vcpkg/ports/openvdb/0003-fix-cmake.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f2e8c2a..749e12c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -353,14 +353,10 @@ endif()
 
 if(OPENVDB_INSTALL_CMAKE_MODULES)
   set(OPENVDB_CMAKE_MODULES
-    cmake/FindBlosc.cmake
     cmake/FindCppUnit.cmake
     cmake/FindJemalloc.cmake
-    cmake/FindIlmBase.cmake
     cmake/FindLog4cplus.cmake
-    cmake/FindOpenEXR.cmake
     cmake/FindOpenVDB.cmake
-    cmake/FindTBB.cmake
     cmake/OpenVDBGLFW3Setup.cmake
     cmake/OpenVDBHoudiniSetup.cmake
     cmake/OpenVDBMayaSetup.cmake
diff --git a/cmake/FindOpenVDB.cmake b/cmake/FindOpenVDB.cmake
index b065192..7549843 100644
--- a/cmake/FindOpenVDB.cmake
+++ b/cmake/FindOpenVDB.cmake
@@ -224,8 +224,9 @@ foreach(COMPONENT ${OpenVDB_FIND_COMPONENTS})
     ${OPENVDB_${COMPONENT}_ROOT}
     ${OPENVDB_${COMPONENT}_INCLUDEDIR}
   )
-  list(REMOVE_DUPLICATES _VDB_COMPONENT_SEARCH_DIRS)
-
+  if(_VDB_COMPONENT_SEARCH_DIRS)
+	list(REMOVE_DUPLICATES _VDB_COMPONENT_SEARCH_DIRS)
+  endif()
   # Look for a standard header files.
   if(${COMPONENT} STREQUAL "openvdb")
     # Look for a standard OpenVDB header file.
@@ -429,8 +430,8 @@ endif()
 
 # Add standard dependencies
 
-find_package(IlmBase REQUIRED COMPONENTS Half)
-find_package(TBB REQUIRED COMPONENTS tbb)
+find_package(IlmBase CONFIG REQUIRED)
+find_package(TBB CONFIG REQUIRED)
 find_package(ZLIB REQUIRED)
 
 if(NOT OPENVDB_USE_STATIC_LIBS AND NOT Boost_USE_STATIC_LIBS)
@@ -540,7 +541,7 @@ if(NOT OPENVDB_USE_STATIC_LIBS)
 endif()
 
 if(OpenVDB_USES_BLOSC)
-  find_package(Blosc REQUIRED)
+  find_package(blosc CONFIG REQUIRED)
 endif()
 
 if(OpenVDB_USES_LOG4CPLUS)
@@ -548,8 +549,8 @@ if(OpenVDB_USES_LOG4CPLUS)
 endif()
 
 if(OpenVDB_USES_EXR)
-  find_package(IlmBase REQUIRED)
-  find_package(OpenEXR REQUIRED)
+  find_package(IlmBase CONFIG REQUIRED)
+  find_package(OpenEXR CONFIG REQUIRED)
 endif()
 
 if(UNIX)
@@ -610,7 +611,7 @@ set(_OPENVDB_HIDDEN_DEPENDENCIES)
 
 if(NOT OPENVDB_USE_STATIC_LIBS)
   if(OpenVDB_USES_BLOSC)
-    list(APPEND _OPENVDB_HIDDEN_DEPENDENCIES Blosc::blosc)
+    list(APPEND _OPENVDB_HIDDEN_DEPENDENCIES blosc)
   endif()
 
   list(APPEND _OPENVDB_HIDDEN_DEPENDENCIES ZLIB::ZLIB)
diff --git a/openvdb/CMakeLists.txt b/openvdb/CMakeLists.txt
index 45b302c..d75cfd1 100644
--- a/openvdb/CMakeLists.txt
+++ b/openvdb/CMakeLists.txt
@@ -47,7 +47,7 @@ message(STATUS "----------------------------------------------------")
 ##########################################################################
 
 # Collect and configure lib dependencies
-
+if(0)
 if(USE_EXR)
   find_package(IlmBase ${MINIMUM_ILMBASE_VERSION} REQUIRED)
   find_package(OpenEXR ${MINIMUM_OPENEXR_VERSION} REQUIRED)
@@ -57,8 +57,14 @@ if(USE_EXR)
         "is deprecated and will be removed.")
     endif()
   endif()
+endif()
+endif()
+
+if(USE_EXR)
+  find_package(IlmBase CONFIG REQUIRED)
+  find_package(OpenEXR CONFIG REQUIRED)
 else()
-  find_package(IlmBase ${MINIMUM_ILMBASE_VERSION} REQUIRED COMPONENTS Half)
+  find_package(IlmBase CONFIG REQUIRED)
 endif()
 
 if(OPENVDB_FUTURE_DEPRECATION AND FUTURE_MINIMUM_ILMBASE_VERSION)
@@ -68,7 +74,7 @@ if(OPENVDB_FUTURE_DEPRECATION AND FUTURE_MINIMUM_ILMBASE_VERSION)
   endif()
 endif()
 
-find_package(TBB ${MINIMUM_TBB_VERSION} REQUIRED COMPONENTS tbb)
+find_package(TBB CONFIG REQUIRED)
 
 if(OPENVDB_FUTURE_DEPRECATION AND FUTURE_MINIMUM_TBB_VERSION)
   if(${Tbb_VERSION} VERSION_LESS FUTURE_MINIMUM_TBB_VERSION)
@@ -84,14 +90,7 @@ if(USE_LOG4CPLUS)
 endif()
 
 if(USE_BLOSC)
-  find_package(Blosc ${MINIMUM_BLOSC_VERSION} REQUIRED)
-  if(Blosc_FOUND AND Blosc_VERSION VERSION_GREATER MINIMUM_BLOSC_VERSION)
-    message(WARNING "The version of Blosc located is greater than ${MINIMUM_BLOSC_VERSION}. "
-      "There have been reported issues with using later versions of Blosc with OpenVDB. "
-      "OpenVDB has been tested fully against Blosc ${MINIMUM_BLOSC_VERSION}, it is "
-      "recommended that you use this version where possible."
-    )
-  endif()
+  find_package(blosc CONFIG REQUIRED)
 else()
   message(WARNING "Blosc support is disabled. It is strongly recommended to "
     "enable blosc for optimal builds of OpenVDB and to support compatible "
@@ -163,7 +162,7 @@ endif()
 # See FindOpenVDB.cmake
 
 if(USE_BLOSC)
-  list(APPEND OPENVDB_CORE_DEPENDENT_LIBS Blosc::blosc)
+  list(APPEND OPENVDB_CORE_DEPENDENT_LIBS blosc)
 endif()
 
 list(APPEND OPENVDB_CORE_DEPENDENT_LIBS
diff --git a/openvdb/cmd/CMakeLists.txt b/openvdb/cmd/CMakeLists.txt
index 2b831bb..a13b63b 100644
--- a/openvdb/cmd/CMakeLists.txt
+++ b/openvdb/cmd/CMakeLists.txt
@@ -50,7 +50,7 @@ if(CONCURRENT_MALLOC STREQUAL "Jemalloc")
   find_package(Jemalloc REQUIRED)
   list(APPEND OPENVDB_BINARIES_DEPENDENT_LIBS Jemalloc::jemalloc)
 elseif(CONCURRENT_MALLOC STREQUAL "Tbbmalloc")
-  find_package(TBB ${MINIMUM_TBB_VERSION} REQUIRED COMPONENTS tbbmalloc)
+  find_package(TBB CONFIG REQUIRED)
   list(APPEND OPENVDB_BINARIES_DEPENDENT_LIBS TBB::tbbmalloc)
 endif()
 
@@ -120,8 +120,8 @@ endif()
 #### vdb_render
 
 if(OPENVDB_BUILD_VDB_RENDER)
-  find_package(IlmBase ${MINIMUM_ILMBASE_VERSION} REQUIRED COMPONENTS Half Iex IlmThread Imath)
-  find_package(OpenEXR ${MINIMUM_OPENEXR_VERSION} REQUIRED COMPONENTS IlmImf)
+  find_package(IlmBase CONFIG REQUIRED)
+  find_package(OpenEXR CONFIG REQUIRED)
 
   set(VDB_RENDER_SOURCE_FILES openvdb_render.cc)
   add_executable(vdb_render ${VDB_RENDER_SOURCE_FILES})