci-libs/vtk: drop 9.2.5-r2 9.2.6-r3"

This reverts commit ebd71c0b8cd45077a7fda0d190e8f8fe887940ce.

(stable) opencascade needs older vtk.

Signed-off-by: Sam James <sam <AT> gentoo.org>

 sci-libs/vtk/Manifest                              |  12 +
 .../vtk-9.2.2-VTKm-respect-user-CXXFLAGS.patch     |  81 +++
 ...9.2.2-link-with-glut-library-for-freeglut.patch |  18 +
 ...metryFilter-add-missing-mutex-header-file.patch |  20 +
 ...dd-include-cstdint-to-compile-with-gcc-13.patch |  30 +
 ...-9.2.5-Fix-compilation-error-with-CUDA-12.patch |  21 +
 ...ore-include-cstdint-to-compile-with-gcc13.patch |  33 +
 sci-libs/vtk/files/vtk-9.2.6-Java21.patch          |  15 +
 sci-libs/vtk/vtk-9.2.5-r2.ebuild                   | 746 ++++++++++++++++++++
 sci-libs/vtk/vtk-9.2.6-r3.ebuild                   | 747 +++++++++++++++++++++
 10 files changed, 1723 insertions(+)

diff --git a/sci-libs/vtk/Manifest b/sci-libs/vtk/Manifest
index 778c263572f8..51b1e50afdd1 100644
--- a/sci-libs/vtk/Manifest
+++ b/sci-libs/vtk/Manifest
@@ -1,6 +1,18 @@
+DIST VTK-9.2.5.tar.gz 53807732 BLAKE2B 
8d25ec8f23c12868b2321eca84644dbf44704e58b7b79b2fd3a1260f7a240a78e4007fd99633ba93359103afc8ec00c7fa84f62778aed3d3361e1774a87b5626
 SHA512 
b1f225fb2589449621fd32bb0fc3f4817478d972cdccf7a9a376f1c17e93d5bd0a0511cdaa8587568a4baac9dfa8b5ffb9041442e221cd98d8f55e9981b6fcbf
+DIST VTK-9.2.6.tar.gz 53810904 BLAKE2B 
e3f9736a9b38415e0edd4b4c4bfe83aa154221c3c2c582e527996f88386b1b4d7864ddd2a364c0e83596ff45902cb7cde548ac3a4eebe06c2e43925c2608c4d3
 SHA512 
f2328caae959d583299b7fd57205f3dd76f87c8c1ee78653e85d44cab085295bf7bf88b3f6a2b960a57df96ccb32049337ebccb067ecde6d84d25eda636196bc
 DIST VTK-9.3.0.tar.gz 99932810 BLAKE2B 
59c2cdfe1c2525ac0f89df77a668783d928b55d2e72b42df45ea9b789da1bb150d52ce4108f2bc39cb8840cdd1998f57d3aedf96c72e402f6115d9efeebf4486
 SHA512 
2722dc8186779df1af5c534f26b20186ea33cb3bca2cef8cb333542b12e738382616e26e8d4d0341cb98c30403f8a896d77ddb04adb07e26d0d548c4a34b7d2f
+DIST VTKData-9.2.5.tar.gz 594016050 BLAKE2B 
7f03f5640ee648275a9771f990f98a3b5dfee10c0e291b353e6f067a098d50e2653c577b7c9c4e19c1d554e14469968014d1dfe9e70a91ecbff75397a53c9be9
 SHA512 
c06264c10bf78943753e58b9cb034d56b65570995741020dc58d5703525cdd4842d680fb6e185fa8fc39b72225ea6b29d8d632c0327f4145a7e2b79f3f702ec3
+DIST VTKData-9.2.6.tar.gz 594029678 BLAKE2B 
b3d6990a8098d9bec02a031b6d804049ce649bcd58fbcd74001e893ba41159e49f4dea74c5957737098a39a399d347b3bc65db4feadf152dd3fb8e705da16eb4
 SHA512 
5c5f2b365777733180a63daff224da7055e1c2911eb5e4efda26e38b9ac01cb8e886cf7e71c45ac83347642caf1786e72bb469c22954ffbbb6e2c317fc6b4080
 DIST VTKData-9.3.0.tar.gz 612388942 BLAKE2B 
66d73ddaf5f2ddf52cf5c6dda5a918a86ae630df207983534478c92a66c39e38b1f4abfb93900b36899a93ad0e26260763573e925bd128c1646a1bc3bef8c54d
 SHA512 
385d609c2adc1746c073690b58a3fc25e496946c03f08e6c9e0a69ee406cee447e66d267986c3e5ba9006dd1cb0015b68134bb3c375ae41aef8f3b1e0d923d51
+DIST VTKDataFiles-9.2.5.tar.gz 609038837 BLAKE2B 
e6a5aa5a865664cf407914c9598497f6304b914748ce9d9145b5b7d53f5897b4056b6f7615bb8221c9a9747caf13ba632e21b060b1c8963bb7d6b257bb1da559
 SHA512 
c0cf7e0fb79f626e25946f1154d9e4c3e7ec995a823a01fc9638976f89af26ae8978a5b6c8a78d62f42f7f81b5fbe0cddc6afc5836c214f3dcaddb917a1ccc79
+DIST VTKDataFiles-9.2.6.tar.gz 609045751 BLAKE2B 
c8a4a8472dcc05f5b1d35c8f6923b4ed2e7adb593a3037ae7673a5e674583ef9ccc5bc1ec8cf29e87fd5b168c0bba5ed27b89c51fe2e5da432ef5d50e415af94
 SHA512 
f7c104641d25126956a50671934c10b25589e435d7cce6a5107c8dcf83a81f48ed3ae8a325b635f341a5a47579f9200689aa5eb34fe0d1c37acddfeedd33cd01
 DIST VTKDataFiles-9.3.0.tar.gz 628646039 BLAKE2B 
c2a4e875536c0b06f1edc8a8df17defbe1038067d7a04fc07e71ea49cad46139ef25f64d4b434a095ced16a7ff39d5346d34c528c099ea2e126c9f29afe92482
 SHA512 
c6788acfa790ce6b02aa5545fa4e411d00896b7542416c18b5e5955909f26a8fab9267e44db1c2a86f95f7a7f093695453f3fd0ec4e2c9a73449f9caf3fc09d5
+DIST VTKLargeData-9.2.5.tar.gz 247523496 BLAKE2B 
edc785e271ba605c730b9c8d9d62d2d95d818ebf18e4b20468c247187720a27897ecbf701e1eff61ba135545e6ea8f573ef120206813ee5ca11be33d8c5ff728
 SHA512 
7a994024aa42b48d3633cdcc528d89a2e7e07bcc47d01a0001578720dbc2eb991b90dc2f9caafe8f26a1f10185efb1bc2c0506f799da2b96e63ba08cb564117d
+DIST VTKLargeData-9.2.6.tar.gz 247521022 BLAKE2B 
ee6e5f627a5cb96aac6a53b7ff14d4a40f1e243a095c7d145412d899ab9d509af5a62ab889fc48c96ff78359443afbeecfa70cb937affdad7225071374b28bec
 SHA512 
f0b71baa4e346746e186c6a0cc93588d227b91cd4993ee6afe15708006250b0b3aa9447822845e01432728c12af56c68a213831b6dc809807ca341ff6912f55f
 DIST VTKLargeData-9.3.0.tar.gz 247520869 BLAKE2B 
e01f3d0997d0b328d6c5909d6b891443c1246bdbc36aa978004a1d4bb2770f7923afed2c0d78f7844aae95e067425b9dd25a1c47601c8137ba0a8a958b708cab
 SHA512 
d87eb0fb4ce27ae9f4363c54bb711e66c5d2dbcdf508cb5fae9fcc1574407df2816f29d20037297b834440cd8a54fcf8e1d6db14700054f057bff2fe48404d33
+DIST VTKLargeDataFiles-9.2.5.tar.gz 247506616 BLAKE2B 
45cd462a11dfa65260a5aa178b2004636eb8ec000af9103fd2fc64ca55b0f607cdf39c40f5f0a9ef843b7b2e468e0f84a34dafb8b8655efce5c8d39c80961422
 SHA512 
da96e4f1d0e21bc597832d8cd0730dcdd8a8f7d6c1f41f74ec41a7a1d0b2a2d61e86bcb5fade7d3210b9d66cae975b537e25280767e37fe08e0965b3e98c1cae
+DIST VTKLargeDataFiles-9.2.6.tar.gz 247505945 BLAKE2B 
dafec016a17bc4371972e85fe95e5032f385ef090ca7f3cc4e060976798c18015e34d74aa008a0532a37b3a51df406886a1d70c2eae18f6092a1c16cc861a81a
 SHA512 
5266d7761987d651e1185e7a8fcc556634e129bb2dab892f8bba0e408a950f38c3f96c521a2079bfdc16a6cefb7b4cebc0b63aea945c4f3f0b6a99c55d638197
 DIST VTKLargeDataFiles-9.3.0.tar.gz 247503839 BLAKE2B 
68007af36148eaae43fc0fd75b9f8d3b165c977b7bc44efa4ce7077dc4977514f49a4d7d5e4a9e43fc9dec6562d741bdee5df87efa285b3361f865023da14f55
 SHA512 
f7def947ff492acbfdaa3d360064c42fdd3fedab27fd5d7bed1dbf8054b814cc8843ba0fed7078926648d1e8949235b877de97747be079ea478b79558975e6ea
+DIST vtkDocHtml-9.2.5.tar.gz 158865725 BLAKE2B 
ccfb6276955bda567e7f2b6fdc5e3e601766bae0314821c243a3d009e1557c5732bfbab59358670c4bc6cd598ba80c284971763e5279bc53c37d954ec30fcc03
 SHA512 
7901e9fb987ef3b88e8c507ecc7538b551c81d04a9cc65a84ff43b40dc1aeca2a694dd9842a030979a1370873b9fed0c8746a0634b486566086d7784a19181d6
+DIST vtkDocHtml-9.2.6.tar.gz 158833419 BLAKE2B 
04686ee0373191fec454738b5e745f3f6d913120dd55727732ab31a021eeaf1395e6a39ee0e2a943c80dc9d32a929dacfc1325afad5a412964dabb4eda32c898
 SHA512 
e72cfda5cfeb3df0f915f6515bbd34bcb32052af940760cfb1c9845a5c0a81fae38837fb2e192eb95446cd27b65b37b79263f5396631e4665c9d8c57455dcf43
 DIST vtkDocHtml-9.3.0.tar.gz 165538725 BLAKE2B 
27874998679090d5442ecb3a394b53db05a0215cfee9f912bd01af1d5567efc51b4f56dacb960401195da4f3d385b335bbefc922a45d0199c99d619df0941f08
 SHA512 
8bf9cc87c4653a65ccc39d88d70b421a7b4353986d380cbf558cbf6e8a96435695a5d54aa7ce5bb1240cb46ca0fd9225a51183a39d1af1101d3f2876a2afc10b

diff --git a/sci-libs/vtk/files/vtk-9.2.2-VTKm-respect-user-CXXFLAGS.patch 
b/sci-libs/vtk/files/vtk-9.2.2-VTKm-respect-user-CXXFLAGS.patch
new file mode 100644
index 000000000000..c47bced20f22
--- /dev/null
+++ b/sci-libs/vtk/files/vtk-9.2.2-VTKm-respect-user-CXXFLAGS.patch
@@ -0,0 +1,81 @@
+From 225a077898eb714e5ecb80255796aa70625e6cea Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <[email protected]>
+Date: Sat, 12 Nov 2022 02:01:35 +0100
+Subject: [PATCH] VTKm respect user CXXFLAGS
+
+Signed-off-by: Bernd Waibel <[email protected]>
+--- a/Accelerators/Vtkm/Core/CMakeLists.txt
++++ b/Accelerators/Vtkm/Core/CMakeLists.txt
+@@ -79,6 +79,16 @@ if (TARGET vtkm::cuda)
+   vtk_module_set_properties(VTK::AcceleratorsVTKmCore
+     LANGUAGE CUDA
+     CUDA_SEPARABLE_COMPILATION ON)
++
++  string(STRIP ${CMAKE_CXX_FLAGS} _cmake_cxx_flags)
++  string(REPLACE " " ";" cmake_cxx_flags_list ${_cmake_cxx_flags})
++  set(cxx_flags -Wall)
++  foreach(cmake_cxx_flag ${cmake_cxx_flags_list})
++    list(APPEND cxx_flags 
$<$<COMPILE_LANGUAGE:CUDA>:-Xcompiler=${cmake_cxx_flag}>)
++  endforeach()
++  vtk_module_compile_options(VTK::AcceleratorsVTKmCore
++    PUBLIC
++      ${cxx_flags})
+ endif()
+ 
+ if (MSVC)
+--- a/Accelerators/Vtkm/DataModel/CMakeLists.txt
++++ b/Accelerators/Vtkm/DataModel/CMakeLists.txt
+@@ -89,6 +89,16 @@ if (TARGET vtkm::cuda)
+ 
+   vtk_module_compile_options(VTK::AcceleratorsVTKmDataModel
+     PUBLIC $<$<COMPILE_LANGUAGE:CUDA>:-Xcudafe 
--diag_suppress=extra_semicolon>)
++
++  string(STRIP ${CMAKE_CXX_FLAGS} _cmake_cxx_flags)
++  string(REPLACE " " ";" cmake_cxx_flags_list ${_cmake_cxx_flags})
++  set(cxx_flags -Wall)
++  foreach(cmake_cxx_flag ${cmake_cxx_flags_list})
++    list(APPEND cxx_flags 
$<$<COMPILE_LANGUAGE:CUDA>:-Xcompiler=${cmake_cxx_flag}>)
++  endforeach()
++  vtk_module_compile_options(VTK::AcceleratorsVTKmDataModel
++    PUBLIC
++      ${cxx_flags})
+ endif ()
+ 
+ if (MSVC)
+--- a/Accelerators/Vtkm/Filters/CMakeLists.txt
++++ b/Accelerators/Vtkm/Filters/CMakeLists.txt
+@@ -138,6 +138,16 @@ if (TARGET vtkm::cuda)
+ 
+   vtk_module_compile_options(VTK::AcceleratorsVTKmFilters
+     PUBLIC $<$<COMPILE_LANGUAGE:CUDA>:-Xcudafe 
--diag_suppress=extra_semicolon>)
++
++  string(STRIP ${CMAKE_CXX_FLAGS} _cmake_cxx_flags)
++  string(REPLACE " " ";" cmake_cxx_flags_list ${_cmake_cxx_flags})
++  set(cxx_flags -Wall)
++  foreach(cmake_cxx_flag ${cmake_cxx_flags_list})
++    list(APPEND cxx_flags 
$<$<COMPILE_LANGUAGE:CUDA>:-Xcompiler=${cmake_cxx_flag}>)
++  endforeach()
++  vtk_module_compile_options(VTK::AcceleratorsVTKmFilters
++    PUBLIC
++      ${cxx_flags})
+ endif ()
+ 
+ if (MSVC)
+--- a/ThirdParty/vtkm/vtkvtkm/vtk-m/CMake/VTKmCompilerFlags.cmake
++++ b/ThirdParty/vtkm/vtkvtkm/vtk-m/CMake/VTKmCompilerFlags.cmake
+@@ -126,6 +126,12 @@ elseif(VTKM_COMPILER_IS_ICC)
+ elseif(VTKM_COMPILER_IS_GNU OR VTKM_COMPILER_IS_CLANG)
+   set(cxx_flags -Wall -Wcast-align -Wextra -Wpointer-arith -Wformat 
-Wformat-security -Wshadow -Wunused -fno-common -Wno-unused-function)
+   set(cuda_flags 
-Xcompiler=-Wall,-Wcast-align,-Wpointer-arith,-Wformat,-Wformat-security,-Wshadow,-fno-common,-Wunused,-Wno-unknown-pragmas,-Wno-unused-local-typedefs,-Wno-unused-function)
++  string(STRIP ${CMAKE_CXX_FLAGS} _cmake_cxx_flags)
++  string(REPLACE " " ";" cmake_cxx_flags_list ${_cmake_cxx_flags})
++  foreach(elem ${cmake_cxx_flags_list})
++    list(PREPEND cxx_flags ${elem})
++    list(PREPEND cuda_flags -Xcompiler=${elem})
++  endforeach()
+ 
+   #Clang does not support the -Wchar-subscripts flag for warning if an array
+   #subscript has a char type.
+-- 
+2.38.1
+

diff --git 
a/sci-libs/vtk/files/vtk-9.2.2-link-with-glut-library-for-freeglut.patch 
b/sci-libs/vtk/files/vtk-9.2.2-link-with-glut-library-for-freeglut.patch
new file mode 100644
index 000000000000..39b7e7ab0f15
--- /dev/null
+++ b/sci-libs/vtk/files/vtk-9.2.2-link-with-glut-library-for-freeglut.patch
@@ -0,0 +1,18 @@
+From 801654a5f1c3991ff9bb3ea5798afdd252d214b6 Mon Sep 17 00:00:00 2001
+From: Bernd Waibel <[email protected]>
+Date: Mon, 21 Nov 2022 15:35:58 +0100
+Subject: [PATCH] link with glut library for freeglut
+
+Signed-off-by: Bernd Waibel <[email protected]>
+--- a/Rendering/External/Testing/Cxx/CMakeLists.txt
++++ b/Rendering/External/Testing/Cxx/CMakeLists.txt
+@@ -12,5 +12,5 @@ if(NOT APPLE)
+ 
+   vtk_test_cxx_executable(vtkRenderingExternalCxxTests tests)
+   target_link_libraries(vtkRenderingExternalCxxTests PRIVATE
+-    ${GLUT_LIBRARY})
++    ${GLUT_LIBRARIES})
+ endif()
+-- 
+2.38.1
+

diff --git 
a/sci-libs/vtk/files/vtk-9.2.2-vtkGeometryFilter-add-missing-mutex-header-file.patch
 
b/sci-libs/vtk/files/vtk-9.2.2-vtkGeometryFilter-add-missing-mutex-header-file.patch
new file mode 100644
index 000000000000..287d804847bb
--- /dev/null
+++ 
b/sci-libs/vtk/files/vtk-9.2.2-vtkGeometryFilter-add-missing-mutex-header-file.patch
@@ -0,0 +1,20 @@
+From 
https://gitlab.kitware.com/vtk/vtk/-/commit/57767732c4d54db89004c685022ac828bb51eccd
+
+From 57767732c4d54db89004c685022ac828bb51eccd Mon Sep 17 00:00:00 2001
+From: Andrew Bauer <[email protected]>
+Date: Wed, 27 Jul 2022 09:31:13 -0400
+Subject: [PATCH 033/614] vtkGeometryFilter: add missing mutex header file
+
+--- a/Filters/Geometry/vtkGeometryFilter.cxx
++++ b/Filters/Geometry/vtkGeometryFilter.cxx
+@@ -52,6 +52,7 @@
+ #include "vtkWedge.h"
+ 
+ #include <memory>
++#include <mutex>
+ 
+ vtkStandardNewMacro(vtkGeometryFilter);
+ vtkCxxSetObjectMacro(vtkGeometryFilter, Locator, vtkIncrementalPointLocator);
+-- 
+2.38.1
+

diff --git 
a/sci-libs/vtk/files/vtk-9.2.5-Add-include-cstdint-to-compile-with-gcc-13.patch 
b/sci-libs/vtk/files/vtk-9.2.5-Add-include-cstdint-to-compile-with-gcc-13.patch
new file mode 100644
index 000000000000..82bf19b6b07f
--- /dev/null
+++ 
b/sci-libs/vtk/files/vtk-9.2.5-Add-include-cstdint-to-compile-with-gcc-13.patch
@@ -0,0 +1,30 @@
+https://gitlab.kitware.com/vtk/vtk/-/merge-requests/9857
+
+From ef95422b62296e4c136917095eace14f48cefb82 Mon Sep 17 00:00:00 2001
+From: Laurent Rineau <[email protected]>
+Date: Tue, 17 Jan 2023 16:18:53 +0100
+Subject: [PATCH] Add #include <cstdint> to compile with gcc13
+
+The `vtkSEPReader` was introduced by MRs !4909 (from my former
+collaborator Maxime) and !4938. Then it was highly modified by
+!7516. The later MR is the one that introduced the uses of
+`std::uint8_t` and `std::uint32_t`.
+
+Those types needs the inclusion of `<cstdint>`.
+--- a/IO/Image/vtkSEPReader.h
++++ b/IO/Image/vtkSEPReader.h
+@@ -25,8 +25,9 @@
+ #include "vtkImageAlgorithm.h"
+ #include "vtkNew.h" // for ivars
+ 
+-#include <array>  // for std::array
+-#include <string> // for std::string
++#include <array>   // for std::array
++#include <cstdint> // for std::uint8_t and std::uint32_t
++#include <string>  // for std::string
+ 
+ namespace details
+ {
+-- 
+GitLab
+

diff --git 
a/sci-libs/vtk/files/vtk-9.2.5-Fix-compilation-error-with-CUDA-12.patch 
b/sci-libs/vtk/files/vtk-9.2.5-Fix-compilation-error-with-CUDA-12.patch
new file mode 100644
index 000000000000..9b8583fa61e2
--- /dev/null
+++ b/sci-libs/vtk/files/vtk-9.2.5-Fix-compilation-error-with-CUDA-12.patch
@@ -0,0 +1,21 @@
+https://894646.bugs.gentoo.org/attachment.cgi?id=851914
+https://gitlab.kitware.com/vtk/vtk-m/-/merge_requests/2972/diffs
+
+From be96ea7d85fefcad876729377c1b73a295d1c732 Mon Sep 17 00:00:00 2001
+From: "Luke A. Guest" <[email protected]>
+Date: Thu, 16 Feb 2023 16:57:32 +0000
+Subject: [PATCH] Fix compilation error with CUDA 12.
+
+--- a/ThirdParty/vtkm/vtkvtkm/vtk-m/vtkm/exec/cuda/internal/ExecutionPolicy.h
++++ b/ThirdParty/vtkm/vtkvtkm/vtk-m/vtkm/exec/cuda/internal/ExecutionPolicy.h
+@@ -17,6 +17,7 @@
+ #include <vtkm/exec/cuda/internal/ThrustPatches.h>
+ VTKM_THIRDPARTY_PRE_INCLUDE
+ #include <thrust/execution_policy.h>
++#include <thrust/sort.h>
+ #include <thrust/system/cuda/execution_policy.h>
+ #include <thrust/system/cuda/memory.h>
+ VTKM_THIRDPARTY_POST_INCLUDE
+-- 
+2.39.1
+

diff --git 
a/sci-libs/vtk/files/vtk-9.2.5-More-include-cstdint-to-compile-with-gcc13.patch 
b/sci-libs/vtk/files/vtk-9.2.5-More-include-cstdint-to-compile-with-gcc13.patch
new file mode 100644
index 000000000000..356efbb4da9a
--- /dev/null
+++ 
b/sci-libs/vtk/files/vtk-9.2.5-More-include-cstdint-to-compile-with-gcc13.patch
@@ -0,0 +1,33 @@
+https://bugs.gentoo.org/905387
+https://github.com/Kitware/VTK/commit/4d8283bcb460ff60d8df1b7b67b5db19876a5ca3
+
+From 890f7574f01cf58cb1522772a62ca07deb438479 Mon Sep 17 00:00:00 2001
+From: Mathieu Westphal <[email protected]>
+Date: Thu, 23 Feb 2023 18:06:07 +0100
+Subject: [PATCH 1580/2105] More #include <cstdint> to compile with gcc13
+
+--- a/IO/PIO/PIOData.h
++++ b/IO/PIO/PIOData.h
+@@ -1,6 +1,7 @@
+ #if !defined(_PIODATA_H)
+ #define _PIODATA_H
+ 
++#include <cstdint>
+ #include <fstream>
+ #include <iostream>
+ #include <list>
+--- a/Rendering/Matplotlib/vtkMatplotlibMathTextUtilities.h
++++ b/Rendering/Matplotlib/vtkMatplotlibMathTextUtilities.h
+@@ -49,7 +49,8 @@
+ #include "vtkMathTextUtilities.h"
+ #include "vtkRenderingMatplotlibModule.h" // For export macro
+ 
+-#include <vector> // for std::vector
++#include <cstdint> // for std::uint64_t
++#include <vector>  // for std::vector
+ 
+ struct _object;
+ typedef struct _object PyObject;
+-- 
+2.40.1
+

diff --git a/sci-libs/vtk/files/vtk-9.2.6-Java21.patch 
b/sci-libs/vtk/files/vtk-9.2.6-Java21.patch
new file mode 100644
index 000000000000..b7b2e233cdb4
--- /dev/null
+++ b/sci-libs/vtk/files/vtk-9.2.6-Java21.patch
@@ -0,0 +1,15 @@
+--- a/Wrapping/Java/CMakeLists.txt
++++ b/Wrapping/Java/CMakeLists.txt
+@@ -201,10 +201,10 @@ set(VTK_JAVA_TARGET_VERSION "<DEFAULT>" CACHE STRING 
"javac target version")
+ mark_as_advanced(VTK_JAVA_TARGET_VERSION)
+ 
+ if (VTK_JAVA_SOURCE_VERSION STREQUAL "<DEFAULT>")
+-  set(VTK_JAVA_SOURCE_VERSION "1.7")
++  set(VTK_JAVA_SOURCE_VERSION "1.8")
+ endif ()
+ if (VTK_JAVA_TARGET_VERSION STREQUAL "<DEFAULT>")
+-  set(VTK_JAVA_TARGET_VERSION "1.7")
++  set(VTK_JAVA_TARGET_VERSION "1.8")
+ endif ()
+ 
+ set(CMAKE_LIBRARY_OUTPUT_DIRECTORY 
"${CMAKE_BINARY_DIR}/${CMAKE_INSTALL_JARDIR}")

diff --git a/sci-libs/vtk/vtk-9.2.5-r2.ebuild b/sci-libs/vtk/vtk-9.2.5-r2.ebuild
new file mode 100644
index 000000000000..4af7d8df0261
--- /dev/null
+++ b/sci-libs/vtk/vtk-9.2.5-r2.ebuild
@@ -0,0 +1,746 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# TODO:
+# - add USE flag for remote modules? Those modules can be downloaded
+#      properly before building.
+# - replace usex by usev where applicable
+
+PYTHON_COMPAT=( python3_{9..11} )
+WEBAPP_OPTIONAL=yes
+WEBAPP_MANUAL_SLOT=yes
+
+inherit check-reqs cmake cuda java-pkg-opt-2 multiprocessing python-single-r1 
toolchain-funcs virtualx webapp
+
+# Short package version
+MY_PV="$(ver_cut 1-2)"
+
+DESCRIPTION="The Visualization Toolkit"
+HOMEPAGE="https://www.vtk.org/";
+SRC_URI="
+       https://www.vtk.org/files/release/${MY_PV}/VTK-${PV}.tar.gz
+       https://www.vtk.org/files/release/${MY_PV}/VTKData-${PV}.tar.gz
+       https://www.vtk.org/files/release/${MY_PV}/VTKDataFiles-${PV}.tar.gz
+       doc? ( 
https://www.vtk.org/files/release/${MY_PV}/vtkDocHtml-${PV}.tar.gz )
+       examples? (
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeData-${PV}.tar.gz
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeDataFiles-${PV}.tar.gz
+       )
+       test? (
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeData-${PV}.tar.gz
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeDataFiles-${PV}.tar.gz
+       )
+"
+S="${WORKDIR}/VTK-${PV}"
+
+LICENSE="BSD LGPL-2"
+SLOT="0/${MY_PV}"
+KEYWORDS="amd64 ~arm ~arm64 ~x86 ~amd64-linux ~x86-linux"
+# TODO: Like to simplifiy these. Mostly the flags related to Groups.
+IUSE="all-modules boost cuda debug doc examples ffmpeg freetype gdal imaging
+       java las +logging mpi mysql odbc openmp openvdb pdal postgres python qt5
+       qt6 +rendering sdl tbb test +threads tk video_cards_nvidia views vtkm 
web"
+
+RESTRICT="!test? ( test )"
+
+REQUIRED_USE="
+       all-modules? (
+               boost ffmpeg freetype gdal imaging las mysql odbc openvdb pdal
+               postgres rendering views
+       )
+       cuda? ( video_cards_nvidia vtkm )
+       java? ( rendering )
+       python? ( ${PYTHON_REQUIRED_USE} )
+       qt5? ( rendering )
+       qt6? ( rendering )
+       sdl? ( rendering )
+       tk? ( python rendering )
+       web? ( python )
+"
+
+# for <pegtl-3 dependency see
+# https://discourse.vtk.org/t/compilation-errors-related-to-pegtl-proj/5929
+# eigen, nlohmann_json, pegtl and utfcpp are referenced in the cmake files
+# and need to be available when VTK consumers configure the dependencies.
+RDEPEND="
+       app-arch/lz4:=
+       app-arch/xz-utils
+       dev-cpp/eigen
+       dev-cpp/nlohmann_json
+       dev-db/sqlite:3
+       dev-libs/double-conversion:=
+       dev-libs/expat
+       dev-libs/icu:=
+       dev-libs/jsoncpp:=
+       >=dev-libs/libfmt-8.1.1:=
+       dev-libs/libxml2:2
+       dev-libs/libzip:=
+       <dev-libs/pegtl-3
+       dev-libs/pugixml
+       dev-libs/utfcpp
+       media-libs/freetype
+       media-libs/libjpeg-turbo
+       >=media-libs/libharu-2.4.2:=
+       media-libs/libogg
+       media-libs/libpng:=
+       media-libs/libtheora
+       media-libs/tiff:=
+       >=sci-libs/cgnslib-4.1.1:=[hdf5,mpi=]
+       sci-libs/hdf5:=[mpi=]
+       sci-libs/proj:=
+       sci-libs/netcdf:=[mpi=]
+       sys-libs/zlib
+       boost? ( dev-libs/boost:=[mpi?] )
+       cuda? ( dev-util/nvidia-cuda-toolkit:= )
+       ffmpeg? ( media-video/ffmpeg:= )
+       freetype? ( media-libs/fontconfig )
+       gdal? ( sci-libs/gdal:= )
+       java? ( >=virtual/jdk-1.8:* )
+       las? ( sci-geosciences/liblas )
+       mpi? ( virtual/mpi[cxx,romio] )
+       mysql? ( dev-db/mariadb-connector-c )
+       odbc? ( dev-db/unixODBC )
+       openvdb? ( media-gfx/openvdb:= )
+       pdal? ( <sci-libs/pdal-2.6.0:= )
+       postgres? ( dev-db/postgresql:= )
+       python? (
+               ${PYTHON_DEPS}
+               $(python_gen_cond_dep 'mpi? ( 
dev-python/mpi4py[${PYTHON_USEDEP}] )')
+       )
+       qt5? (
+               dev-qt/qtcore:5
+               dev-qt/qtopengl:5
+               dev-qt/qtquickcontrols2:5
+               dev-qt/qtsql:5
+               dev-qt/qtwidgets:5
+       )
+       qt6? (
+               dev-qt/qtbase:6[gui,opengl,sql,widgets]
+               dev-qt/qtdeclarative:6[opengl]
+               dev-qt/qtshadertools:6
+               x11-libs/libxkbcommon
+       )
+       sdl? ( media-libs/libsdl2 )
+       rendering? (
+               media-libs/glew:=
+               virtual/opengl
+               x11-libs/gl2ps
+               x11-libs/libICE
+               x11-libs/libXcursor
+               x11-libs/libXext
+       )
+       tbb? ( dev-cpp/tbb:= )
+       tk? ( dev-lang/tk:= )
+       video_cards_nvidia? ( x11-drivers/nvidia-drivers[tools,static-libs] )
+       views? (
+               x11-libs/libICE
+               x11-libs/libXext
+       )
+       web? ( ${WEBAPP_DEPEND} )
+"
+
+# for <pegtl-3 dependency see
+# https://discourse.vtk.org/t/compilation-errors-related-to-pegtl-proj/5929
+DEPEND="
+       ${RDEPEND}
+       dev-cpp/eigen
+       dev-cpp/nlohmann_json
+       <dev-libs/pegtl-3
+       dev-libs/utfcpp
+       test? (
+               media-libs/glew
+               x11-libs/libXcursor
+               rendering? ( media-libs/freeglut )
+       )
+"
+BDEPEND="virtual/pkgconfig"
+
+PATCHES=(
+       
"${FILESDIR}"/${PN}-9.2.2-vtkGeometryFilter-add-missing-mutex-header-file.patch
+       "${FILESDIR}"/${PN}-9.2.2-VTKm-respect-user-CXXFLAGS.patch
+       "${FILESDIR}"/${PN}-9.2.2-link-with-glut-library-for-freeglut.patch
+       
"${FILESDIR}"/${PN}-9.2.5-Add-include-cstdint-to-compile-with-gcc-13.patch
+       "${FILESDIR}"/${PN}-9.2.5-Fix-compilation-error-with-CUDA-12.patch
+       
"${FILESDIR}"/${PN}-9.2.5-More-include-cstdint-to-compile-with-gcc13.patch
+)
+
+DOCS=( CONTRIBUTING.md README.md )
+
+vtk_check_reqs() {
+       local dsk=4096
+       local mem=$(( $(usex cuda 7168 0) ))
+
+       dsk=$(( $(usex doc 3072 0) + ${dsk} ))
+       dsk=$(( $(usex examples 3072 0) + ${dsk} ))
+       dsk=$(( $(usex cuda 8192 0) + ${dsk} ))
+
+       # In case users are not aware of the extra NINJAOPTS, check
+       # for the more common MAKEOPTS, in case NINJAOPTS is empty
+       local jobs=1
+       if [[ -n "${NINJAOPTS}" ]]; then
+               jobs=$(makeopts_jobs "${NINJAOPTS}" "$(get_nproc)")
+       else
+               if [[ -n "${MAKEOPTS}" ]]; then
+                       jobs=$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")
+               fi
+       fi
+       mem=$(( ${mem} * $(( ${jobs} > 4 ? 4 : ${jobs} )) ))
+
+       use cuda && export CHECKREQS_MEMORY=${mem}M
+       export CHECKREQS_DISK_BUILD=${dsk}M
+
+       check-reqs_pkg_${EBUILD_PHASE}
+}
+
+pkg_pretend() {
+       [[ ${MERGE_TYPE} != binary ]] && has openmp && tc-check-openmp
+
+       if [[ $(tc-is-gcc) && $(gcc-majorversion) = 11 ]] && use cuda ; then
+               # FIXME: better use eerror?
+               ewarn "GCC 11 is know to fail building with CUDA support in 
some cases."
+               ewarn "See bug #820593"
+       fi
+
+       if use qt6 && use qt5; then
+               ewarn "Both qt5 and qt6 USE flags have been selected. Using 
qt5!"
+       fi
+
+       # bug #835659
+       if use cuda; then
+               if [[ ${VTK_CUDA_ARCH} = native ]]; then
+                       eerror "Using native CUDA arches is currently broken."
+                       eerror "Please set it to one of the common arch names:"
+                       eerror "kepler, maxwell, pascal, turing or ampere."
+                       die "Please set VTK_CUDA_ARCH environment variable!"
+               fi
+       fi
+
+       vtk_check_reqs
+}
+
+pkg_setup() {
+       [[ ${MERGE_TYPE} != binary ]] && has openmp && tc-check-openmp
+
+       if [[ $(tc-is-gcc) && $(gcc-majorversion) = 11 ]] && use cuda ; then
+               # FIXME: better use eerror?
+               ewarn "GCC 11 is know to fail building with CUDA support in 
some cases."
+               ewarn "See bug #820593"
+       fi
+
+       if use qt6 && use qt5; then
+               ewarn "Both qt5 and qt6 USE flags have been selected. Using 
qt5!"
+       fi
+
+       # bug #835659
+       if use cuda; then
+               if [[ ${VTK_CUDA_ARCH} = native ]]; then
+                       eerror "Using native CUDA arches is currently broken."
+                       eerror "Please set it to one of the common arch names:"
+                       eerror "kepler, maxwell, pascal, turing or ampere."
+                       die "Please set VTK_CUDA_ARCH environment variable!"
+               fi
+       fi
+
+       vtk_check_reqs
+
+       use java && java-pkg-opt-2_pkg_setup
+       use python && python-single-r1_pkg_setup
+       use web && webapp_pkg_setup
+}
+
+# Note: The following libraries are marked as internal by kitware
+#      and can currently not unbundled:
+#      diy2, exodusII, fides, h5part, kissfft, loguru, verdict, vpic,
+#      vtkm, xdmf{2,3}, zfp
+# TODO: cli11 (::guru), exprtk, ioss
+# Note: As of v9.2.2 we no longer drop bundled libraries, when using system
+# libraries. This just saves a little space. CMake logic of VTK on ThirdParty
+# libraries avoids automagic builds, so deletion is not needed to catch these.
+src_prepare() {
+       if use doc; then
+               einfo "Removing .md5 files from documents."
+               rm -f "${WORKDIR}"/html/*.md5 || die "Failed to remove 
superfluous hashes"
+               sed -e "s|\${VTK_BINARY_DIR}/Utilities/Doxygen/doc|${WORKDIR}|" 
\
+                       -i Utilities/Doxygen/CMakeLists.txt || die
+       fi
+
+       cmake_src_prepare
+
+       if use cuda; then
+               cuda_add_sandbox -w
+               cuda_src_prepare
+       fi
+
+       if use test; then
+               ebegin "Copying data files to ${BUILD_DIR}"
+               mkdir -p "${BUILD_DIR}/ExternalData" || die
+               pushd "${BUILD_DIR}/ExternalData" >/dev/null || die
+               ln -sf ../../VTK-${PV}/.ExternalData/README.rst . || die
+               ln -sf ../../VTK-${PV}/.ExternalData/SHA512 . || die
+               popd >/dev/null || die
+               eend "$?"
+       fi
+}
+
+# TODO: check these and consider to use them
+#      VTK_BUILD_SCALED_SOA_ARRAYS
+#      VTK_DISPATCH_{AOS,SOA,TYPED}_ARRAYS
+src_configure() {
+       local mycmakeargs=(
+               -DCMAKE_INSTALL_LICENSEDIR="share/${PN}/licenses"
+
+               -DVTK_ANDROID_BUILD=OFF
+               -DVTK_IOS_BUILD=OFF
+
+               -DVTK_BUILD_ALL_MODULES=$(usex all-modules ON OFF)
+               # we use the pre-built documentation and install these with 
USE=doc
+               -DVTK_BUILD_DOCUMENTATION=OFF
+               -DVTK_BUILD_EXAMPLES=$(usex examples ON OFF)
+
+               # no package in the tree: https://github.com/LLNL/conduit
+               -DVTK_ENABLE_CATALYST=OFF
+               -DVTK_ENABLE_KITS=OFF
+               -DVTK_ENABLE_LOGGING=$(usex logging ON OFF)
+               # defaults to ON: USE flag for this?
+               -DVTK_ENABLE_REMOTE_MODULES=OFF
+
+               # disable fetching files during build
+               -DVTK_FORBID_DOWNLOADS=ON
+
+               -DVTK_GROUP_ENABLE_Imaging=$(usex imaging "YES" "DEFAULT")
+               -DVTK_GROUP_ENABLE_Rendering=$(usex rendering "YES" "DEFAULT")
+               -DVTK_GROUP_ENABLE_StandAlone="YES"
+               -DVTK_GROUP_ENABLE_Views=$(usex views "YES" "DEFAULT")
+               -DVTK_GROUP_ENABLE_Web=$(usex web "YES" "DEFAULT")
+
+               -DVTK_INSTALL_SDK=ON
+
+               -DVTK_MODULE_ENABLE_VTK_IOCGNSReader="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOExportPDF="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOLAS=$(usex las "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_IONetCDF="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOOggTheora="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOOpenVDB=$(usex openvdb "WANT" 
"DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_IOSQL="WANT" # sqlite
+               -DVTK_MODULE_ENABLE_VTK_IOPDAL=$(usex pdal "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_IOXML="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOXMLParser="WANT"
+               -DVTK_MODULE_ENABLE_VTK_RenderingFreeType=$(usex freetype 
"WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_RenderingFreeTypeFontConfig=$(usex 
freetype "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_cgns="WANT"
+               -DVTK_MODULE_ENABLE_VTK_doubleconversion="WANT"
+               -DVTK_MODULE_ENABLE_VTK_eigen="WANT"
+               -DVTK_MODULE_ENABLE_VTK_expat="WANT"
+               -DVTK_MODULE_ENABLE_VTK_fmt="WANT"
+               -DVTK_MODULE_ENABLE_VTK_freetype="WANT"
+               -DVTK_MODULE_ENABLE_VTK_hdf5="WANT"
+               -DVTK_MODULE_ENABLE_VTK_jpeg="WANT"
+               -DVTK_MODULE_ENABLE_VTK_jsoncpp="WANT"
+               -DVTK_MODULE_ENABLE_VTK_libharu="WANT"
+               -DVTK_MODULE_ENABLE_VTK_libproj="WANT"
+               -DVTK_MODULE_ENABLE_VTK_libxml2="WANT"
+               -DVTK_MODULE_ENABLE_VTK_lz4="WANT"
+               -DVTK_MODULE_ENABLE_VTK_lzma="WANT"
+               -DVTK_MODULE_ENABLE_VTK_netcdf="WANT"
+               -DVTK_MODULE_ENABLE_VTK_nlohmannjson="WANT"
+               -DVTK_MODULE_ENABLE_VTK_ogg="WANT"
+               -DVTK_MODULE_ENABLE_VTK_pegtl="WANT"
+               -DVTK_MODULE_ENABLE_VTK_png="WANT"
+               -DVTK_MODULE_ENABLE_VTK_pugixml="WANT"
+               -DVTK_MODULE_ENABLE_VTK_sqlite="WANT"
+               -DVTK_MODULE_ENABLE_VTK_theora="WANT"
+               -DVTK_MODULE_ENABLE_VTK_tiff="WANT"
+               -DVTK_MODULE_ENABLE_VTK_utf8="WANT"
+               -DVTK_MODULE_ENABLE_VTK_vtkm=$(usex vtkm "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_zlib="WANT"
+
+               # not packaged in Gentoo
+               -DVTK_MODULE_USE_EXTERNAL_VTK_exprtk=OFF
+               -DVTK_MODULE_USE_EXTERNAL_VTK_ioss=OFF
+               -DVTK_MODULE_USE_EXTERNAL_VTK_verdict=OFF
+
+               -DVTK_RELOCATABLE_INSTALL=ON
+
+               -DVTK_SMP_ENABLE_OPENMP=$(usex openmp ON OFF)
+               -DVTK_SMP_ENABLE_STDTHREAD=$(usex threads ON OFF)
+               -DVTK_SMP_ENABLE_TBB=$(usex tbb ON OFF)
+
+               -DVTK_UNIFIED_INSTALL_TREE=ON
+
+               -DVTK_USE_CUDA=$(usex cuda ON OFF)
+               # use system libraries where possible
+               -DVTK_USE_EXTERNAL=ON
+               # avoid finding package from either ::guru or ::sci
+               -DVTK_USE_MEMKIND=OFF
+               -DVTK_USE_MPI=$(usex mpi ON OFF)
+               -DVTK_USE_TK=$(usex tk ON OFF)
+               -DVTK_USE_X=ON
+
+               -DVTK_WHEEL_BUILD=OFF
+
+               -DVTK_WRAP_JAVA=$(usex java ON OFF)
+               -DVTK_WRAP_PYTHON=$(usex python ON OFF)
+       )
+
+       if use all-modules; then
+               mycmakeargs+=(
+                       # no package in ::gentoo
+                       -DVTK_ENABLE_OSPRAY=OFF
+                       # TODO: some of these are tied to the 
VTK_ENABLE_REMOTE_MODULES
+                       # option. Check whether we can download them clean and 
enable
+                       # them.
+                       -DVTK_MODULE_ENABLE_VTK_DomainsMicroscopy="NO"
+                       -DVTK_MODULE_ENABLE_VTK_fides="NO"
+                       -DVTK_MODULE_ENABLE_VTK_FiltersOpenTURNS="NO"
+                       -DVTK_MODULE_ENABLE_VTK_IOADIOS2="NO"
+                       -DVTK_MODULE_ENABLE_VTK_IOFides="NO"
+
+                       -DVTK_MODULE_ENABLE_VTK_RenderingOpenVR="NO"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingOpenXR="NO"
+
+                       # available in ::guru, so avoid  detection if installed
+                       -DVTK_MODULE_USE_EXTERNAL_VTK_cli11=OFF
+               )
+       fi
+
+       if use boost; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_InfovisBoost="WANT"
+                       
-DVTK_MODULE_ENABLE_VTK_InfovisBoostGraphAlgorithms="WANT"
+               )
+       fi
+
+       # TODO: checks this on updates of nvidia-cuda-toolkit and update
+       # the list of available arches if necessary, i.e. add new arches
+       # once they are released at the end of the list before all.
+       # See https://en.wikipedia.org/wiki/CUDA#GPUs_supported
+       # CUDA 11.8 supports Ada Lovelace and Hopper arches, but cmake,
+       # as of 3.25.1 doesn't recognize these keywords.
+       # FIXME: better use numbers than names?
+       if use cuda; then
+               local cuda_arch=
+               case ${VTK_CUDA_ARCH:-native} in
+                       # we ignore fermi arch, because current 
nvidia-cuda-toolkit-11*
+                       # no longer supports it
+                       kepler|maxwell|pascal|volta|turing|ampere|all)
+                               cuda_arch=${VTK_CUDA_ARCH}
+                               ;;
+#                      native)
+#                              ewarn "If auto detection fails for you, please 
try and export the"
+#                              ewarn "VTK_CUDA_ARCH environment variable to 
one of the common arch"
+#                              ewarn "names: kepler, maxwell, pascal, volta, 
turing, ampere or all."
+#                              cuda_arch=native
+#                              ;;
+                       *)
+                               eerror "Please properly set the VTK_CUDA_ARCH 
environment variable to"
+                               eerror "one of: kepler, maxwell, pascal, volta, 
turing, ampere, all"
+                               die "Invalid CUDA architecture given: 
'${VTK_CUDA_ARCH}'!"
+                               ;;
+               esac
+               ewarn "Using CUDA architecture '${cuda_arch}'"
+
+               mycmakeargs+=( -DVTKm_CUDA_Architecture=${cuda_arch} )
+       fi
+
+       if use debug; then
+               mycmakeargs+=(
+                       -DVTK_DEBUG_LEAKS=ON
+                       -DVTK_DEBUG_MODULE=ON
+                       -DVTK_DEBUG_MODULE_ALL=ON
+                       -DVTK_ENABLE_SANITIZER=ON
+                       -DVTK_EXTRA_COMPILER_WARNINGS=ON
+                       -DVTK_WARN_ON_DISPATCH_FAILURE=ON
+               )
+               if use rendering; then
+                       mycmakeargs+=( 
-DVTK_OPENGL_ENABLE_STREAM_ANNOTATIONS=ON )
+               fi
+       fi
+
+       if use examples || use test; then
+               mycmakeargs+=( -DVTK_USE_LARGE_DATA=ON )
+       fi
+
+       if use ffmpeg; then
+               mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_IOFFMPEG="WANT" )
+               if use rendering; then
+                       mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingFFMPEGOpenGL2="WANT" )
+               fi
+       fi
+
+       if use gdal; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_GeovisGDAL="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOGDAL="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOGeoJSON="WANT"
+               )
+       fi
+
+       if use imaging; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_ImagingColor="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingFourier="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingGeneral="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingHybrid="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingMath="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingMorphological="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingSources="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingStatistics="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingStencil="WANT"
+               )
+               use rendering && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingImage="WANT" )
+       fi
+
+       if ! use java && ! use python; then
+               # defaults to ON
+               mycmakeargs+=( -DVTK_ENABLE_WRAPPING=OFF )
+       fi
+
+       if use java; then
+               mycmakeargs+=(
+                       -DCMAKE_INSTALL_JARDIR="share/${PN}"
+                       -DVTK_ENABLE_WRAPPING=ON
+                       -DVTK_MODULE_ENABLE_VTK_Java="WANT"
+               )
+       fi
+
+       if use mpi; then
+               mycmakeargs+=(
+                       -DVTK_GROUP_ENABLE_MPI="YES"
+                       -DVTK_MODULE_ENABLE_VTK_IOH5part="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOMPIParallel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOParallel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOParallelNetCDF="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOParallelXML="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ParallelMPI="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_h5part="WANT"
+                       -DVTK_MODULE_USE_EXTERNAL_VTK_verdict=OFF
+               )
+               use imaging && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_IOMPIImage="WANT" )
+               use python && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_ParallelMPI4Py="WANT" )
+               if use rendering; then
+                       mycmakeargs+=(
+                               -DVTK_MODULE_ENABLE_VTK_RenderingParallel="WANT"
+                               
-DVTK_MODULE_ENABLE_VTK_RenderingParallelLIC="WANT"
+                       )
+               fi
+               use vtkm && mycmakeargs+=( -DVTKm_ENABLE_MPI=ON )
+       else
+               mycmakeargs+=( -DVTK_GROUP_ENABLE_MPI="NO" )
+       fi
+
+       use mysql && mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_IOMySQL="WANT" )
+       use odbc && mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_IOODBC="WANT" )
+       use openvdb && mycmakeargs+=( 
-DOpenVDB_CMAKE_PATH="${ESYSROOT}/usr/$(get_libdir)/cmake/OpenVDB" )
+       use postgres && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_IOPostgreSQL="WANT" )
+
+       if use python; then
+               mycmakeargs+=(
+                       -DPython3_EXECUTABLE="${PYTHON}"
+                       -DVTK_ENABLE_WRAPPING=ON
+                       -DVTK_MODULE_ENABLE_VTK_Python="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_PythonInterpreter="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_WrappingPythonCore="WANT"
+                       
-DVTK_PYTHON_SITE_PACKAGES_SUFFIX="lib/${EPYTHON}/site-packages"
+               )
+               use rendering && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_PythonContext2D="WANT" )
+       fi
+
+       if use qt5 && use qt6; then
+               # prefer Qt5: https://wiki.gentoo.org/wiki/Project:qt/Policies
+               mycmakeargs+=(
+                       
-DCMAKE_INSTALL_QMLDIR="${EPREFIX}/usr/$(get_libdir)/qt5/qml"
+                       -DVTK_QT_VERSION="5"
+               )
+       else
+               if use qt5; then
+                       mycmakeargs+=(
+                               
-DCMAKE_INSTALL_QMLDIR="${EPREFIX}/usr/$(get_libdir)/qt5/qml"
+                               -DVTK_QT_VERSION="5"
+                       )
+               elif use qt6; then
+                       mycmakeargs+=(
+                               
-DCMAKE_INSTALL_QMLDIR="${EPFREIX}/usr/$(get_libdir)/qt6/qml"
+                               -DVTK_QT_VERSION="6"
+                       )
+               else
+                       mycmakeargs+=( -DVTK_GROUP_ENABLE_Qt="NO" )
+               fi
+       fi
+
+       if use qt5 || use qt6; then
+               mycmakeargs+=(
+                       -DVTK_GROUP_ENABLE_Qt:STRING="YES"
+                       -DVTK_MODULE_ENABLE_VTK_GUISupportQt="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_GUISupportQtQuick="WANT"
+               )
+               if use mysql || use postgres; then
+                       mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_GUISupportQtSQL="WANT" )
+               fi
+               if use rendering; then
+                       mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingQt="WANT" )
+               fi
+               if use views; then
+                       mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_ViewsQt="WANT" )
+               fi
+       fi
+
+       if use rendering; then
+               mycmakeargs+=(
+                       -DVTK_ENABLE_OSPRAY=OFF
+
+                       -DVTK_MODULE_ENABLE_VTK_IOExportGL2PS="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingAnnotation="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingContext2D="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingContextOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingExternal="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingGL2PSOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingHyperTreeGrid="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingLICOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingLOD="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingLabel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingMatplotlib="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingRayTracing="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingSceneGraph="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingUI="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingVolume="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingVolumeAMR="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingVolumeOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_gl2ps="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_glew="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_opengl="WANT"
+
+                       -DVTK_USE_SDL2=$(usex sdl "YES" "NO")
+               )
+               use tk && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingTk="WANT" )
+               use views && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_ViewsContext2D="WANT" )
+               use web && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingVtkJS="WANT" )
+       fi
+
+       # Testing has been changed in 9.2.5: it is now allowed without
+       # requiring to download, if the data files are available locally!
+       if use test; then
+               mycmakeargs+=(
+                       -DVTK_BUILD_TESTING=ON
+                       # disable fetching data files for the default 'all' 
target
+                       -DVTK_DATA_EXCLUDE_FROM_ALL=ON
+
+                       # requested even if all use flags are off
+                       -DVTK_MODULE_ENABLE_VTK_octree="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ViewsCore="WANT"
+
+                       # available in ::guru, so avoid  detection if installed
+                       -DVTK_MODULE_USE_EXTERNAL_VTK_cli11=OFF
+               )
+       else
+               mycmakeargs+=( -DVTK_BUILD_TESTING=OFF )
+       fi
+
+       # FIXME: upstream provides 4 threading models, as of 9.1.0. These are
+       # sequential, stdthread, openmp and tbb. AFAICS all of them can be
+       # enabled at the same time. Sequential and Stdthread are enabled by
+       # default. The default selected type for the build is sequential.
+       # Assuming sequential < stdpthread < openmp < tbb wrt speed, although
+       # this is dependent on the actual scenario where threading is used.
+       if use tbb; then
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="TBB" )
+       elif use openmp; then
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="OpenMP" )
+       elif use threads; then
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="STDThread" )
+       else
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="Sequential" )
+       fi
+
+       use tk && mycmakeargs+=( -DVTK_GROUP_ENABLE_Tk="YES" )
+
+       if use views; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_ViewsCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ViewsInfovis="WANT"
+               )
+       fi
+
+       if use vtkm; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_AcceleratorsVTKmCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_AcceleratorsVTKmDataModel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_AcceleratorsVTKmFilters="WANT"
+
+                       -DVTKm_NO_INSTALL_README_LICENSE=ON # bug #793221
+                       -DVTKm_Vectorization=native
+               )
+       fi
+
+       if use web; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_WebCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_WebGLExporter="WANT"
+               )
+               use python && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_WebPython="WANT" )
+       fi
+
+       use java && export 
JAVA_HOME="${EPREFIX}/etc/java-config-2/current-system-vm"
+
+       cmake_src_configure
+}
+
+src_compile() {
+       use test && cmake_build VTKData
+       cmake_src_compile
+}
+
+# FIXME: avoid nonfatal?
+# see https://github.com/gentoo/gentoo/pull/22878#discussion_r747204043
+src_test() {
+#      nonfatal virtx cmake_src_test
+       virtx cmake_src_test
+}
+
+src_install() {
+       use web && webapp_src_preinst
+
+       # Stop web page images from being compressed
+       if use doc; then
+               HTML_DOCS=( "${WORKDIR}/html/." )
+       fi
+
+       cmake_src_install
+
+       use java && java-pkg_regjar "${ED}"/usr/share/${PN}/${PN}.jar
+
+       # install examples
+       if use examples; then
+               einfo "Installing examples"
+               mv -v {E,e}xamples || die
+               dodoc -r examples
+               docompress -x /usr/share/doc/${PF}/examples
+
+               einfo "Installing datafiles"
+               insinto /usr/share/${PN}/data
+               doins -r "${S}/.ExternalData"
+       fi
+
+       use python && python_optimize
+
+       use web && webapp_src_install
+}
+
+# webapp.eclass exports these but we want it optional #534036
+pkg_postinst() {
+       use web && webapp_pkg_postinst
+
+       if use examples; then
+               einfo "You can get more and updated examples at"
+               einfo "https://kitware.github.io/vtk-examples/site/";
+       fi
+}
+
+pkg_prerm() {
+       use web && webapp_pkg_prerm
+}

diff --git a/sci-libs/vtk/vtk-9.2.6-r3.ebuild b/sci-libs/vtk/vtk-9.2.6-r3.ebuild
new file mode 100644
index 000000000000..9520c47ec4fd
--- /dev/null
+++ b/sci-libs/vtk/vtk-9.2.6-r3.ebuild
@@ -0,0 +1,747 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+# TODO:
+# - add USE flag for remote modules? Those modules can be downloaded
+#      properly before building.
+# - replace usex by usev where applicable
+
+PYTHON_COMPAT=( python3_{9..11} )
+WEBAPP_OPTIONAL=yes
+WEBAPP_MANUAL_SLOT=yes
+
+inherit check-reqs cmake cuda java-pkg-opt-2 multiprocessing python-single-r1 
toolchain-funcs virtualx webapp
+
+# Short package version
+MY_PV="$(ver_cut 1-2)"
+
+DESCRIPTION="The Visualization Toolkit"
+HOMEPAGE="https://www.vtk.org/";
+SRC_URI="
+       https://www.vtk.org/files/release/${MY_PV}/VTK-${PV}.tar.gz
+       https://www.vtk.org/files/release/${MY_PV}/VTKData-${PV}.tar.gz
+       https://www.vtk.org/files/release/${MY_PV}/VTKDataFiles-${PV}.tar.gz
+       doc? ( 
https://www.vtk.org/files/release/${MY_PV}/vtkDocHtml-${PV}.tar.gz )
+       examples? (
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeData-${PV}.tar.gz
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeDataFiles-${PV}.tar.gz
+       )
+       test? (
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeData-${PV}.tar.gz
+               
https://www.vtk.org/files/release/${MY_PV}/VTKLargeDataFiles-${PV}.tar.gz
+       )
+"
+S="${WORKDIR}/VTK-${PV}"
+
+LICENSE="BSD LGPL-2"
+SLOT="0/${MY_PV}"
+KEYWORDS="~amd64 ~arm ~arm64 ~x86 ~amd64-linux ~x86-linux"
+# TODO: Like to simplifiy these. Mostly the flags related to Groups.
+IUSE="all-modules boost cuda debug doc examples ffmpeg freetype gdal imaging
+       java las +logging mpi mysql odbc openmp openvdb pdal postgres python qt5
+       qt6 +rendering sdl tbb test +threads tk video_cards_nvidia views vtkm 
web"
+
+RESTRICT="!test? ( test )"
+
+REQUIRED_USE="
+       all-modules? (
+               boost ffmpeg freetype gdal imaging las mysql odbc openvdb pdal
+               postgres rendering views
+       )
+       cuda? ( video_cards_nvidia vtkm )
+       java? ( rendering )
+       python? ( ${PYTHON_REQUIRED_USE} )
+       qt5? ( rendering )
+       qt6? ( rendering )
+       sdl? ( rendering )
+       tk? ( python rendering )
+       web? ( python )
+"
+
+# for <pegtl-3 dependency see
+# https://discourse.vtk.org/t/compilation-errors-related-to-pegtl-proj/5929
+# eigen, nlohmann_json, pegtl and utfcpp are referenced in the cmake files
+# and need to be available when VTK consumers configure the dependencies.
+RDEPEND="
+       app-arch/lz4:=
+       app-arch/xz-utils
+       dev-cpp/eigen
+       dev-cpp/nlohmann_json
+       dev-db/sqlite:3
+       dev-libs/double-conversion:=
+       dev-libs/expat
+       dev-libs/icu:=
+       dev-libs/jsoncpp:=
+       >=dev-libs/libfmt-8.1.1:=
+       dev-libs/libxml2:2
+       dev-libs/libzip:=
+       <dev-libs/pegtl-3
+       dev-libs/pugixml
+       dev-libs/utfcpp
+       media-libs/freetype
+       media-libs/libjpeg-turbo
+       >=media-libs/libharu-2.4.2:=
+       media-libs/libogg
+       media-libs/libpng:=
+       media-libs/libtheora
+       media-libs/tiff:=
+       >=sci-libs/cgnslib-4.1.1:=[hdf5,mpi=]
+       sci-libs/hdf5:=[mpi=]
+       sci-libs/proj:=
+       sci-libs/netcdf:=[mpi=]
+       sys-libs/zlib
+       boost? ( dev-libs/boost:=[mpi?] )
+       cuda? ( dev-util/nvidia-cuda-toolkit:= )
+       ffmpeg? ( media-video/ffmpeg:= )
+       freetype? ( media-libs/fontconfig )
+       gdal? ( sci-libs/gdal:= )
+       java? ( >=virtual/jdk-1.8:* )
+       las? ( sci-geosciences/liblas )
+       mpi? ( virtual/mpi[cxx,romio] )
+       mysql? ( dev-db/mariadb-connector-c )
+       odbc? ( dev-db/unixODBC )
+       openvdb? ( media-gfx/openvdb:= )
+       pdal? ( <sci-libs/pdal-2.6.0:= )
+       postgres? ( dev-db/postgresql:= )
+       python? (
+               ${PYTHON_DEPS}
+               $(python_gen_cond_dep 'mpi? ( 
dev-python/mpi4py[${PYTHON_USEDEP}] )')
+       )
+       qt5? (
+               dev-qt/qtcore:5
+               dev-qt/qtopengl:5
+               dev-qt/qtquickcontrols2:5
+               dev-qt/qtsql:5
+               dev-qt/qtwidgets:5
+       )
+       qt6? (
+               dev-qt/qtbase:6[gui,opengl,sql,widgets]
+               dev-qt/qtdeclarative:6[opengl]
+               dev-qt/qtshadertools:6
+               x11-libs/libxkbcommon
+       )
+       sdl? ( media-libs/libsdl2 )
+       rendering? (
+               media-libs/glew:=
+               virtual/opengl
+               x11-libs/gl2ps
+               x11-libs/libICE
+               x11-libs/libXcursor
+               x11-libs/libXext
+       )
+       tbb? ( dev-cpp/tbb:= )
+       tk? ( dev-lang/tk:= )
+       video_cards_nvidia? ( x11-drivers/nvidia-drivers[tools,static-libs] )
+       views? (
+               x11-libs/libICE
+               x11-libs/libXext
+       )
+       web? ( ${WEBAPP_DEPEND} )
+"
+
+# for <pegtl-3 dependency see
+# https://discourse.vtk.org/t/compilation-errors-related-to-pegtl-proj/5929
+DEPEND="
+       ${RDEPEND}
+       dev-cpp/eigen
+       dev-cpp/nlohmann_json
+       <dev-libs/pegtl-3
+       dev-libs/utfcpp
+       test? (
+               media-libs/glew
+               x11-libs/libXcursor
+               rendering? ( media-libs/freeglut )
+       )
+"
+BDEPEND="virtual/pkgconfig"
+
+PATCHES=(
+       
"${FILESDIR}"/${PN}-9.2.2-vtkGeometryFilter-add-missing-mutex-header-file.patch
+       "${FILESDIR}"/${PN}-9.2.2-VTKm-respect-user-CXXFLAGS.patch
+       "${FILESDIR}"/${PN}-9.2.2-link-with-glut-library-for-freeglut.patch
+       
"${FILESDIR}"/${PN}-9.2.5-Add-include-cstdint-to-compile-with-gcc-13.patch
+       "${FILESDIR}"/${PN}-9.2.5-Fix-compilation-error-with-CUDA-12.patch
+       
"${FILESDIR}"/${PN}-9.2.5-More-include-cstdint-to-compile-with-gcc13.patch
+       "${FILESDIR}"/vtk-9.2.6-Java21.patch
+)
+
+DOCS=( CONTRIBUTING.md README.md )
+
+vtk_check_reqs() {
+       local dsk=4096
+       local mem=$(( $(usex cuda 7168 0) ))
+
+       dsk=$(( $(usex doc 3072 0) + ${dsk} ))
+       dsk=$(( $(usex examples 3072 0) + ${dsk} ))
+       dsk=$(( $(usex cuda 8192 0) + ${dsk} ))
+
+       # In case users are not aware of the extra NINJAOPTS, check
+       # for the more common MAKEOPTS, in case NINJAOPTS is empty
+       local jobs=1
+       if [[ -n "${NINJAOPTS}" ]]; then
+               jobs=$(makeopts_jobs "${NINJAOPTS}" "$(get_nproc)")
+       else
+               if [[ -n "${MAKEOPTS}" ]]; then
+                       jobs=$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")
+               fi
+       fi
+       mem=$(( ${mem} * $(( ${jobs} > 4 ? 4 : ${jobs} )) ))
+
+       use cuda && export CHECKREQS_MEMORY=${mem}M
+       export CHECKREQS_DISK_BUILD=${dsk}M
+
+       check-reqs_pkg_${EBUILD_PHASE}
+}
+
+pkg_pretend() {
+       [[ ${MERGE_TYPE} != binary ]] && has openmp && tc-check-openmp
+
+       if [[ $(tc-is-gcc) && $(gcc-majorversion) = 11 ]] && use cuda ; then
+               # FIXME: better use eerror?
+               ewarn "GCC 11 is know to fail building with CUDA support in 
some cases."
+               ewarn "See bug #820593"
+       fi
+
+       if use qt6 && use qt5; then
+               ewarn "Both qt5 and qt6 USE flags have been selected. Using 
qt5!"
+       fi
+
+       # bug #835659
+       if use cuda; then
+               if [[ ${VTK_CUDA_ARCH} = native ]]; then
+                       eerror "Using native CUDA arches is currently broken."
+                       eerror "Please set it to one of the common arch names:"
+                       eerror "kepler, maxwell, pascal, turing or ampere."
+                       die "Please set VTK_CUDA_ARCH environment variable!"
+               fi
+       fi
+
+       vtk_check_reqs
+}
+
+pkg_setup() {
+       [[ ${MERGE_TYPE} != binary ]] && has openmp && tc-check-openmp
+
+       if [[ $(tc-is-gcc) && $(gcc-majorversion) = 11 ]] && use cuda ; then
+               # FIXME: better use eerror?
+               ewarn "GCC 11 is know to fail building with CUDA support in 
some cases."
+               ewarn "See bug #820593"
+       fi
+
+       if use qt6 && use qt5; then
+               ewarn "Both qt5 and qt6 USE flags have been selected. Using 
qt5!"
+       fi
+
+       # bug #835659
+       if use cuda; then
+               if [[ ${VTK_CUDA_ARCH} = native ]]; then
+                       eerror "Using native CUDA arches is currently broken."
+                       eerror "Please set it to one of the common arch names:"
+                       eerror "kepler, maxwell, pascal, turing or ampere."
+                       die "Please set VTK_CUDA_ARCH environment variable!"
+               fi
+       fi
+
+       vtk_check_reqs
+
+       use java && java-pkg-opt-2_pkg_setup
+       use python && python-single-r1_pkg_setup
+       use web && webapp_pkg_setup
+}
+
+# Note: The following libraries are marked as internal by kitware
+#      and can currently not unbundled:
+#      diy2, exodusII, fides, h5part, kissfft, loguru, verdict, vpic,
+#      vtkm, xdmf{2,3}, zfp
+# TODO: cli11 (::guru), exprtk, ioss
+# Note: As of v9.2.2 we no longer drop bundled libraries, when using system
+# libraries. This just saves a little space. CMake logic of VTK on ThirdParty
+# libraries avoids automagic builds, so deletion is not needed to catch these.
+src_prepare() {
+       if use doc; then
+               einfo "Removing .md5 files from documents."
+               rm -f "${WORKDIR}"/html/*.md5 || die "Failed to remove 
superfluous hashes"
+               sed -e "s|\${VTK_BINARY_DIR}/Utilities/Doxygen/doc|${WORKDIR}|" 
\
+                       -i Utilities/Doxygen/CMakeLists.txt || die
+       fi
+
+       cmake_src_prepare
+
+       if use cuda; then
+               cuda_add_sandbox -w
+               cuda_src_prepare
+       fi
+
+       if use test; then
+               ebegin "Copying data files to ${BUILD_DIR}"
+               mkdir -p "${BUILD_DIR}/ExternalData" || die
+               pushd "${BUILD_DIR}/ExternalData" >/dev/null || die
+               ln -sf ../../VTK-${PV}/.ExternalData/README.rst . || die
+               ln -sf ../../VTK-${PV}/.ExternalData/SHA512 . || die
+               popd >/dev/null || die
+               eend "$?"
+       fi
+}
+
+# TODO: check these and consider to use them
+#      VTK_BUILD_SCALED_SOA_ARRAYS
+#      VTK_DISPATCH_{AOS,SOA,TYPED}_ARRAYS
+src_configure() {
+       local mycmakeargs=(
+               -DCMAKE_INSTALL_LICENSEDIR="share/${PN}/licenses"
+
+               -DVTK_ANDROID_BUILD=OFF
+               -DVTK_IOS_BUILD=OFF
+
+               -DVTK_BUILD_ALL_MODULES=$(usex all-modules ON OFF)
+               # we use the pre-built documentation and install these with 
USE=doc
+               -DVTK_BUILD_DOCUMENTATION=OFF
+               -DVTK_BUILD_EXAMPLES=$(usex examples ON OFF)
+
+               # no package in the tree: https://github.com/LLNL/conduit
+               -DVTK_ENABLE_CATALYST=OFF
+               -DVTK_ENABLE_KITS=OFF
+               -DVTK_ENABLE_LOGGING=$(usex logging ON OFF)
+               # defaults to ON: USE flag for this?
+               -DVTK_ENABLE_REMOTE_MODULES=OFF
+
+               # disable fetching files during build
+               -DVTK_FORBID_DOWNLOADS=ON
+
+               -DVTK_GROUP_ENABLE_Imaging=$(usex imaging "YES" "DEFAULT")
+               -DVTK_GROUP_ENABLE_Rendering=$(usex rendering "YES" "DEFAULT")
+               -DVTK_GROUP_ENABLE_StandAlone="YES"
+               -DVTK_GROUP_ENABLE_Views=$(usex views "YES" "DEFAULT")
+               -DVTK_GROUP_ENABLE_Web=$(usex web "YES" "DEFAULT")
+
+               -DVTK_INSTALL_SDK=ON
+
+               -DVTK_MODULE_ENABLE_VTK_IOCGNSReader="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOExportPDF="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOLAS=$(usex las "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_IONetCDF="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOOggTheora="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOOpenVDB=$(usex openvdb "WANT" 
"DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_IOSQL="WANT" # sqlite
+               -DVTK_MODULE_ENABLE_VTK_IOPDAL=$(usex pdal "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_IOXML="WANT"
+               -DVTK_MODULE_ENABLE_VTK_IOXMLParser="WANT"
+               -DVTK_MODULE_ENABLE_VTK_RenderingFreeType=$(usex freetype 
"WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_RenderingFreeTypeFontConfig=$(usex 
freetype "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_cgns="WANT"
+               -DVTK_MODULE_ENABLE_VTK_doubleconversion="WANT"
+               -DVTK_MODULE_ENABLE_VTK_eigen="WANT"
+               -DVTK_MODULE_ENABLE_VTK_expat="WANT"
+               -DVTK_MODULE_ENABLE_VTK_fmt="WANT"
+               -DVTK_MODULE_ENABLE_VTK_freetype="WANT"
+               -DVTK_MODULE_ENABLE_VTK_hdf5="WANT"
+               -DVTK_MODULE_ENABLE_VTK_jpeg="WANT"
+               -DVTK_MODULE_ENABLE_VTK_jsoncpp="WANT"
+               -DVTK_MODULE_ENABLE_VTK_libharu="WANT"
+               -DVTK_MODULE_ENABLE_VTK_libproj="WANT"
+               -DVTK_MODULE_ENABLE_VTK_libxml2="WANT"
+               -DVTK_MODULE_ENABLE_VTK_lz4="WANT"
+               -DVTK_MODULE_ENABLE_VTK_lzma="WANT"
+               -DVTK_MODULE_ENABLE_VTK_netcdf="WANT"
+               -DVTK_MODULE_ENABLE_VTK_nlohmannjson="WANT"
+               -DVTK_MODULE_ENABLE_VTK_ogg="WANT"
+               -DVTK_MODULE_ENABLE_VTK_pegtl="WANT"
+               -DVTK_MODULE_ENABLE_VTK_png="WANT"
+               -DVTK_MODULE_ENABLE_VTK_pugixml="WANT"
+               -DVTK_MODULE_ENABLE_VTK_sqlite="WANT"
+               -DVTK_MODULE_ENABLE_VTK_theora="WANT"
+               -DVTK_MODULE_ENABLE_VTK_tiff="WANT"
+               -DVTK_MODULE_ENABLE_VTK_utf8="WANT"
+               -DVTK_MODULE_ENABLE_VTK_vtkm=$(usex vtkm "WANT" "DEFAULT")
+               -DVTK_MODULE_ENABLE_VTK_zlib="WANT"
+
+               # not packaged in Gentoo
+               -DVTK_MODULE_USE_EXTERNAL_VTK_exprtk=OFF
+               -DVTK_MODULE_USE_EXTERNAL_VTK_ioss=OFF
+               -DVTK_MODULE_USE_EXTERNAL_VTK_verdict=OFF
+
+               -DVTK_RELOCATABLE_INSTALL=ON
+
+               -DVTK_SMP_ENABLE_OPENMP=$(usex openmp ON OFF)
+               -DVTK_SMP_ENABLE_STDTHREAD=$(usex threads ON OFF)
+               -DVTK_SMP_ENABLE_TBB=$(usex tbb ON OFF)
+
+               -DVTK_UNIFIED_INSTALL_TREE=ON
+
+               -DVTK_USE_CUDA=$(usex cuda ON OFF)
+               # use system libraries where possible
+               -DVTK_USE_EXTERNAL=ON
+               # avoid finding package from either ::guru or ::sci
+               -DVTK_USE_MEMKIND=OFF
+               -DVTK_USE_MPI=$(usex mpi ON OFF)
+               -DVTK_USE_TK=$(usex tk ON OFF)
+               -DVTK_USE_X=ON
+
+               -DVTK_WHEEL_BUILD=OFF
+
+               -DVTK_WRAP_JAVA=$(usex java ON OFF)
+               -DVTK_WRAP_PYTHON=$(usex python ON OFF)
+       )
+
+       if use all-modules; then
+               mycmakeargs+=(
+                       # no package in ::gentoo
+                       -DVTK_ENABLE_OSPRAY=OFF
+                       # TODO: some of these are tied to the 
VTK_ENABLE_REMOTE_MODULES
+                       # option. Check whether we can download them clean and 
enable
+                       # them.
+                       -DVTK_MODULE_ENABLE_VTK_DomainsMicroscopy="NO"
+                       -DVTK_MODULE_ENABLE_VTK_fides="NO"
+                       -DVTK_MODULE_ENABLE_VTK_FiltersOpenTURNS="NO"
+                       -DVTK_MODULE_ENABLE_VTK_IOADIOS2="NO"
+                       -DVTK_MODULE_ENABLE_VTK_IOFides="NO"
+
+                       -DVTK_MODULE_ENABLE_VTK_RenderingOpenVR="NO"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingOpenXR="NO"
+
+                       # available in ::guru, so avoid  detection if installed
+                       -DVTK_MODULE_USE_EXTERNAL_VTK_cli11=OFF
+               )
+       fi
+
+       if use boost; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_InfovisBoost="WANT"
+                       
-DVTK_MODULE_ENABLE_VTK_InfovisBoostGraphAlgorithms="WANT"
+               )
+       fi
+
+       # TODO: checks this on updates of nvidia-cuda-toolkit and update
+       # the list of available arches if necessary, i.e. add new arches
+       # once they are released at the end of the list before all.
+       # See https://en.wikipedia.org/wiki/CUDA#GPUs_supported
+       # CUDA 11.8 supports Ada Lovelace and Hopper arches, but cmake,
+       # as of 3.25.1 doesn't recognize these keywords.
+       # FIXME: better use numbers than names?
+       if use cuda; then
+               local cuda_arch=
+               case ${VTK_CUDA_ARCH:-native} in
+                       # we ignore fermi arch, because current 
nvidia-cuda-toolkit-11*
+                       # no longer supports it
+                       kepler|maxwell|pascal|volta|turing|ampere|all)
+                               cuda_arch=${VTK_CUDA_ARCH}
+                               ;;
+#                      native)
+#                              ewarn "If auto detection fails for you, please 
try and export the"
+#                              ewarn "VTK_CUDA_ARCH environment variable to 
one of the common arch"
+#                              ewarn "names: kepler, maxwell, pascal, volta, 
turing, ampere or all."
+#                              cuda_arch=native
+#                              ;;
+                       *)
+                               eerror "Please properly set the VTK_CUDA_ARCH 
environment variable to"
+                               eerror "one of: kepler, maxwell, pascal, volta, 
turing, ampere, all"
+                               die "Invalid CUDA architecture given: 
'${VTK_CUDA_ARCH}'!"
+                               ;;
+               esac
+               ewarn "Using CUDA architecture '${cuda_arch}'"
+
+               mycmakeargs+=( -DVTKm_CUDA_Architecture=${cuda_arch} )
+       fi
+
+       if use debug; then
+               mycmakeargs+=(
+                       -DVTK_DEBUG_LEAKS=ON
+                       -DVTK_DEBUG_MODULE=ON
+                       -DVTK_DEBUG_MODULE_ALL=ON
+                       -DVTK_ENABLE_SANITIZER=ON
+                       -DVTK_EXTRA_COMPILER_WARNINGS=ON
+                       -DVTK_WARN_ON_DISPATCH_FAILURE=ON
+               )
+               if use rendering; then
+                       mycmakeargs+=( 
-DVTK_OPENGL_ENABLE_STREAM_ANNOTATIONS=ON )
+               fi
+       fi
+
+       if use examples || use test; then
+               mycmakeargs+=( -DVTK_USE_LARGE_DATA=ON )
+       fi
+
+       if use ffmpeg; then
+               mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_IOFFMPEG="WANT" )
+               if use rendering; then
+                       mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingFFMPEGOpenGL2="WANT" )
+               fi
+       fi
+
+       if use gdal; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_GeovisGDAL="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOGDAL="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOGeoJSON="WANT"
+               )
+       fi
+
+       if use imaging; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_ImagingColor="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingFourier="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingGeneral="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingHybrid="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingMath="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingMorphological="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingSources="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingStatistics="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ImagingStencil="WANT"
+               )
+               use rendering && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingImage="WANT" )
+       fi
+
+       if ! use java && ! use python; then
+               # defaults to ON
+               mycmakeargs+=( -DVTK_ENABLE_WRAPPING=OFF )
+       fi
+
+       if use java; then
+               mycmakeargs+=(
+                       -DCMAKE_INSTALL_JARDIR="share/${PN}"
+                       -DVTK_ENABLE_WRAPPING=ON
+                       -DVTK_MODULE_ENABLE_VTK_Java="WANT"
+               )
+       fi
+
+       if use mpi; then
+               mycmakeargs+=(
+                       -DVTK_GROUP_ENABLE_MPI="YES"
+                       -DVTK_MODULE_ENABLE_VTK_IOH5part="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOMPIParallel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOParallel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOParallelNetCDF="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_IOParallelXML="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ParallelMPI="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_h5part="WANT"
+                       -DVTK_MODULE_USE_EXTERNAL_VTK_verdict=OFF
+               )
+               use imaging && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_IOMPIImage="WANT" )
+               use python && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_ParallelMPI4Py="WANT" )
+               if use rendering; then
+                       mycmakeargs+=(
+                               -DVTK_MODULE_ENABLE_VTK_RenderingParallel="WANT"
+                               
-DVTK_MODULE_ENABLE_VTK_RenderingParallelLIC="WANT"
+                       )
+               fi
+               use vtkm && mycmakeargs+=( -DVTKm_ENABLE_MPI=ON )
+       else
+               mycmakeargs+=( -DVTK_GROUP_ENABLE_MPI="NO" )
+       fi
+
+       use mysql && mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_IOMySQL="WANT" )
+       use odbc && mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_IOODBC="WANT" )
+       use openvdb && mycmakeargs+=( 
-DOpenVDB_CMAKE_PATH="${ESYSROOT}/usr/$(get_libdir)/cmake/OpenVDB" )
+       use postgres && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_IOPostgreSQL="WANT" )
+
+       if use python; then
+               mycmakeargs+=(
+                       -DPython3_EXECUTABLE="${PYTHON}"
+                       -DVTK_ENABLE_WRAPPING=ON
+                       -DVTK_MODULE_ENABLE_VTK_Python="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_PythonInterpreter="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_WrappingPythonCore="WANT"
+                       
-DVTK_PYTHON_SITE_PACKAGES_SUFFIX="lib/${EPYTHON}/site-packages"
+               )
+               use rendering && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_PythonContext2D="WANT" )
+       fi
+
+       if use qt5 && use qt6; then
+               # prefer Qt5: https://wiki.gentoo.org/wiki/Project:qt/Policies
+               mycmakeargs+=(
+                       
-DCMAKE_INSTALL_QMLDIR="${EPREFIX}/usr/$(get_libdir)/qt5/qml"
+                       -DVTK_QT_VERSION="5"
+               )
+       else
+               if use qt5; then
+                       mycmakeargs+=(
+                               
-DCMAKE_INSTALL_QMLDIR="${EPREFIX}/usr/$(get_libdir)/qt5/qml"
+                               -DVTK_QT_VERSION="5"
+                       )
+               elif use qt6; then
+                       mycmakeargs+=(
+                               
-DCMAKE_INSTALL_QMLDIR="${EPFREIX}/usr/$(get_libdir)/qt6/qml"
+                               -DVTK_QT_VERSION="6"
+                       )
+               else
+                       mycmakeargs+=( -DVTK_GROUP_ENABLE_Qt="NO" )
+               fi
+       fi
+
+       if use qt5 || use qt6; then
+               mycmakeargs+=(
+                       -DVTK_GROUP_ENABLE_Qt:STRING="YES"
+                       -DVTK_MODULE_ENABLE_VTK_GUISupportQt="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_GUISupportQtQuick="WANT"
+               )
+               if use mysql || use postgres; then
+                       mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_GUISupportQtSQL="WANT" )
+               fi
+               if use rendering; then
+                       mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingQt="WANT" )
+               fi
+               if use views; then
+                       mycmakeargs+=( -DVTK_MODULE_ENABLE_VTK_ViewsQt="WANT" )
+               fi
+       fi
+
+       if use rendering; then
+               mycmakeargs+=(
+                       -DVTK_ENABLE_OSPRAY=OFF
+
+                       -DVTK_MODULE_ENABLE_VTK_IOExportGL2PS="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingAnnotation="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingContext2D="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingContextOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingExternal="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingGL2PSOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingHyperTreeGrid="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingLICOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingLOD="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingLabel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingMatplotlib="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingRayTracing="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingSceneGraph="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingUI="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingVolume="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingVolumeAMR="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_RenderingVolumeOpenGL2="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_gl2ps="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_glew="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_opengl="WANT"
+
+                       -DVTK_USE_SDL2=$(usex sdl "YES" "NO")
+               )
+               use tk && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingTk="WANT" )
+               use views && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_ViewsContext2D="WANT" )
+               use web && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_RenderingVtkJS="WANT" )
+       fi
+
+       # Testing has been changed in 9.2.5: it is now allowed without
+       # requiring to download, if the data files are available locally!
+       if use test; then
+               mycmakeargs+=(
+                       -DVTK_BUILD_TESTING=ON
+                       # disable fetching data files for the default 'all' 
target
+                       -DVTK_DATA_EXCLUDE_FROM_ALL=ON
+
+                       # requested even if all use flags are off
+                       -DVTK_MODULE_ENABLE_VTK_octree="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ViewsCore="WANT"
+
+                       # available in ::guru, so avoid  detection if installed
+                       -DVTK_MODULE_USE_EXTERNAL_VTK_cli11=OFF
+               )
+       else
+               mycmakeargs+=( -DVTK_BUILD_TESTING=OFF )
+       fi
+
+       # FIXME: upstream provides 4 threading models, as of 9.1.0. These are
+       # sequential, stdthread, openmp and tbb. AFAICS all of them can be
+       # enabled at the same time. Sequential and Stdthread are enabled by
+       # default. The default selected type for the build is sequential.
+       # Assuming sequential < stdpthread < openmp < tbb wrt speed, although
+       # this is dependent on the actual scenario where threading is used.
+       if use tbb; then
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="TBB" )
+       elif use openmp; then
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="OpenMP" )
+       elif use threads; then
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="STDThread" )
+       else
+               mycmakeargs+=( -DVTK_SMP_IMPLEMENTATION_TYPE="Sequential" )
+       fi
+
+       use tk && mycmakeargs+=( -DVTK_GROUP_ENABLE_Tk="YES" )
+
+       if use views; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_ViewsCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_ViewsInfovis="WANT"
+               )
+       fi
+
+       if use vtkm; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_AcceleratorsVTKmCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_AcceleratorsVTKmDataModel="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_AcceleratorsVTKmFilters="WANT"
+
+                       -DVTKm_NO_INSTALL_README_LICENSE=ON # bug #793221
+                       -DVTKm_Vectorization=native
+               )
+       fi
+
+       if use web; then
+               mycmakeargs+=(
+                       -DVTK_MODULE_ENABLE_VTK_WebCore="WANT"
+                       -DVTK_MODULE_ENABLE_VTK_WebGLExporter="WANT"
+               )
+               use python && mycmakeargs+=( 
-DVTK_MODULE_ENABLE_VTK_WebPython="WANT" )
+       fi
+
+       use java && export 
JAVA_HOME="${EPREFIX}/etc/java-config-2/current-system-vm"
+
+       cmake_src_configure
+}
+
+src_compile() {
+       use test && cmake_build VTKData
+       cmake_src_compile
+}
+
+# FIXME: avoid nonfatal?
+# see https://github.com/gentoo/gentoo/pull/22878#discussion_r747204043
+src_test() {
+#      nonfatal virtx cmake_src_test
+       virtx cmake_src_test
+}
+
+src_install() {
+       use web && webapp_src_preinst
+
+       # Stop web page images from being compressed
+       if use doc; then
+               HTML_DOCS=( "${WORKDIR}/html/." )
+       fi
+
+       cmake_src_install
+
+       use java && java-pkg_regjar "${ED}"/usr/share/${PN}/${PN}.jar
+
+       # install examples
+       if use examples; then
+               einfo "Installing examples"
+               mv -v {E,e}xamples || die
+               dodoc -r examples
+               docompress -x /usr/share/doc/${PF}/examples
+
+               einfo "Installing datafiles"
+               insinto /usr/share/${PN}/data
+               doins -r "${S}/.ExternalData"
+       fi
+
+       use python && python_optimize
+
+       use web && webapp_src_install
+}
+
+# webapp.eclass exports these but we want it optional #534036
+pkg_postinst() {
+       use web && webapp_pkg_postinst
+
+       if use examples; then
+               einfo "You can get more and updated examples at"
+               einfo "https://kitware.github.io/vtk-examples/site/";
+       fi
+}
+
+pkg_prerm() {
+       use web && webapp_pkg_prerm
+}

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