diff options
Diffstat (limited to 'cmake/modules/FindOpenVDB.cmake')
-rw-r--r-- | cmake/modules/FindOpenVDB.cmake | 567 |
1 files changed, 567 insertions, 0 deletions
diff --git a/cmake/modules/FindOpenVDB.cmake b/cmake/modules/FindOpenVDB.cmake new file mode 100644 index 000000000..bddc346b9 --- /dev/null +++ b/cmake/modules/FindOpenVDB.cmake @@ -0,0 +1,567 @@ +# Copyright (c) DreamWorks Animation LLC +# +# All rights reserved. This software is distributed under the +# Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ ) +# +# Redistributions of source code must retain the above copyright +# and license notice and the following restrictions and disclaimer. +# +# * Neither the name of DreamWorks Animation nor the names of +# its contributors may be used to endorse or promote products derived +# from this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +# IN NO EVENT SHALL THE COPYRIGHT HOLDERS' AND CONTRIBUTORS' AGGREGATE +# LIABILITY FOR ALL CLAIMS REGARDLESS OF THEIR BASIS EXCEED US$250.00. +# +#[=======================================================================[.rst: + +FindOpenVDB +----------- + +Find OpenVDB include dirs, libraries and settings + +Use this module by invoking find_package with the form:: + + find_package(OpenVDB + [version] [EXACT] # Minimum or EXACT version + [REQUIRED] # Fail with error if OpenVDB is not found + [COMPONENTS <libs>...] # OpenVDB libraries by their canonical name + # e.g. "openvdb" for "libopenvdb" + ) + +IMPORTED Targets +^^^^^^^^^^^^^^^^ + +``OpenVDB::openvdb`` + The core openvdb library target. + +Result Variables +^^^^^^^^^^^^^^^^ + +This will define the following variables: + +``OpenVDB_FOUND`` + True if the system has the OpenVDB library. +``OpenVDB_VERSION`` + The version of the OpenVDB library which was found. +``OpenVDB_INCLUDE_DIRS`` + Include directories needed to use OpenVDB. +``OpenVDB_LIBRARIES`` + Libraries needed to link to OpenVDB. +``OpenVDB_LIBRARY_DIRS`` + OpenVDB library directories. +``OpenVDB_DEFINITIONS`` + Definitions to use when compiling code that uses OpenVDB. +``OpenVDB_{COMPONENT}_FOUND`` + True if the system has the named OpenVDB component. +``OpenVDB_USES_BLOSC`` + True if the OpenVDB Library has been built with blosc support +``OpenVDB_USES_LOG4CPLUS`` + True if the OpenVDB Library has been built with log4cplus support +``OpenVDB_USES_EXR`` + True if the OpenVDB Library has been built with openexr support +``OpenVDB_ABI`` + Set if this module was able to determine the ABI number the located + OpenVDB Library was built against. Unset otherwise. + +Cache Variables +^^^^^^^^^^^^^^^ + +The following cache variables may also be set: + +``OpenVDB_INCLUDE_DIR`` + The directory containing ``openvdb/version.h``. +``OpenVDB_{COMPONENT}_LIBRARY`` + Individual component libraries for OpenVDB + +Hints +^^^^^ + +Instead of explicitly setting the cache variables, the following variables +may be provided to tell this module where to look. + +``OPENVDB_ROOT`` + Preferred installation prefix. +``OPENVDB_INCLUDEDIR`` + Preferred include directory e.g. <prefix>/include +``OPENVDB_LIBRARYDIR`` + Preferred library directory e.g. <prefix>/lib +``SYSTEM_LIBRARY_PATHS`` + Paths appended to all include and lib searches. + +#]=======================================================================] + +cmake_minimum_required(VERSION 3.3) +# Monitoring <PackageName>_ROOT variables +if(POLICY CMP0074) + cmake_policy(SET CMP0074 NEW) +endif() + +if(OpenVDB_FIND_QUIETLY) + set (_quiet "QUIET") +else() + set (_quiet "") +endif() + +if(OpenVDB_FIND_REQUIRED) + set (_required "REQUIRED") +else() + set (_required "") +endif() + +# Include utility functions for version information +include(${CMAKE_CURRENT_LIST_DIR}/OpenVDBUtils.cmake) + +mark_as_advanced( + OpenVDB_INCLUDE_DIR + OpenVDB_LIBRARY +) + +set(_OPENVDB_COMPONENT_LIST + openvdb +) + +if(OpenVDB_FIND_COMPONENTS) + set(OPENVDB_COMPONENTS_PROVIDED TRUE) + set(_IGNORED_COMPONENTS "") + foreach(COMPONENT ${OpenVDB_FIND_COMPONENTS}) + if(NOT ${COMPONENT} IN_LIST _OPENVDB_COMPONENT_LIST) + list(APPEND _IGNORED_COMPONENTS ${COMPONENT}) + endif() + endforeach() + + if(_IGNORED_COMPONENTS) + message(STATUS "Ignoring unknown components of OpenVDB:") + foreach(COMPONENT ${_IGNORED_COMPONENTS}) + message(STATUS " ${COMPONENT}") + endforeach() + list(REMOVE_ITEM OpenVDB_FIND_COMPONENTS ${_IGNORED_COMPONENTS}) + endif() +else() + set(OPENVDB_COMPONENTS_PROVIDED FALSE) + set(OpenVDB_FIND_COMPONENTS ${_OPENVDB_COMPONENT_LIST}) +endif() + +# Append OPENVDB_ROOT or $ENV{OPENVDB_ROOT} if set (prioritize the direct cmake var) +set(_OPENVDB_ROOT_SEARCH_DIR "") + +# Additionally try and use pkconfig to find OpenVDB + +find_package(PkgConfig ${_quiet} ) +pkg_check_modules(PC_OpenVDB QUIET OpenVDB) + +# ------------------------------------------------------------------------ +# Search for OpenVDB include DIR +# ------------------------------------------------------------------------ + +set(_OPENVDB_INCLUDE_SEARCH_DIRS "") +list(APPEND _OPENVDB_INCLUDE_SEARCH_DIRS + ${OPENVDB_INCLUDEDIR} + ${_OPENVDB_ROOT_SEARCH_DIR} + ${PC_OpenVDB_INCLUDE_DIRS} + ${SYSTEM_LIBRARY_PATHS} +) + +# Look for a standard OpenVDB header file. +find_path(OpenVDB_INCLUDE_DIR openvdb/version.h + PATHS ${_OPENVDB_INCLUDE_SEARCH_DIRS} + PATH_SUFFIXES include +) + +OPENVDB_VERSION_FROM_HEADER("${OpenVDB_INCLUDE_DIR}/openvdb/version.h" + VERSION OpenVDB_VERSION + MAJOR OpenVDB_MAJOR_VERSION + MINOR OpenVDB_MINOR_VERSION + PATCH OpenVDB_PATCH_VERSION +) + +# ------------------------------------------------------------------------ +# Search for OPENVDB lib DIR +# ------------------------------------------------------------------------ + +set(_OPENVDB_LIBRARYDIR_SEARCH_DIRS "") + +# Append to _OPENVDB_LIBRARYDIR_SEARCH_DIRS in priority order + +list(APPEND _OPENVDB_LIBRARYDIR_SEARCH_DIRS + ${OPENVDB_LIBRARYDIR} + ${_OPENVDB_ROOT_SEARCH_DIR} + ${PC_OpenVDB_LIBRARY_DIRS} + ${SYSTEM_LIBRARY_PATHS} +) + +# Build suffix directories + +set(OPENVDB_PATH_SUFFIXES + lib64 + lib +) + +# Static library setup +if(UNIX AND OPENVDB_USE_STATIC_LIBS) + set(_OPENVDB_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES}) + set(CMAKE_FIND_LIBRARY_SUFFIXES ".a") +endif() + +set(OpenVDB_LIB_COMPONENTS "") +set(OpenVDB_DEBUG_SUFFIX "d" CACHE STRING "Suffix for the debug libraries") + +get_property(_is_multi GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG) + +foreach(COMPONENT ${OpenVDB_FIND_COMPONENTS}) + set(LIB_NAME ${COMPONENT}) + + find_library(OpenVDB_${COMPONENT}_LIBRARY_RELEASE ${LIB_NAME} lib${LIB_NAME} + PATHS ${_OPENVDB_LIBRARYDIR_SEARCH_DIRS} + PATH_SUFFIXES ${OPENVDB_PATH_SUFFIXES} + ) + + find_library(OpenVDB_${COMPONENT}_LIBRARY_DEBUG ${LIB_NAME}${OpenVDB_DEBUG_SUFFIX} lib${LIB_NAME}${OpenVDB_DEBUG_SUFFIX} + PATHS ${_OPENVDB_LIBRARYDIR_SEARCH_DIRS} + PATH_SUFFIXES ${OPENVDB_PATH_SUFFIXES} + ) + + if (_is_multi) + list(APPEND OpenVDB_LIB_COMPONENTS ${OpenVDB_${COMPONENT}_LIBRARY_RELEASE}) + if (MSVC OR OpenVDB_${COMPONENT}_LIBRARY_DEBUG) + list(APPEND OpenVDB_LIB_COMPONENTS ${OpenVDB_${COMPONENT}_LIBRARY_DEBUG}) + endif () + + list(FIND CMAKE_CONFIGURATION_TYPES "Debug" _has_debug) + + if(OpenVDB_${COMPONENT}_LIBRARY_RELEASE AND (NOT MSVC OR _has_debug LESS 0 OR OpenVDB_${COMPONENT}_LIBRARY_DEBUG)) + set(OpenVDB_${COMPONENT}_FOUND TRUE) + else() + set(OpenVDB_${COMPONENT}_FOUND FALSE) + endif() + + set(OpenVDB_${COMPONENT}_LIBRARY ${OpenVDB_${COMPONENT}_LIBRARY_RELEASE}) + else () + string(TOUPPER "${CMAKE_BUILD_TYPE}" _BUILD_TYPE) + + set(OpenVDB_${COMPONENT}_LIBRARY ${OpenVDB_${COMPONENT}_LIBRARY_${_BUILD_TYPE}}) + + if (NOT OpenVDB_${COMPONENT}_LIBRARY) + set(OpenVDB_${COMPONENT}_LIBRARY ${OpenVDB_${COMPONENT}_LIBRARY_RELEASE}) + endif () + + list(APPEND OpenVDB_LIB_COMPONENTS ${OpenVDB_${COMPONENT}_LIBRARY}) + + if(OpenVDB_${COMPONENT}_LIBRARY) + set(OpenVDB_${COMPONENT}_FOUND TRUE) + else() + set(OpenVDB_${COMPONENT}_FOUND FALSE) + endif() + endif () + +endforeach() + +if(UNIX AND OPENVDB_USE_STATIC_LIBS) + set(CMAKE_FIND_LIBRARY_SUFFIXES ${_OPENVDB_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}) + unset(_OPENVDB_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES) +endif() + +# ------------------------------------------------------------------------ +# Cache and set OPENVDB_FOUND +# ------------------------------------------------------------------------ + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(OpenVDB + FOUND_VAR OpenVDB_FOUND + REQUIRED_VARS + OpenVDB_INCLUDE_DIR + OpenVDB_LIB_COMPONENTS + VERSION_VAR OpenVDB_VERSION + HANDLE_COMPONENTS +) + +# ------------------------------------------------------------------------ +# Determine ABI number +# ------------------------------------------------------------------------ + +# Set the ABI number the library was built against. Uses vdb_print +find_program(OPENVDB_PRINT vdb_print PATHS ${OpenVDB_INCLUDE_DIR} ) + +OPENVDB_ABI_VERSION_FROM_PRINT( + "${OPENVDB_PRINT}" + ABI OpenVDB_ABI +) + +if(NOT OpenVDB_FIND_QUIETLY) + if(NOT OpenVDB_ABI) + message(WARNING "Unable to determine OpenVDB ABI version from OpenVDB " + "installation. The library major version \"${OpenVDB_MAJOR_VERSION}\" " + "will be inferred. If this is not correct, use " + "add_definitions(-DOPENVDB_ABI_VERSION_NUMBER=N)" + ) + else() + message(STATUS "OpenVDB ABI Version: ${OpenVDB_ABI}") + endif() +endif() + +# ------------------------------------------------------------------------ +# Handle OpenVDB dependencies +# ------------------------------------------------------------------------ + +# Add standard dependencies + +macro(just_fail msg) + set(OpenVDB_FOUND FALSE) + if(OpenVDB_FIND_REQUIRED) + message(FATAL_ERROR ${msg}) + elseif(NOT OpenVDB_FIND_QUIETLY) + message(WARNING ${msg}) + endif() + return() +endmacro() + +find_package(IlmBase QUIET COMPONENTS Half) +if(NOT IlmBase_FOUND) + pkg_check_modules(IlmBase QUIET IlmBase) +endif() +if (IlmBase_FOUND AND NOT TARGET IlmBase::Half) + message(STATUS "Falling back to IlmBase found by pkg-config...") + + find_library(IlmHalf_LIBRARY NAMES Half) + if(IlmHalf_LIBRARY-NOTFOUND OR NOT IlmBase_INCLUDE_DIRS) + just_fail("IlmBase::Half can not be found!") + endif() + + add_library(IlmBase::Half UNKNOWN IMPORTED) + set_target_properties(IlmBase::Half PROPERTIES + IMPORTED_LOCATION "${IlmHalf_LIBRARY}" + INTERFACE_INCLUDE_DIRECTORIES "${IlmBase_INCLUDE_DIRS}") +elseif(NOT IlmBase_FOUND) + just_fail("IlmBase::Half can not be found!") +endif() +find_package(TBB ${_quiet} ${_required} COMPONENTS tbb) +find_package(ZLIB ${_quiet} ${_required}) +find_package(Boost ${_quiet} ${_required} COMPONENTS iostreams system ) + +# Use GetPrerequisites to see which libraries this OpenVDB lib has linked to +# which we can query for optional deps. This basically runs ldd/otoll/objdump +# etc to track deps. We could use a vdb_config binary tools here to improve +# this process + +include(GetPrerequisites) + +set(_EXCLUDE_SYSTEM_PREREQUISITES 1) +set(_RECURSE_PREREQUISITES 0) +set(_OPENVDB_PREREQUISITE_LIST) + +if(NOT OPENVDB_USE_STATIC_LIBS) +get_prerequisites(${OpenVDB_openvdb_LIBRARY} + _OPENVDB_PREREQUISITE_LIST + ${_EXCLUDE_SYSTEM_PREREQUISITES} + ${_RECURSE_PREREQUISITES} + "" + "${SYSTEM_LIBRARY_PATHS}" +) +endif() + +unset(_EXCLUDE_SYSTEM_PREREQUISITES) +unset(_RECURSE_PREREQUISITES) + +# As the way we resolve optional libraries relies on library file names, use +# the configuration options from the main CMakeLists.txt to allow users +# to manually identify the requirements of OpenVDB builds if they know them. + +set(OpenVDB_USES_BLOSC ${USE_BLOSC}) +set(OpenVDB_USES_LOG4CPLUS ${USE_LOG4CPLUS}) +set(OpenVDB_USES_ILM ${USE_EXR}) +set(OpenVDB_USES_EXR ${USE_EXR}) + +# Search for optional dependencies + +foreach(PREREQUISITE ${_OPENVDB_PREREQUISITE_LIST}) + set(_HAS_DEP) + get_filename_component(PREREQUISITE ${PREREQUISITE} NAME) + + string(FIND ${PREREQUISITE} "blosc" _HAS_DEP) + if(NOT ${_HAS_DEP} EQUAL -1) + set(OpenVDB_USES_BLOSC ON) + endif() + + string(FIND ${PREREQUISITE} "log4cplus" _HAS_DEP) + if(NOT ${_HAS_DEP} EQUAL -1) + set(OpenVDB_USES_LOG4CPLUS ON) + endif() + + string(FIND ${PREREQUISITE} "IlmImf" _HAS_DEP) + if(NOT ${_HAS_DEP} EQUAL -1) + set(OpenVDB_USES_ILM ON) + endif() +endforeach() + +unset(_OPENVDB_PREREQUISITE_LIST) +unset(_HAS_DEP) + +if(OpenVDB_USES_BLOSC) + find_package(Blosc QUIET) + if(NOT Blosc_FOUND OR NOT TARGET Blosc::blosc) + message(STATUS "find_package could not find Blosc. Using fallback blosc search...") + find_path(Blosc_INCLUDE_DIR blosc.h) + find_library(Blosc_LIBRARY NAMES blosc) + if (Blosc_INCLUDE_DIR AND Blosc_LIBRARY) + set(Blosc_FOUND TRUE) + add_library(Blosc::blosc UNKNOWN IMPORTED) + set_target_properties(Blosc::blosc PROPERTIES + IMPORTED_LOCATION "${Blosc_LIBRARY}" + INTERFACE_INCLUDE_DIRECTORIES ${Blosc_INCLUDE_DIR}) + elseif() + just_fail("Blosc library can not be found!") + endif() + endif() +endif() + +if(OpenVDB_USES_LOG4CPLUS) + find_package(Log4cplus ${_quiet} ${_required}) +endif() + +if(OpenVDB_USES_ILM) + find_package(IlmBase ${_quiet} ${_required}) +endif() + +if(OpenVDB_USES_EXR) + find_package(OpenEXR ${_quiet} ${_required}) +endif() + +if(UNIX) + find_package(Threads ${_quiet} ${_required}) +endif() + +# Set deps. Note that the order here is important. If we're building against +# Houdini 17.5 we must include OpenEXR and IlmBase deps first to ensure the +# users chosen namespaced headers are correctly prioritized. Otherwise other +# include paths from shared installs (including houdini) may pull in the wrong +# headers + +set(_OPENVDB_VISIBLE_DEPENDENCIES + Boost::iostreams + Boost::system + IlmBase::Half +) + +set(_OPENVDB_DEFINITIONS) +if(OpenVDB_ABI) + list(APPEND _OPENVDB_DEFINITIONS "-DOPENVDB_ABI_VERSION_NUMBER=${OpenVDB_ABI}") +endif() + +if(OpenVDB_USES_EXR) + list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES + IlmBase::IlmThread + IlmBase::Iex + IlmBase::Imath + OpenEXR::IlmImf + ) + list(APPEND _OPENVDB_DEFINITIONS "-DOPENVDB_TOOLS_RAYTRACER_USE_EXR") +endif() + +if(OpenVDB_USES_LOG4CPLUS) + list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES Log4cplus::log4cplus) + list(APPEND _OPENVDB_DEFINITIONS "-DOPENVDB_USE_LOG4CPLUS") +endif() + +list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES + TBB::tbb +) +if(UNIX) + list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES + Threads::Threads + ) +endif() + +set(_OPENVDB_HIDDEN_DEPENDENCIES) + +if(OpenVDB_USES_BLOSC) + if(OPENVDB_USE_STATIC_LIBS) + list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES $<LINK_ONLY:Blosc::blosc>) + else() + list(APPEND _OPENVDB_HIDDEN_DEPENDENCIES Blosc::blosc) + endif() +endif() + +if(OPENVDB_USE_STATIC_LIBS) + list(APPEND _OPENVDB_VISIBLE_DEPENDENCIES $<LINK_ONLY:ZLIB::ZLIB>) +else() + list(APPEND _OPENVDB_HIDDEN_DEPENDENCIES ZLIB::ZLIB) +endif() + +# ------------------------------------------------------------------------ +# Configure imported target +# ------------------------------------------------------------------------ + +set(OpenVDB_LIBRARIES + ${OpenVDB_LIB_COMPONENTS} +) +set(OpenVDB_INCLUDE_DIRS ${OpenVDB_INCLUDE_DIR}) + +set(OpenVDB_DEFINITIONS) +list(APPEND OpenVDB_DEFINITIONS "${PC_OpenVDB_CFLAGS_OTHER}") +list(APPEND OpenVDB_DEFINITIONS "${_OPENVDB_DEFINITIONS}") +list(REMOVE_DUPLICATES OpenVDB_DEFINITIONS) + +set(OpenVDB_LIBRARY_DIRS "") +foreach(LIB ${OpenVDB_LIB_COMPONENTS}) + get_filename_component(_OPENVDB_LIBDIR ${LIB} DIRECTORY) + list(APPEND OpenVDB_LIBRARY_DIRS ${_OPENVDB_LIBDIR}) +endforeach() +list(REMOVE_DUPLICATES OpenVDB_LIBRARY_DIRS) + +foreach(COMPONENT ${OpenVDB_FIND_COMPONENTS}) + if(NOT TARGET OpenVDB::${COMPONENT}) + if (${COMPONENT} STREQUAL openvdb) + include (${CMAKE_CURRENT_LIST_DIR}/CheckAtomic.cmake) + set(_LINK_LIBS ${_OPENVDB_VISIBLE_DEPENDENCIES} ${CMAKE_REQUIRED_LIBRARIES}) + else () + set(_LINK_LIBS _OPENVDB_VISIBLE_DEPENDENCIES) + endif () + + add_library(OpenVDB::${COMPONENT} UNKNOWN IMPORTED) + set_target_properties(OpenVDB::${COMPONENT} PROPERTIES + INTERFACE_COMPILE_OPTIONS "${OpenVDB_DEFINITIONS}" + INTERFACE_INCLUDE_DIRECTORIES "${OpenVDB_INCLUDE_DIR}" + IMPORTED_LINK_DEPENDENT_LIBRARIES "${_OPENVDB_HIDDEN_DEPENDENCIES}" # non visible deps + INTERFACE_LINK_LIBRARIES "${_LINK_LIBS}" # visible deps (headers) + INTERFACE_COMPILE_FEATURES cxx_std_11 + IMPORTED_LOCATION "${OpenVDB_${COMPONENT}_LIBRARY}" + ) + + if (_is_multi) + set_target_properties(OpenVDB::${COMPONENT} PROPERTIES + IMPORTED_LOCATION_RELEASE "${OpenVDB_${COMPONENT}_LIBRARY_RELEASE}" + ) + + if (MSVC OR OpenVDB_${COMPONENT}_LIBRARY_DEBUG) + set_target_properties(OpenVDB::${COMPONENT} PROPERTIES + IMPORTED_LOCATION_DEBUG "${OpenVDB_${COMPONENT}_LIBRARY_DEBUG}" + ) + endif () + endif () + + if (OPENVDB_USE_STATIC_LIBS) + set_target_properties(OpenVDB::${COMPONENT} PROPERTIES + INTERFACE_COMPILE_DEFINITIONS "OPENVDB_STATICLIB;OPENVDB_OPENEXR_STATICLIB" + ) + endif() + endif() +endforeach() + +if(OpenVDB_FOUND AND NOT OpenVDB_FIND_QUIETLY) + message(STATUS "OpenVDB libraries: ${OpenVDB_LIBRARIES}") +endif() + +unset(_OPENVDB_DEFINITIONS) +unset(_OPENVDB_VISIBLE_DEPENDENCIES) +unset(_OPENVDB_HIDDEN_DEPENDENCIES) |