vcpkg/ports/vtk/vtkm.patch

diff --git a/Accelerators/Vtkm/CMakeLists.txt b/Accelerators/Vtkm/CMakeLists.txt
index 4297575bd..643df6fd5 100644
--- a/Accelerators/Vtkm/CMakeLists.txt
+++ b/Accelerators/Vtkm/CMakeLists.txt
@@ -14,8 +14,10 @@
 ##
 ##=============================================================================
 
-list(INSERT 0 CMAKE_MODULE_PATH
-  "${VTK_SOURCE_DIR}/ThirdParty/vtkm/vtkvtkm/vtk-m/CMake")
+find_package(VTKm CONFIG REQUIRED)
+
+#list(INSERT 0 CMAKE_MODULE_PATH
+#  "${VTK_SOURCE_DIR}/ThirdParty/vtkm/vtkvtkm/vtk-m/CMake")
 
 set(sources
   vtkmlib/ArrayConvertersReal.cxx
diff --git a/Accelerators/Vtkm/CMakeLists.txt b/Accelerators/Vtkm/CMakeLists.txt
index a01a6bda3..889c87ebb 100644
--- a/Accelerators/Vtkm/CMakeLists.txt	
+++ b/Accelerators/Vtkm/CMakeLists.txt
@@ -126,9 +126,9 @@ vtkm_add_target_information(${vtkm_accel_target}
                             MODIFY_CUDA_FLAGS
                             DEVICE_SOURCES ${sources})
 
-vtk_module_set_property(VTK::AcceleratorsVTKm
-  PROPERTY  JOB_POOL_COMPILE
-  VALUE     vtkm_pool)
+#vtk_module_set_property(VTK::AcceleratorsVTKm
+#  PROPERTY  JOB_POOL_COMPILE
+#  VALUE     vtkm_pool)
 vtk_module_link(VTK::AcceleratorsVTKm
   PRIVATE
     vtkm_worklet
diff --git a/CMake/FindVTKm.cmake b/CMake/FindVTKm.cmake
new file mode 100644
index 000000000..c0fe00c0e
--- /dev/null
+++ b/CMake/FindVTKm.cmake
@@ -0,0 +1 @@
+find_package(VTKm CONFIG REQUIRED)
\ No newline at end of file
diff --git a/CMake/vtkCompilerPlatformFlags.cmake b/CMake/vtkCompilerPlatformFlags.cmake
index b0bdba1e6..69c570a25 100644
--- a/CMake/vtkCompilerPlatformFlags.cmake
+++ b/CMake/vtkCompilerPlatformFlags.cmake
@@ -107,7 +107,7 @@ if(MSVC)
   if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
     STRING(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
   else()
-    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4 /bigobj")
   endif()
 endif()
 
diff --git a/ThirdParty/vtkm/CMakeLists.txt b/ThirdParty/vtkm/CMakeLists.txt
index 5817d42f8..bc5a33d93 100644
--- a/ThirdParty/vtkm/CMakeLists.txt
+++ b/ThirdParty/vtkm/CMakeLists.txt
@@ -1,6 +1,47 @@
-vtk_module_third_party_internal(
-  LICENSE_FILES "vtkvtkm/vtk-m/LICENSE.txt"
-  VERSION       "master"
-  SUBDIRECTORY  vtkvtkm
-  STANDARD_INCLUDE_DIRS
-  INTERFACE)
+#vtk_module_third_party_internal(
+#  LICENSE_FILES "vtkvtkm/vtk-m/LICENSE.txt"
+#  VERSION       "master"
+#  SUBDIRECTORY  vtkvtkm
+#  STANDARD_INCLUDE_DIRS
+#  INTERFACE)
+
+message(STATUS "VTK_MODULE_USE_EXTERNAL_VTK_vtkm: ${VTK_MODULE_USE_EXTERNAL_VTK_vtkm}")
+if(TRUE)
+    message(STATUS "Searching for external VTKm")
+    find_package(VTKm CONFIG REQUIRED)
+    if(TARGET vtkm_compiler_flags)
+        get_target_property(VTKm_INCLUDE_DIRS vtkm_compiler_flags INTERFACE_INCLUDE_DIRECTORIES)
+        message(STATUS "INCLUDE: ${VTKm_INCLUDE_DIRS}")
+        get_target_property(VTKm_DIY_INCLUDE_DIRS vtkm_diy INTERFACE_INCLUDE_DIRECTORIES)
+        get_target_property(VTKm_OPTION_INCLUDE_DIRS vtkm_optionparser INTERFACE_INCLUDE_DIRECTORIES)
+        get_target_property(VTKm_TAO_INCLUDE_DIRS vtkm_taotuple INTERFACE_INCLUDE_DIRECTORIES)
+        if(MSVC)
+            set(VTKm_DEFINITIONS /bigobj)
+        endif()
+    else()
+        message(FATAL_ERROR "VTKM target missing")
+    endif()
+    if(VTKM_FOUND)
+        message(STATUS "Found VTKm")
+    endif()
+endif()
+
+vtk_module_third_party(
+  INTERNAL
+    HEADER_ONLY
+    LICENSE_FILES "vtkvtkm/vtk-m/LICENSE.txt"
+    VERSION       "master"
+    SUBDIRECTORY  vtkvtkm
+    STANDARD_INCLUDE_DIRS
+    INTERFACE
+  EXTERNAL
+    PACKAGE VTKm
+    TARGETS vtkm_cont vtkm_filter vtkm_diy vtkm_optionparser vtkm_taotuple
+    #LIBRARIES vtkm_cont vtkm_filter vtkm_diy vtkm_optionparser vtkm_taotuple
+    INCLUDE_DIRS VTKm_INCLUDE_DIRS VTKm_DIY_INCLUDE_DIRS VTKm_OPTION_INCLUDE_DIRS VTKm_TAO_INCLUDE_DIRS)
+# configure_file(
+  # "${CMAKE_CURRENT_SOURCE_DIR}/vtk_utf8.h.in"
+  # "${CMAKE_CURRENT_BINARY_DIR}/vtk_utf8.h")
+
+# vtk_module_install_headers(
+  # FILES "${CMAKE_CURRENT_BINARY_DIR}/vtk_utf8.h")
diff --git a/ThirdParty/vtkm/vtk.module b/ThirdParty/vtkm/vtk.module
index a8e4dad0f..c7bbbf0e8 100644
--- a/ThirdParty/vtkm/vtk.module
+++ b/ThirdParty/vtkm/vtk.module
@@ -3,5 +3,7 @@ NAME
 PRIVATE_DEPENDS
   # While not needed to satisfy symbols, this is necessary to guarantee that
   # VTK_SMP_IMPLEMENTATION_TYPE is available when configuring vtk-m.
-  VTK::CommonCore
+  # VTK::CommonCore
+LIBRARY_NAME
+  VTKm
 THIRD_PARTY
diff --git a/CMake/vtk-config.cmake.in b/CMake/vtk-config.cmake.in
index 1ecfde326..ae5576e66 100644
--- a/CMake/vtk-config.cmake.in	
+++ b/CMake/vtk-config.cmake.in
@@ -114,9 +114,7 @@ set("${CMAKE_FIND_PACKAGE_NAME}_AVAILABLE_COMPONENTS" "@vtk_all_components@")
 unset("${CMAKE_FIND_PACKAGE_NAME}_FOUND")
 set("${CMAKE_FIND_PACKAGE_NAME}_HAS_VTKm" "@vtk_has_vtkm@")
 if (${CMAKE_FIND_PACKAGE_NAME}_HAS_VTKm)
-  find_package(VTKm
-    PATHS "${CMAKE_CURRENT_LIST_DIR}/vtkm"
-    NO_DEFAULT_PATH)
+  find_package(VTKm CONFIG REQUIRED)
   if (NOT VTKm_FOUND)
     set("${CMAKE_FIND_PACKAGE_NAME}_FOUND" 0)
   endif ()