Cleanup: deduplicate OpenVDB library definitions/include/libs logic

This will more important when we start using OpenVDB in more modules.

CMakeLists.txt

@@ -899,6 +899,28 @@ if(NOT WITH_SYSTEM_EIGEN3)
   set(EIGEN3_INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/extern/Eigen3)
 endif()
 
+if(WITH_OPENVDB)
+  list(APPEND OPENVDB_DEFINITIONS -DWITH_OPENVDB)
+
+  if(WITH_OPENVDB_3_ABI_COMPATIBLE)
+    list(APPEND OPENVDB_DEFINITIONS -DOPENVDB_3_ABI_COMPATIBLE)
+  endif()
+
+  list(APPEND OPENVDB_INCLUDE_DIRS
+    ${BOOST_INCLUDE_DIR}
+    ${TBB_INCLUDE_DIRS}
+    ${OPENEXR_INCLUDE_DIRS})
+
+  list(APPEND OPENVDB_LIBRARIES ${OPENEXR_LIBRARIES} ${ZLIB_LIBRARIES})
+
+  if(WITH_OPENVDB_BLOSC)
+    list(APPEND OPENVDB_DEFINITIONS -DWITH_OPENVDB_BLOSC)
+    list(APPEND OPENVDB_LIBRARIES ${BLOSC_LIBRARIES} ${ZLIB_LIBRARIES})
+  endif()
+
+  list(APPEND OPENVDB_LIBRARIES ${BOOST_LIBRARIES} ${TBB_LIBRARIES})
+endif()
+
 #-----------------------------------------------------------------------------
 # Configure OpenGL.