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CMakeLists.txt
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CMakeLists.txt
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# ----------------------------------------------------------------------------
# Root CMake file for OpenCV
#
# From the off-tree build directory, invoke:
# $ cmake <PATH_TO_OPENCV_ROOT>
#
# ----------------------------------------------------------------------------
# Disable in-source builds to prevent source tree corruption.
if(" ${CMAKE_SOURCE_DIR}" STREQUAL " ${CMAKE_BINARY_DIR}")
message(FATAL_ERROR "
FATAL: In-source builds are not allowed.
You should create a separate directory for build files.
")
endif()
include(cmake/OpenCVMinDepVersions.cmake)
if(CMAKE_SYSTEM_NAME MATCHES WindowsPhone OR CMAKE_SYSTEM_NAME MATCHES WindowsStore)
cmake_minimum_required(VERSION 3.1 FATAL_ERROR)
#Required to resolve linker error issues due to incompatibility with CMake v3.0+ policies.
#CMake fails to find _fseeko() which leads to subsequent linker error.
#See details here: http://www.cmake.org/Wiki/CMake/Policies
cmake_policy(VERSION 2.8)
else()
cmake_minimum_required(VERSION "${MIN_VER_CMAKE}" FATAL_ERROR)
endif()
#
# Configure CMake policies
#
if(POLICY CMP0026)
cmake_policy(SET CMP0026 NEW)
endif()
if(POLICY CMP0042)
cmake_policy(SET CMP0042 NEW) # CMake 3.0+ (2.8.12): MacOS "@rpath" in target's install name
endif()
if(POLICY CMP0046)
cmake_policy(SET CMP0046 NEW) # warn about non-existed dependencies
endif()
if(POLICY CMP0051)
cmake_policy(SET CMP0051 NEW)
endif()
if(POLICY CMP0054) # CMake 3.1: Only interpret if() arguments as variables or keywords when unquoted.
cmake_policy(SET CMP0054 NEW)
endif()
if(POLICY CMP0056)
cmake_policy(SET CMP0056 NEW) # try_compile(): link flags
endif()
if(POLICY CMP0066)
cmake_policy(SET CMP0066 NEW) # CMake 3.7: try_compile(): use per-config flags, like CMAKE_CXX_FLAGS_RELEASE
endif()
if(POLICY CMP0067)
cmake_policy(SET CMP0067 NEW) # CMake 3.8: try_compile(): honor language standard variables (like C++11)
endif()
if(POLICY CMP0068)
cmake_policy(SET CMP0068 NEW) # CMake 3.9+: `RPATH` settings on macOS do not affect `install_name`.
endif()
if(POLICY CMP0071)
cmake_policy(SET CMP0071 NEW) # CMake 3.10+: Let `AUTOMOC` and `AUTOUIC` process `GENERATED` files.
endif()
if(POLICY CMP0075)
cmake_policy(SET CMP0075 NEW) # CMake 3.12+: Include file check macros honor `CMAKE_REQUIRED_LIBRARIES`
endif()
if(POLICY CMP0077)
cmake_policy(SET CMP0077 NEW) # CMake 3.13+: option() honors normal variables.
endif()
if(POLICY CMP0091)
cmake_policy(SET CMP0091 NEW) # CMake 3.15+: leave MSVC runtime selection out of default CMAKE_<LANG>_FLAGS_<CONFIG> flags
endif()
if(POLICY CMP0146)
cmake_policy(SET CMP0146 OLD) # CMake 3.27+: use CMake FindCUDA if available.
endif()
if(POLICY CMP0148)
cmake_policy(SET CMP0148 OLD) # CMake 3.27+: use CMake FindPythonInterp and FindPythonLib if available.
endif()
#
# Configure OpenCV CMake hooks
#
include(cmake/OpenCVUtils.cmake)
ocv_cmake_reset_hooks()
ocv_check_environment_variables(OPENCV_CMAKE_HOOKS_DIR)
if(DEFINED OPENCV_CMAKE_HOOKS_DIR)
foreach(__dir ${OPENCV_CMAKE_HOOKS_DIR})
get_filename_component(__dir "${__dir}" ABSOLUTE)
ocv_cmake_hook_register_dir(${__dir})
endforeach()
endif()
ocv_cmake_hook(CMAKE_INIT)
# must go before the project()/enable_language() commands
ocv_update(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE)
if(NOT DEFINED CMAKE_BUILD_TYPE
AND NOT OPENCV_SKIP_DEFAULT_BUILD_TYPE
)
message(STATUS "'Release' build type is used by default. Use CMAKE_BUILD_TYPE to specify build type (Release or Debug)")
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build")
endif()
if(DEFINED CMAKE_BUILD_TYPE)
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "${CMAKE_CONFIGURATION_TYPES}")
endif()
option(ENABLE_PIC "Generate position independent code (necessary for shared libraries)" TRUE)
set(CMAKE_POSITION_INDEPENDENT_CODE ${ENABLE_PIC})
ocv_cmake_hook(PRE_CMAKE_BOOTSTRAP)
# Bootstrap CMake system: setup CMAKE_SYSTEM_NAME and other vars
if(OPENCV_WORKAROUND_CMAKE_20989)
set(CMAKE_SYSTEM_PROCESSOR_BACKUP ${CMAKE_SYSTEM_PROCESSOR})
endif()
enable_language(CXX C)
if(OPENCV_WORKAROUND_CMAKE_20989)
set(CMAKE_SYSTEM_PROCESSOR ${CMAKE_SYSTEM_PROCESSOR_BACKUP})
endif()
ocv_cmake_hook(POST_CMAKE_BOOTSTRAP)
if(NOT OPENCV_SKIP_CMAKE_SYSTEM_FILE)
include("cmake/platforms/OpenCV-${CMAKE_SYSTEM_NAME}.cmake" OPTIONAL RESULT_VARIABLE "OPENCV_CMAKE_SYSTEM_FILE")
if(NOT OPENCV_CMAKE_SYSTEM_FILE)
message(STATUS "OpenCV: system-specific configuration file is not found: '${CMAKE_SYSTEM_NAME}'")
endif()
endif()
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT) # https://cmake.org/cmake/help/latest/variable/CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT.html
if(NOT CMAKE_TOOLCHAIN_FILE)
if(WIN32)
set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "Installation Directory" FORCE)
else()
set(CMAKE_INSTALL_PREFIX "/usr/local" CACHE PATH "Installation Directory" FORCE)
endif()
else()
# any cross-compiling
set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "Installation Directory" FORCE)
endif()
endif()
enable_testing()
project(OpenCV CXX C)
if(MSVC)
set(CMAKE_USE_RELATIVE_PATHS ON CACHE INTERNAL "" FORCE)
endif()
ocv_cmake_eval(DEBUG_PRE ONCE)
ocv_clear_vars(OpenCVModules_TARGETS)
include(cmake/OpenCVDownload.cmake)
set(BUILD_LIST "" CACHE STRING "Build only listed modules (comma-separated, e.g. 'videoio,dnn,ts')")
# ----------------------------------------------------------------------------
# Break in case of popular CMake configuration mistakes
# ----------------------------------------------------------------------------
if(NOT CMAKE_SIZEOF_VOID_P GREATER 0)
message(FATAL_ERROR "CMake fails to determine the bitness of the target platform.
Please check your CMake and compiler installation. If you are cross-compiling then ensure that your CMake toolchain file correctly sets the compiler details.")
endif()
# ----------------------------------------------------------------------------
# Detect compiler and target platform architecture
# ----------------------------------------------------------------------------
include(cmake/OpenCVDetectCXXCompiler.cmake)
ocv_cmake_hook(POST_DETECT_COMPILER)
# Add these standard paths to the search paths for FIND_LIBRARY
# to find libraries from these locations first
if(UNIX AND NOT ANDROID)
if(X86_64 OR CMAKE_SIZEOF_VOID_P EQUAL 8)
if(EXISTS /lib64)
list(APPEND CMAKE_LIBRARY_PATH /lib64)
else()
list(APPEND CMAKE_LIBRARY_PATH /lib)
endif()
if(EXISTS /usr/lib64)
list(APPEND CMAKE_LIBRARY_PATH /usr/lib64)
else()
list(APPEND CMAKE_LIBRARY_PATH /usr/lib)
endif()
elseif(X86 OR CMAKE_SIZEOF_VOID_P EQUAL 4)
if(EXISTS /lib32)
list(APPEND CMAKE_LIBRARY_PATH /lib32)
else()
list(APPEND CMAKE_LIBRARY_PATH /lib)
endif()
if(EXISTS /usr/lib32)
list(APPEND CMAKE_LIBRARY_PATH /usr/lib32)
else()
list(APPEND CMAKE_LIBRARY_PATH /usr/lib)
endif()
endif()
endif()
# Add these standard paths to the search paths for FIND_PATH
# to find include files from these locations first
if(MINGW)
if(EXISTS /mingw)
list(APPEND CMAKE_INCLUDE_PATH /mingw)
endif()
if(EXISTS /mingw32)
list(APPEND CMAKE_INCLUDE_PATH /mingw32)
endif()
if(EXISTS /mingw64)
list(APPEND CMAKE_INCLUDE_PATH /mingw64)
endif()
endif()
# ----------------------------------------------------------------------------
# OpenCV cmake options
# ----------------------------------------------------------------------------
OCV_OPTION(OPENCV_ENABLE_NONFREE "Enable non-free algorithms" OFF)
# 3rd party libs
OCV_OPTION(OPENCV_FORCE_3RDPARTY_BUILD "Force using 3rdparty code from source" OFF)
OCV_OPTION(BUILD_ZLIB "Build zlib from source" (WIN32 OR APPLE OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_TIFF "Build libtiff from source" (WIN32 OR ANDROID OR APPLE OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_OPENJPEG "Build OpenJPEG from source" (WIN32 OR ANDROID OR APPLE OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_JASPER "Build libjasper from source" (WIN32 OR ANDROID OR APPLE OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_JPEG "Build libjpeg from source" (WIN32 OR ANDROID OR APPLE OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_PNG "Build libpng from source" (WIN32 OR ANDROID OR APPLE OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_OPENEXR "Build openexr from source" (OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_WEBP "Build WebP from source" (((WIN32 OR ANDROID OR APPLE) AND NOT WINRT) OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_TBB "Download and build TBB from source" (ANDROID OR OPENCV_FORCE_3RDPARTY_BUILD) )
OCV_OPTION(BUILD_IPP_IW "Build IPP IW from source" (NOT MINGW OR OPENCV_FORCE_3RDPARTY_BUILD) IF (X86_64 OR X86) AND NOT WINRT )
OCV_OPTION(BUILD_ITT "Build Intel ITT from source"
(NOT MINGW OR OPENCV_FORCE_3RDPARTY_BUILD)
IF (X86_64 OR X86 OR ARM OR AARCH64 OR PPC64 OR PPC64LE) AND NOT WINRT AND NOT APPLE_FRAMEWORK
)
# Optional 3rd party components
# ===================================================
OCV_OPTION(WITH_1394 "Include IEEE1394 support" OFF
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_DC1394_2)
OCV_OPTION(WITH_AVFOUNDATION "Use AVFoundation for Video I/O (iOS/visionOS/Mac)" ON
VISIBLE_IF APPLE
VERIFY HAVE_AVFOUNDATION)
OCV_OPTION(WITH_AVIF "Enable AVIF support" OFF
VERIFY HAVE_AVIF)
OCV_OPTION(WITH_CAP_IOS "Enable iOS video capture" ON
VISIBLE_IF IOS
VERIFY HAVE_CAP_IOS)
OCV_OPTION(WITH_CAROTENE "Use NVidia carotene acceleration library for ARM platform" (NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF (ARM OR AARCH64) AND NOT IOS AND NOT XROS)
OCV_OPTION(WITH_KLEIDICV "Use KleidiCV library for ARM platforms" (ANDROID AND AARCH64 AND NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF (AARCH64 AND (ANDROID OR UNIX AND NOT IOS AND NOT XROS)))
OCV_OPTION(WITH_NDSRVP "Use Andes RVP extension" (NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF RISCV)
OCV_OPTION(WITH_HAL_RVV "Use HAL RVV optimizations" (NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF RISCV)
OCV_OPTION(WITH_CPUFEATURES "Use cpufeatures Android library" ON
VISIBLE_IF ANDROID
VERIFY HAVE_CPUFEATURES)
OCV_OPTION(WITH_VTK "Include VTK library support (and build opencv_viz module eiher)" ON
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT AND NOT CMAKE_CROSSCOMPILING
VERIFY HAVE_VTK)
OCV_OPTION(WITH_CUDA "Include NVidia Cuda Runtime support" OFF
VISIBLE_IF NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_CUDA)
OCV_OPTION(WITH_CUFFT "Include NVidia Cuda Fast Fourier Transform (FFT) library support" WITH_CUDA
VISIBLE_IF WITH_CUDA
VERIFY HAVE_CUFFT)
OCV_OPTION(WITH_CUBLAS "Include NVidia Cuda Basic Linear Algebra Subprograms (BLAS) library support" WITH_CUDA
VISIBLE_IF WITH_CUDA
VERIFY HAVE_CUBLAS)
OCV_OPTION(WITH_CUDNN "Include NVIDIA CUDA Deep Neural Network (cuDNN) library support" WITH_CUDA
VISIBLE_IF WITH_CUDA
VERIFY HAVE_CUDNN)
OCV_OPTION(WITH_NVCUVID "Include NVidia Video Decoding library support" ON
VISIBLE_IF WITH_CUDA
VERIFY HAVE_NVCUVID)
OCV_OPTION(WITH_NVCUVENC "Include NVidia Video Encoding library support" ON
VISIBLE_IF WITH_CUDA
VERIFY HAVE_NVCUVENC)
OCV_OPTION(WITH_EIGEN "Include Eigen2/Eigen3 support" (NOT CV_DISABLE_OPTIMIZATION AND NOT CMAKE_CROSSCOMPILING)
VISIBLE_IF NOT WINRT
VERIFY HAVE_EIGEN)
OCV_OPTION(WITH_FFMPEG "Include FFMPEG support" (NOT ANDROID)
VISIBLE_IF NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_FFMPEG)
OCV_OPTION(WITH_GSTREAMER "Include Gstreamer support" ON
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_GSTREAMER AND GSTREAMER_VERSION VERSION_GREATER "0.99")
OCV_OPTION(WITH_GTK "Include GTK support" ON
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
VERIFY HAVE_GTK)
OCV_OPTION(WITH_GTK_2_X "Use GTK version 2" OFF
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
VERIFY HAVE_GTK AND NOT HAVE_GTK3)
OCV_OPTION(WITH_FRAMEBUFFER "Include framebuffer support" OFF
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID)
OCV_OPTION(WITH_FRAMEBUFFER_XVFB "Include virtual framebuffer support" OFF
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID)
OCV_OPTION(WITH_WAYLAND "Include Wayland support" OFF
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
VERIFY HAVE_WAYLAND)
OCV_OPTION(WITH_IPP "Include Intel IPP support" (NOT MINGW AND NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF (X86_64 OR X86) AND NOT WINRT AND NOT IOS AND NOT XROS
VERIFY HAVE_IPP)
OCV_OPTION(WITH_HALIDE "Include Halide support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_HALIDE)
OCV_OPTION(WITH_VULKAN "Include Vulkan support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_VULKAN)
# replacement for deprecated options: WITH_INF_ENGINE, WITH_NGRAPH
OCV_OPTION(WITH_OPENVINO "Include Intel OpenVINO toolkit support" (WITH_INF_ENGINE)
VISIBLE_IF TRUE
VERIFY TARGET ocv.3rdparty.openvino)
OCV_OPTION(WITH_WEBNN "Include WebNN support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_WEBNN)
OCV_OPTION(WITH_JASPER "Include JPEG2K support (Jasper)" ON
VISIBLE_IF NOT IOS AND NOT XROS
VERIFY HAVE_JASPER)
OCV_OPTION(WITH_OPENJPEG "Include JPEG2K support (OpenJPEG)" ON
VISIBLE_IF NOT IOS AND NOT XROS
VERIFY HAVE_OPENJPEG)
OCV_OPTION(WITH_JPEG "Include JPEG support" ON
VISIBLE_IF TRUE
VERIFY HAVE_JPEG)
OCV_OPTION(WITH_WEBP "Include WebP support" ON
VISIBLE_IF NOT WINRT
VERIFY HAVE_WEBP)
OCV_OPTION(WITH_OPENEXR "Include ILM support via OpenEXR" ((WIN32 OR ANDROID OR APPLE) OR BUILD_OPENEXR) OR NOT CMAKE_CROSSCOMPILING
VISIBLE_IF NOT APPLE_FRAMEWORK AND NOT WINRT
VERIFY HAVE_OPENEXR)
OCV_OPTION(WITH_OPENGL "Include OpenGL support" OFF
VISIBLE_IF NOT ANDROID AND NOT WINRT
VERIFY HAVE_OPENGL)
OCV_OPTION(WITH_OPENVX "Include OpenVX support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_OPENVX)
OCV_OPTION(WITH_OPENNI "Include OpenNI support" OFF
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_OPENNI)
OCV_OPTION(WITH_OPENNI2 "Include OpenNI2 support" OFF
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_OPENNI2)
OCV_OPTION(WITH_PNG "Include PNG support" ON
VISIBLE_IF TRUE
VERIFY HAVE_PNG)
OCV_OPTION(WITH_SPNG "Include SPNG support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_SPNG)
OCV_OPTION(WITH_GDCM "Include DICOM support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_GDCM)
OCV_OPTION(WITH_PVAPI "Include Prosilica GigE support" OFF
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_PVAPI)
OCV_OPTION(WITH_ARAVIS "Include Aravis GigE support" OFF
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT AND NOT WIN32
VERIFY HAVE_ARAVIS_API)
OCV_OPTION(WITH_QT "Build with Qt Backend support" OFF
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_QT)
OCV_OPTION(WITH_WIN32UI "Build with Win32 UI Backend support" ON
VISIBLE_IF WIN32 AND NOT WINRT
VERIFY HAVE_WIN32UI)
OCV_OPTION(WITH_TBB "Include Intel TBB support" OFF
VISIBLE_IF NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_TBB)
OCV_OPTION(WITH_HPX "Include Ste||ar Group HPX support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_HPX)
OCV_OPTION(WITH_OPENMP "Include OpenMP support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_OPENMP)
OCV_OPTION(WITH_PTHREADS_PF "Use pthreads-based parallel_for" ON
VISIBLE_IF NOT WIN32 OR MINGW
VERIFY HAVE_PTHREADS_PF)
OCV_OPTION(WITH_TIFF "Include TIFF support" ON
VISIBLE_IF NOT IOS AND NOT XROS
VERIFY HAVE_TIFF)
OCV_OPTION(WITH_V4L "Include Video 4 Linux support" ON
VISIBLE_IF UNIX AND NOT ANDROID AND NOT APPLE
VERIFY HAVE_CAMV4L OR HAVE_CAMV4L2 OR HAVE_VIDEOIO)
OCV_OPTION(WITH_DSHOW "Build VideoIO with DirectShow support" ON
VISIBLE_IF WIN32 AND NOT ARM AND NOT WINRT
VERIFY HAVE_DSHOW)
OCV_OPTION(WITH_MSMF "Build VideoIO with Media Foundation support" NOT MINGW
VISIBLE_IF WIN32
VERIFY HAVE_MSMF)
OCV_OPTION(WITH_MSMF_DXVA "Enable hardware acceleration in Media Foundation backend" WITH_MSMF
VISIBLE_IF WIN32
VERIFY HAVE_MSMF_DXVA)
OCV_OPTION(WITH_XIMEA "Include XIMEA cameras support" OFF
VISIBLE_IF NOT ANDROID AND NOT WINRT
VERIFY HAVE_XIMEA)
OCV_OPTION(WITH_UEYE "Include UEYE camera support" OFF
VISIBLE_IF NOT ANDROID AND NOT APPLE AND NOT WINRT
VERIFY HAVE_UEYE)
OCV_OPTION(WITH_XINE "Include Xine support (GPL)" OFF
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
VERIFY HAVE_XINE)
OCV_OPTION(WITH_CLP "Include Clp support (EPL)" OFF
VISIBLE_IF TRUE
VERIFY HAVE_CLP)
OCV_OPTION(WITH_OPENCL "Include OpenCL Runtime support" (NOT ANDROID AND NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_OPENCL)
OCV_OPTION(WITH_OPENCL_SVM "Include OpenCL Shared Virtual Memory support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_OPENCL_SVM) # experimental
OCV_OPTION(WITH_OPENCLAMDFFT "Include AMD OpenCL FFT library support" ON
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_CLAMDFFT)
OCV_OPTION(WITH_OPENCLAMDBLAS "Include AMD OpenCL BLAS library support" ON
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_CLAMDBLAS)
OCV_OPTION(WITH_DIRECTX "Include DirectX support" ON
VISIBLE_IF WIN32 AND NOT WINRT
VERIFY HAVE_DIRECTX)
OCV_OPTION(WITH_DIRECTML "Include DirectML support" ON
VISIBLE_IF WIN32 AND NOT WINRT
VERIFY HAVE_DIRECTML)
OCV_OPTION(WITH_OPENCL_D3D11_NV "Include NVIDIA OpenCL D3D11 support" WITH_DIRECTX
VISIBLE_IF WIN32 AND NOT WINRT
VERIFY HAVE_OPENCL_D3D11_NV)
OCV_OPTION(WITH_LIBREALSENSE "Include Intel librealsense support" OFF
VISIBLE_IF NOT WITH_INTELPERC
VERIFY HAVE_LIBREALSENSE)
OCV_OPTION(WITH_VA "Include VA support" (X86_64 OR X86)
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
VERIFY HAVE_VA)
OCV_OPTION(WITH_VA_INTEL "Include Intel VA-API/OpenCL support" (X86_64 OR X86)
VISIBLE_IF UNIX AND NOT APPLE AND NOT ANDROID
VERIFY HAVE_VA_INTEL)
OCV_OPTION(WITH_MFX "Include Intel Media SDK support" OFF
VISIBLE_IF (UNIX AND NOT ANDROID) OR (WIN32 AND NOT WINRT AND NOT MINGW)
VERIFY HAVE_MFX)
OCV_OPTION(WITH_GDAL "Include GDAL Support" OFF
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS AND NOT WINRT
VERIFY HAVE_GDAL)
OCV_OPTION(WITH_GPHOTO2 "Include gPhoto2 library support" OFF
VISIBLE_IF UNIX AND NOT ANDROID AND NOT IOS AND NOT XROS
VERIFY HAVE_GPHOTO2)
OCV_OPTION(WITH_LAPACK "Include Lapack library support" (NOT CV_DISABLE_OPTIMIZATION)
VISIBLE_IF NOT ANDROID AND NOT IOS AND NOT XROS
VERIFY HAVE_LAPACK)
OCV_OPTION(WITH_ITT "Include Intel ITT support" ON
VISIBLE_IF NOT APPLE_FRAMEWORK
VERIFY HAVE_ITT)
OCV_OPTION(WITH_PROTOBUF "Enable libprotobuf" ON
VISIBLE_IF TRUE
VERIFY HAVE_PROTOBUF)
OCV_OPTION(WITH_IMGCODEC_HDR "Include HDR support" ON
VISIBLE_IF TRUE
VERIFY HAVE_IMGCODEC_HDR)
OCV_OPTION(WITH_IMGCODEC_SUNRASTER "Include SUNRASTER support" ON
VISIBLE_IF TRUE
VERIFY HAVE_IMGCODEC_SUNRASTER)
OCV_OPTION(WITH_IMGCODEC_PXM "Include PNM (PBM,PGM,PPM) and PAM formats support" ON
VISIBLE_IF TRUE
VERIFY HAVE_IMGCODEC_PXM)
OCV_OPTION(WITH_IMGCODEC_PFM "Include PFM formats support" ON
VISIBLE_IF TRUE
VERIFY HAVE_IMGCODEC_PFM)
OCV_OPTION(WITH_QUIRC "Include library QR-code decoding" OFF
VISIBLE_IF TRUE
VERIFY HAVE_QUIRC)
OCV_OPTION(WITH_ANDROID_MEDIANDK "Use Android Media NDK for Video I/O (Android)" (ANDROID_NATIVE_API_LEVEL GREATER 20)
VISIBLE_IF ANDROID
VERIFY HAVE_ANDROID_MEDIANDK)
OCV_OPTION(WITH_ANDROID_NATIVE_CAMERA "Use Android NDK for Camera I/O (Android)" (ANDROID_NATIVE_API_LEVEL GREATER 23)
VISIBLE_IF ANDROID
VERIFY HAVE_ANDROID_NATIVE_CAMERA)
OCV_OPTION(WITH_ONNX "Include Microsoft ONNX Runtime support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_ONNX)
OCV_OPTION(WITH_TIMVX "Include Tim-VX support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_TIMVX)
# Attention when OBSENSOR_USE_ORBBEC_SDK set to off:
# Astra2 cameras currently only support Windows and Linux kernel versions no higher than 4.15, and higher versions of Linux kernel may have exceptions.
OCV_OPTION(OBSENSOR_USE_ORBBEC_SDK "Use Orbbec SDK as backend to support more camera models and platforms (force to ON on MacOS)" OFF)
OCV_OPTION(WITH_OBSENSOR "Include obsensor support (Orbbec 3D Cameras)" ON
VISIBLE_IF (WIN32 AND NOT ARM AND NOT WINRT AND NOT MINGW) OR ( UNIX AND NOT APPLE AND NOT ANDROID) OR (APPLE AND AARCH64 AND NOT IOS)
VERIFY HAVE_OBSENSOR)
OCV_OPTION(WITH_CANN "Include CANN support" OFF
VISIBLE_IF TRUE
VERIFY HAVE_CANN)
OCV_OPTION(WITH_FLATBUFFERS "Include Flatbuffers support (required by DNN/TFLite importer)" ON
VISIBLE_IF TRUE
VERIFY HAVE_FLATBUFFERS)
OCV_OPTION(WITH_ZLIB_NG "Use zlib-ng instead of zlib" OFF
VISIBLE_IF TRUE
VERIFY HAVE_ZLIB_NG)
# OpenCV build components
# ===================================================
OCV_OPTION(BUILD_SHARED_LIBS "Build shared libraries (.dll/.so) instead of static ones (.lib/.a)" NOT (ANDROID OR APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_opencv_apps "Build utility applications (used for example to train classifiers)" (NOT ANDROID AND NOT WINRT) IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_opencv_js "Build JavaScript bindings by Emscripten" OFF )
OCV_OPTION(BUILD_ANDROID_PROJECTS "Build Android projects providing .apk files" ON IF ANDROID )
OCV_OPTION(BUILD_ANDROID_EXAMPLES "Build examples for Android platform" ON IF ANDROID )
OCV_OPTION(BUILD_DOCS "Create build rules for OpenCV Documentation" OFF IF (NOT WINRT AND NOT APPLE_FRAMEWORK))
OCV_OPTION(BUILD_EXAMPLES "Build all examples" OFF )
OCV_OPTION(BUILD_PACKAGE "Enables 'make package_source' command" ON IF NOT WINRT)
OCV_OPTION(BUILD_PERF_TESTS "Build performance tests" NOT INSTALL_CREATE_DISTRIB IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_TESTS "Build accuracy & regression tests" NOT INSTALL_CREATE_DISTRIB IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_WITH_DEBUG_INFO "Include debug info into release binaries ('OFF' means default settings)" OFF )
OCV_OPTION(BUILD_WITH_STATIC_CRT "Enables use of statically linked CRT for statically linked OpenCV" ON IF MSVC )
OCV_OPTION(BUILD_WITH_DYNAMIC_IPP "Enables dynamic linking of IPP (only for standalone IPP)" OFF )
OCV_OPTION(BUILD_FAT_JAVA_LIB "Create Java wrapper exporting all functions of OpenCV library (requires static build of OpenCV modules)" ANDROID IF NOT BUILD_SHARED_LIBS)
OCV_OPTION(BUILD_ANDROID_SERVICE "Build OpenCV Manager for Google Play" OFF IF ANDROID )
OCV_OPTION(BUILD_CUDA_STUBS "Build CUDA modules stubs when no CUDA SDK" OFF IF (NOT APPLE_FRAMEWORK) )
OCV_OPTION(BUILD_JAVA "Enable Java support" (ANDROID OR NOT CMAKE_CROSSCOMPILING) IF (ANDROID OR (NOT APPLE_FRAMEWORK AND NOT WINRT)) )
OCV_OPTION(BUILD_OBJC "Enable Objective-C support" ON IF APPLE_FRAMEWORK )
OCV_OPTION(BUILD_KOTLIN_EXTENSIONS "Build Kotlin extensions (Android)" ON IF ANDROID )
# OpenCV installation options
# ===================================================
OCV_OPTION(INSTALL_CREATE_DISTRIB "Change install rules to build the distribution package" OFF )
OCV_OPTION(INSTALL_BIN_EXAMPLES "Install prebuilt examples" WIN32 IF BUILD_EXAMPLES)
OCV_OPTION(INSTALL_C_EXAMPLES "Install C examples" OFF )
OCV_OPTION(INSTALL_PYTHON_EXAMPLES "Install Python examples" OFF )
OCV_OPTION(INSTALL_ANDROID_EXAMPLES "Install Android examples" OFF IF ANDROID )
OCV_OPTION(INSTALL_TO_MANGLED_PATHS "Enables mangled install paths, that help with side by side installs." OFF IF (UNIX AND NOT ANDROID AND NOT APPLE_FRAMEWORK AND BUILD_SHARED_LIBS) )
OCV_OPTION(INSTALL_TESTS "Install accuracy and performance test binaries and test data" OFF)
# OpenCV build options
# ===================================================
OCV_OPTION(ENABLE_CCACHE "Use ccache" (UNIX AND (CMAKE_GENERATOR MATCHES "Makefile" OR CMAKE_GENERATOR MATCHES "Ninja" OR CMAKE_GENERATOR MATCHES "Xcode")) )
OCV_OPTION(ENABLE_PRECOMPILED_HEADERS "Use precompiled headers" MSVC IF (MSVC OR (NOT IOS AND NOT XROS AND NOT CMAKE_CROSSCOMPILING) ) )
OCV_OPTION(ENABLE_DELAYLOAD "Enable delayed loading of OpenCV DLLs" OFF VISIBLE_IF MSVC AND BUILD_SHARED_LIBS)
OCV_OPTION(ENABLE_SOLUTION_FOLDERS "Solution folder in Visual Studio or in other IDEs" (MSVC_IDE OR CMAKE_GENERATOR MATCHES Xcode) )
OCV_OPTION(ENABLE_PROFILING "Enable profiling in the GCC compiler (Add flags: -g -pg)" OFF IF CV_GCC )
OCV_OPTION(ENABLE_COVERAGE "Enable coverage collection with GCov" OFF IF CV_GCC )
OCV_OPTION(OPENCV_ENABLE_MEMORY_SANITIZER "Better support for memory/address sanitizers" OFF)
OCV_OPTION(ENABLE_OMIT_FRAME_POINTER "Enable -fomit-frame-pointer for GCC" ON IF CV_GCC )
OCV_OPTION(ENABLE_POWERPC "Enable PowerPC for GCC" ON IF (CV_GCC AND CMAKE_SYSTEM_PROCESSOR MATCHES powerpc.*) )
OCV_OPTION(ENABLE_FAST_MATH "Enable compiler options for fast math optimizations on FP computations (not recommended)" OFF)
if(NOT IOS AND (NOT ANDROID OR OPENCV_ANDROID_USE_LEGACY_FLAGS) AND CMAKE_CROSSCOMPILING) # Use CPU_BASELINE instead
OCV_OPTION(ENABLE_NEON "Enable NEON instructions" (NEON OR ANDROID_ARM_NEON OR AARCH64) IF (CV_GCC OR CV_CLANG) AND (ARM OR AARCH64 OR IOS OR XROS) )
OCV_OPTION(ENABLE_VFPV3 "Enable VFPv3-D32 instructions" OFF IF (CV_GCC OR CV_CLANG) AND (ARM OR AARCH64 OR IOS OR XROS) )
endif()
OCV_OPTION(ENABLE_NOISY_WARNINGS "Show all warnings even if they are too noisy" OFF )
OCV_OPTION(OPENCV_WARNINGS_ARE_ERRORS "Treat warnings as errors" OFF )
OCV_OPTION(ANDROID_EXAMPLES_WITH_LIBS "Build binaries of Android examples with native libraries" OFF IF ANDROID )
OCV_OPTION(ENABLE_IMPL_COLLECTION "Collect implementation data on function call" OFF )
OCV_OPTION(ENABLE_INSTRUMENTATION "Instrument functions to collect calls trace and performance" OFF )
OCV_OPTION(ENABLE_GNU_STL_DEBUG "Enable GNU STL Debug mode (defines _GLIBCXX_DEBUG)" OFF IF CV_GCC )
OCV_OPTION(ENABLE_BUILD_HARDENING "Enable hardening of the resulting binaries (against security attacks, detects memory corruption, etc)" OFF)
OCV_OPTION(ENABLE_LTO "Enable Link Time Optimization" OFF IF CV_GCC OR MSVC)
OCV_OPTION(ENABLE_THIN_LTO "Enable Thin LTO" OFF IF CV_CLANG)
OCV_OPTION(GENERATE_ABI_DESCRIPTOR "Generate XML file for abi_compliance_checker tool" OFF IF UNIX)
OCV_OPTION(OPENCV_GENERATE_PKGCONFIG "Generate .pc file for pkg-config build tool (deprecated)" OFF)
OCV_OPTION(CV_ENABLE_INTRINSICS "Use intrinsic-based optimized code" ON )
OCV_OPTION(CV_DISABLE_OPTIMIZATION "Disable explicit optimized code (dispatched code/intrinsics/loop unrolling/etc)" OFF )
OCV_OPTION(CV_TRACE "Enable OpenCV code trace" ON)
OCV_OPTION(OPENCV_GENERATE_SETUPVARS "Generate setup_vars* scripts" ON IF (NOT ANDROID AND NOT APPLE_FRAMEWORK) )
OCV_OPTION(ENABLE_CONFIG_VERIFICATION "Fail build if actual configuration doesn't match requested (WITH_XXX != HAVE_XXX)" OFF)
OCV_OPTION(OPENCV_ENABLE_MEMALIGN "Enable posix_memalign or memalign usage" ON)
OCV_OPTION(OPENCV_DISABLE_FILESYSTEM_SUPPORT "Disable filesystem support" OFF)
OCV_OPTION(OPENCV_DISABLE_THREAD_SUPPORT "Build the library without multi-threaded code." OFF)
OCV_OPTION(OPENCV_SEMIHOSTING "Build the library for semihosting target (Arm). See https://developer.arm.com/documentation/100863/latest." OFF)
OCV_OPTION(ENABLE_CUDA_FIRST_CLASS_LANGUAGE "Enable CUDA as a first class language, if enabled dependant projects will need to use CMake >= 3.18" OFF
VISIBLE_IF (WITH_CUDA AND NOT CMAKE_VERSION VERSION_LESS 3.18)
VERIFY HAVE_CUDA)
OCV_OPTION(ENABLE_PYLINT "Add target with Pylint checks" (BUILD_DOCS OR BUILD_EXAMPLES) IF (NOT CMAKE_CROSSCOMPILING AND NOT APPLE_FRAMEWORK) )
OCV_OPTION(ENABLE_FLAKE8 "Add target with Python flake8 checker" (BUILD_DOCS OR BUILD_EXAMPLES) IF (NOT CMAKE_CROSSCOMPILING AND NOT APPLE_FRAMEWORK) )
if(ENABLE_IMPL_COLLECTION)
add_definitions(-DCV_COLLECT_IMPL_DATA)
endif()
if(OPENCV_DISABLE_FILESYSTEM_SUPPORT)
add_definitions(-DOPENCV_HAVE_FILESYSTEM_SUPPORT=0)
endif()
# MathJax is used for math rendering by both Doxygen HTML and JavaDoc, so
# this var have to be defined before "modules" AND "doc" are processed
set(OPENCV_MATHJAX_RELPATH "https://cdn.jsdelivr.net/npm/mathjax@3.0.1" CACHE STRING "URI to a MathJax installation")
# ----------------------------------------------------------------------------
# Get actual OpenCV version number from sources
# ----------------------------------------------------------------------------
include(cmake/OpenCVVersion.cmake)
ocv_cmake_hook(POST_OPTIONS)
# ----------------------------------------------------------------------------
# Build & install layouts
# ----------------------------------------------------------------------------
if(OPENCV_TEST_DATA_PATH)
get_filename_component(OPENCV_TEST_DATA_PATH ${OPENCV_TEST_DATA_PATH} ABSOLUTE)
endif()
# Save libs and executables in the same place
set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}/bin" CACHE PATH "Output directory for applications")
if(ANDROID)
set(LIBRARY_OUTPUT_PATH "${OpenCV_BINARY_DIR}/lib/${ANDROID_NDK_ABI_NAME}")
ocv_update(3P_LIBRARY_OUTPUT_PATH "${OpenCV_BINARY_DIR}/3rdparty/lib/${ANDROID_NDK_ABI_NAME}")
else()
set(LIBRARY_OUTPUT_PATH "${OpenCV_BINARY_DIR}/lib")
ocv_update(3P_LIBRARY_OUTPUT_PATH "${OpenCV_BINARY_DIR}/3rdparty/lib")
endif()
if(ANDROID)
if(ANDROID_ABI MATCHES "NEON")
set(ENABLE_NEON ON)
endif()
if(ANDROID_ABI MATCHES "VFPV3")
set(ENABLE_VFPV3 ON)
endif()
endif()
if(WIN32)
# Postfix of DLLs:
ocv_update(OPENCV_DLLVERSION "${OPENCV_VERSION_MAJOR}${OPENCV_VERSION_MINOR}${OPENCV_VERSION_PATCH}")
ocv_update(OPENCV_DEBUG_POSTFIX d)
else()
# Postfix of so's:
ocv_update(OPENCV_DLLVERSION "")
ocv_update(OPENCV_DEBUG_POSTFIX "")
endif()
if(DEFINED CMAKE_DEBUG_POSTFIX)
set(OPENCV_DEBUG_POSTFIX "${CMAKE_DEBUG_POSTFIX}")
endif()
if((INSTALL_CREATE_DISTRIB AND BUILD_SHARED_LIBS AND NOT DEFINED BUILD_opencv_world) OR APPLE_FRAMEWORK)
set(BUILD_opencv_world ON CACHE INTERNAL "")
endif()
include(cmake/OpenCVInstallLayout.cmake)
# ----------------------------------------------------------------------------
# Path for build/platform -specific headers
# ----------------------------------------------------------------------------
ocv_update(OPENCV_CONFIG_FILE_INCLUDE_DIR "${CMAKE_BINARY_DIR}/" CACHE PATH "Where to create the platform-dependant cvconfig.h")
ocv_include_directories(${OPENCV_CONFIG_FILE_INCLUDE_DIR})
# ----------------------------------------------------------------------------
# Path for additional modules
# ----------------------------------------------------------------------------
set(OPENCV_EXTRA_MODULES_PATH "" CACHE PATH "Where to look for additional OpenCV modules (can be ;-separated list of paths)")
# ----------------------------------------------------------------------------
# Autodetect if we are in a GIT repository
# ----------------------------------------------------------------------------
find_host_package(Git QUIET)
if(NOT DEFINED OPENCV_VCSVERSION AND GIT_FOUND)
ocv_git_describe(OPENCV_VCSVERSION "${OpenCV_SOURCE_DIR}")
elseif(NOT DEFINED OPENCV_VCSVERSION)
# We don't have git:
set(OPENCV_VCSVERSION "unknown")
endif()
# ----------------------------------------------------------------------------
# OpenCV compiler and linker options
# ----------------------------------------------------------------------------
ocv_cmake_hook(POST_CMAKE_BUILD_OPTIONS)
# --- Python Support ---
if(NOT IOS AND NOT XROS)
include(cmake/OpenCVDetectPython.cmake)
endif()
include(cmake/OpenCVCompilerOptions.cmake)
ocv_cmake_hook(POST_COMPILER_OPTIONS)
# --- CUDA Support ---
if(ENABLE_CUDA_FIRST_CLASS_LANGUAGE)
if(CMAKE_VERSION VERSION_LESS 3.18)
message(WARNING "CUDA: First class language only supported for CMake versions >= 3.18, falling back to FindCUDA!")
set(ENABLE_CUDA_FIRST_CLASS_LANGUAGE OFF CACHE BOOL "Enable CUDA as a first class language, if enabled dependant projects will need to use CMake >= 3.18" FORCE)
else()
# Check CUDA_PATH if supplied
if(UNIX AND CUDA_PATH AND NOT ENV{CUDA_PATH})
set(ENV{CUDA_PATH} ${CUDA_PATH})
elseif(WIN32 AND CUDA_PATH)
set(ENV{PATH} "${CUDA_PATH}\\bin\;$ENV{PATH}")
endif()
include(CheckLanguage)
check_language(CUDA)
# Fallback to checking default locations
if(NOT CMAKE_CUDA_COMPILER)
# Checking windows default search location isn't possible because the CUDA Toolkit is installed to C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/vXX.X
if(WIN32)
if(CMAKE_GENERATOR MATCHES "Visual Studio")
message(STATUS "CUDA: Not detected, when using stand alone installations with the Visual Studio generator the path to the CUDA toolkit should be manually specified with -Tcuda=. e.g. -Tcuda=\"C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/vXX.X\"")
else()
message(STATUS "CUDA: Not detected, for stand alone installations the path to the CUDA toolkit should be manually specified with -DCUDA_PATH=. e.g. -DCUDA_PATH=\"C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/vXX.X\"")
endif()
elseif(UNIX)
message(STATUS "CUDA: Not detected, make sure you have performed the mandatory Post-installation actions described in the CUDA installation guide.\n For stand alone installations you can set the CUDA_PATH environmental or CMake variable. e.g. export CUDA_PATH=/usr/local/cuda-XX.X or -DCUDA_PATH=/usr/local/cuda-XX.X.")
message(STATUS "CUDA: Falling back to searching for the CUDA compiler in its default location (/usr/local/cuda)")
set(CUDA_PATH "/usr/local/cuda" CACHE INTERNAL "")
set(ENV{CUDA_PATH} ${CUDA_PATH})
unset(CMAKE_CUDA_COMPILER CACHE)
unset(CMAKE_CUDA_COMPILER)
check_language(CUDA)
endif()
endif()
cmake_policy(SET CMP0092 NEW) # CMake 3.15+: leave warning flags out of default CMAKE_<LANG>_FLAGS flags.
if(CMAKE_CUDA_COMPILER)
if(CMAKE_CUDA_ARCHITECTURES)
set(USER_DEFINED_CMAKE_CUDA_ARCHITECTURES TRUE)
endif()
enable_language(CUDA)
if(NOT USER_DEFINED_CMAKE_CUDA_ARCHITECTURES)
set(CMAKE_CUDA_ARCHITECTURES "")
endif()
elseif(UNIX)
message(WARNING "CUDA: Not detected! If you are not using the default host compiler (g++) then you need to specify both CMAKE_CUDA_HOST_COMPILER and CMAKE_CUDA_COMPILER. e.g. -DCMAKE_CUDA_HOST_COMPILER=/usr/bin/clang++ -DCMAKE_CUDA_COMPILER=/usr/local/cuda/bin/nvcc.")
endif()
endif()
endif()
# ----------------------------------------------------------------------------
# CHECK FOR SYSTEM LIBRARIES, OPTIONS, ETC..
# ----------------------------------------------------------------------------
if(UNIX OR MINGW)
if(NOT APPLE_FRAMEWORK OR OPENCV_ENABLE_PKG_CONFIG)
if(CMAKE_CROSSCOMPILING AND NOT DEFINED ENV{PKG_CONFIG_LIBDIR} AND NOT DEFINED ENV{PKG_CONFIG_SYSROOT_DIR}
AND NOT OPENCV_ENABLE_PKG_CONFIG
)
if(NOT PkgConfig_FOUND)
message(STATUS "OpenCV disables pkg-config to avoid using of host libraries. Consider using PKG_CONFIG_LIBDIR to specify target SYSROOT")
elseif(OPENCV_SKIP_PKG_CONFIG_WARNING)
message(WARNING "pkg-config is enabled in cross-compilation mode without defining of PKG_CONFIG_LIBDIR environment variable. This may lead to misconfigured host-based dependencies.")
endif()
elseif(OPENCV_DISABLE_PKG_CONFIG)
if(PkgConfig_FOUND)
message(WARNING "OPENCV_DISABLE_PKG_CONFIG flag has no effect")
endif()
else()
find_package(PkgConfig QUIET)
endif()
endif()
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckSymbolExists)
if(NOT APPLE)
CHECK_INCLUDE_FILE(pthread.h HAVE_PTHREAD)
if(ANDROID)
set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} dl m log)
elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD|NetBSD|DragonFly|OpenBSD|Haiku")
set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} m pthread)
elseif(EMSCRIPTEN)
# no need to link to system libs with emscripten
elseif(QNXNTO)
set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} m regex)
elseif(MINGW)
set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} pthread)
else()
set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} dl m pthread rt)
endif()
else()
set(HAVE_PTHREAD 1)
endif()
# Ensure that libpthread is not listed as one of the libraries to pass to the linker.
if (OPENCV_DISABLE_THREAD_SUPPORT)
list(REMOVE_ITEM OPENCV_LINKER_LIBS pthread)
endif()
if(OPENCV_ENABLE_MEMALIGN)
CHECK_SYMBOL_EXISTS(posix_memalign stdlib.h HAVE_POSIX_MEMALIGN)
CHECK_INCLUDE_FILE(malloc.h HAVE_MALLOC_H)
if(HAVE_MALLOC_H)
CHECK_SYMBOL_EXISTS(memalign malloc.h HAVE_MEMALIGN)
endif()
# TODO:
# - std::aligned_alloc() C++17 / C11
endif()
elseif(WIN32)
include(CheckIncludeFile)
include(CheckSymbolExists)
if(OPENCV_ENABLE_MEMALIGN)
CHECK_INCLUDE_FILE(malloc.h HAVE_MALLOC_H)
if(HAVE_MALLOC_H)
CHECK_SYMBOL_EXISTS(_aligned_malloc malloc.h HAVE_WIN32_ALIGNED_MALLOC)
endif()
endif()
endif()
include(cmake/OpenCVPCHSupport.cmake)
include(cmake/OpenCVModule.cmake)
# ----------------------------------------------------------------------------
# Detect endianness of build platform
# ----------------------------------------------------------------------------
if(IOS OR XROS)
# test_big_endian needs try_compile, which doesn't work for iOS
# http://public.kitware.com/Bug/view.php?id=12288
set(WORDS_BIGENDIAN 0)
else()
include(TestBigEndian)
test_big_endian(WORDS_BIGENDIAN)
endif()
# ----------------------------------------------------------------------------
# Detect 3rd-party libraries
# ----------------------------------------------------------------------------
if(ANDROID AND WITH_CPUFEATURES)
add_subdirectory(3rdparty/cpufeatures)
set(HAVE_CPUFEATURES 1)
endif()
include(cmake/OpenCVFindFrameworks.cmake)
include(cmake/OpenCVFindLibsGrfmt.cmake)
include(cmake/OpenCVFindLibsGUI.cmake)
include(cmake/OpenCVFindLibsVideo.cmake)
include(cmake/OpenCVFindLibsPerf.cmake)
include(cmake/OpenCVFindLAPACK.cmake)
include(cmake/OpenCVFindProtobuf.cmake)
include(cmake/OpenCVDetectFlatbuffers.cmake)
if(WITH_TIMVX)
include(cmake/OpenCVFindTIMVX.cmake)
endif()
if(WITH_CANN)
include(cmake/OpenCVFindCANN.cmake)
endif()
# ----------------------------------------------------------------------------
# Detect other 3rd-party libraries/tools
# ----------------------------------------------------------------------------
# --- Java Support ---
if(BUILD_JAVA)
if(ANDROID)
include(cmake/android/OpenCVDetectAndroidSDK.cmake)
else()
include(cmake/OpenCVDetectApacheAnt.cmake)
if(ANT_EXECUTABLE AND NOT OPENCV_JAVA_IGNORE_ANT)
ocv_update(OPENCV_JAVA_SDK_BUILD_TYPE "ANT")
elseif(NOT ANDROID)
find_package(Java)
if(Java_FOUND)
include(UseJava)
ocv_update(OPENCV_JAVA_SDK_BUILD_TYPE "JAVA")
endif()
endif()
find_package(JNI)
endif()
endif()
if(ENABLE_PYLINT AND PYTHON_DEFAULT_AVAILABLE)
include(cmake/OpenCVPylint.cmake)
endif()
if(ENABLE_FLAKE8 AND PYTHON_DEFAULT_AVAILABLE)
find_package(Flake8 QUIET)
if(NOT FLAKE8_FOUND OR NOT FLAKE8_EXECUTABLE)
include("${CMAKE_CURRENT_LIST_DIR}/cmake/FindFlake8.cmake")
endif()
if(FLAKE8_FOUND)
list(APPEND OPENCV_FLAKE8_EXCLUDES ".git" "__pycache__" "config.py" "*.config.py" "config-*.py")
list(APPEND OPENCV_FLAKE8_EXCLUDES "svgfig.py") # 3rdparty
if(NOT PYTHON3_VERSION_STRING VERSION_GREATER 3.6)
# Python 3.6+ (PEP 526): variable annotations (type hints)
list(APPEND OPENCV_FLAKE8_EXCLUDES "samples/dnn/dnn_model_runner/dnn_conversion/common/test/configs")
endif()
string(REPLACE ";" "," OPENCV_FLAKE8_EXCLUDES_STR "${OPENCV_FLAKE8_EXCLUDES}")
add_custom_target(check_flake8
COMMAND "${FLAKE8_EXECUTABLE}" . --count --select=E9,E901,E999,F821,F822,F823 --show-source --statistics --exclude='${OPENCV_FLAKE8_EXCLUDES_STR}'
WORKING_DIRECTORY "${OpenCV_SOURCE_DIR}"
COMMENT "Running flake8"
)
endif()
endif()
if(ANDROID AND ANDROID_EXECUTABLE AND ANT_EXECUTABLE AND (ANT_VERSION VERSION_GREATER 1.7) AND (ANDROID_TOOLS_Pkg_Revision GREATER 13))
SET(CAN_BUILD_ANDROID_PROJECTS TRUE)
else()
SET(CAN_BUILD_ANDROID_PROJECTS FALSE)
endif()
# --- OpenCL ---
if(WITH_OPENCL)
include(cmake/OpenCVDetectOpenCL.cmake)
endif()
# --- Halide ---
if(WITH_HALIDE)
include(cmake/OpenCVDetectHalide.cmake)
endif()
# --- VkCom ---
if(WITH_VULKAN)
include(cmake/OpenCVDetectVulkan.cmake)
endif()
# --- WebNN ---
if(WITH_WEBNN)
include(cmake/OpenCVDetectWebNN.cmake)
endif()
# --- Inference Engine ---
if(WITH_INF_ENGINE OR WITH_OPENVINO)
include(cmake/OpenCVDetectInferenceEngine.cmake)
endif()
# --- DirectX ---
if(WITH_DIRECTX)
include(cmake/OpenCVDetectDirectX.cmake)
endif()
# --- DirectML ---
if(WITH_DIRECTML)
include(cmake/OpenCVDetectDirectML.cmake)
endif()
if(WITH_VTK)
include(cmake/OpenCVDetectVTK.cmake)
endif()
if(WITH_OPENVX)
include(cmake/FindOpenVX.cmake)
endif()
if(WITH_QUIRC)
add_subdirectory(3rdparty/quirc)
set(HAVE_QUIRC TRUE)
endif()
if(WITH_ONNX)
include(cmake/FindONNX.cmake)
endif()
# ----------------------------------------------------------------------------
# OpenCV HAL
# ----------------------------------------------------------------------------
set(_hal_includes "")
macro(ocv_hal_register HAL_LIBRARIES_VAR HAL_HEADERS_VAR HAL_INCLUDE_DIRS_VAR)
# 1. libraries
foreach (l ${${HAL_LIBRARIES_VAR}})
if(NOT TARGET ${l})
get_filename_component(l "${l}" ABSOLUTE)
endif()
list(APPEND OPENCV_HAL_LINKER_LIBS ${l})
endforeach()
# 2. headers
foreach (h ${${HAL_HEADERS_VAR}})
set(_hal_includes "${_hal_includes}\n#include \"${h}\"")
endforeach()
# 3. include paths
ocv_include_directories(${${HAL_INCLUDE_DIRS_VAR}})
endmacro()
if(NOT DEFINED OpenCV_HAL)
set(OpenCV_HAL "OpenCV_HAL")
endif()
if(HAVE_OPENVX)
if(NOT ";${OpenCV_HAL};" MATCHES ";openvx;")
set(OpenCV_HAL "openvx;${OpenCV_HAL}")
endif()
endif()
if(WITH_KLEIDICV)
ocv_debug_message(STATUS "Enable KleidiCV acceleration")
if(NOT ";${OpenCV_HAL};" MATCHES ";kleidicv;")
set(OpenCV_HAL "kleidicv;${OpenCV_HAL}")
endif()
endif()
if(WITH_CAROTENE)
ocv_debug_message(STATUS "Enable carotene acceleration")
if(NOT ";${OpenCV_HAL};" MATCHES ";carotene;")
set(OpenCV_HAL "carotene;${OpenCV_HAL}")
endif()
endif()