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opencv/cmake/OpenCVDetectCXXCompiler.cmake
Benjamin Buch f85818ba6f
Support VS 2022 17.1x.y in OpenCVDetectCXXCompiler.cmake 
With 17.10.0 the MSVC toolset was set to 19.40.x which breaks the compatibility test in the OpenCV's CMake Config files.
2024-05-24 11:10:09 +02:00

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CMake
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# Compilers:
# - CV_GCC - GNU compiler (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
# - CV_CLANG - Clang-compatible compiler (CMAKE_CXX_COMPILER_ID MATCHES "Clang" - Clang or AppleClang, see CMP0025)
# - CV_ICC - Intel compiler
# - MSVC - Microsoft Visual Compiler (CMake variable)
# - MINGW / CYGWIN / CMAKE_COMPILER_IS_MINGW / CMAKE_COMPILER_IS_CYGWIN (CMake original variables)
#
# CPU Platforms:
# - X86 / X86_64
# - ARM - ARM CPU, not defined for AArch64
# - AARCH64 - ARMv8+ (64-bit)
# - PPC64 / PPC64LE - PowerPC
# - MIPS
#
# OS:
# - WIN32 - Windows | MINGW
# - UNIX - Linux | MacOSX | ANDROID
# - ANDROID
# - IOS
# - APPLE - MacOSX | iOS
# ----------------------------------------------------------------------------
ocv_declare_removed_variables(MINGW64 MSVC64)
# do not use (CMake variables): CMAKE_CL_64
if(NOT DEFINED CV_GCC AND CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(CV_GCC 1)
endif()
if(NOT DEFINED CV_CLANG AND CMAKE_CXX_COMPILER_ID MATCHES "Clang") # Clang or AppleClang (see CMP0025)
set(CV_CLANG 1)
endif()
# ----------------------------------------------------------------------------
# Detect Intel ICC compiler
# ----------------------------------------------------------------------------
if(UNIX)
if(__ICL)
set(CV_ICC __ICL)
elseif(__ICC)
set(CV_ICC __ICC)
elseif(__ECL)
set(CV_ICC __ECL)
elseif(__ECC)
set(CV_ICC __ECC)
elseif(__INTEL_COMPILER)
set(CV_ICC __INTEL_COMPILER)
elseif(CMAKE_C_COMPILER MATCHES "icc")
set(CV_ICC icc_matches_c_compiler)
endif()
endif()
if(MSVC AND CMAKE_C_COMPILER MATCHES "icc|icl")
set(CV_ICC __INTEL_COMPILER_FOR_WINDOWS)
endif()
# ----------------------------------------------------------------------------
# Detect Intel ICXC compiler
# ----------------------------------------------------------------------------
if(UNIX)
if(__INTEL_COMPILER)
set(CV_ICX __INTEL_LLVM_COMPILER)
elseif(CMAKE_C_COMPILER MATCHES "icx")
set(CV_ICX icx_matches_c_compiler)
elseif(CMAKE_CXX_COMPILER MATCHES "icpx")
set(CV_ICX icpx_matches_cxx_compiler)
endif()
endif()
if(MSVC AND CMAKE_CXX_COMPILER MATCHES ".*(dpcpp-cl|dpcpp|icx-cl|icpx|icx)(.exe)?$")
set(CV_ICX __INTEL_LLVM_COMPILER_WINDOWS)
endif()
if(NOT DEFINED CMAKE_CXX_COMPILER_VERSION
AND NOT OPENCV_SUPPRESS_MESSAGE_MISSING_COMPILER_VERSION)
message(WARNING "OpenCV: Compiler version is not available: CMAKE_CXX_COMPILER_VERSION is not set")
endif()
if((NOT DEFINED CMAKE_SYSTEM_PROCESSOR OR CMAKE_SYSTEM_PROCESSOR STREQUAL "")
AND NOT OPENCV_SUPPRESS_MESSAGE_MISSING_CMAKE_SYSTEM_PROCESSOR)
message(WARNING "OpenCV: CMAKE_SYSTEM_PROCESSOR is not defined. Perhaps CMake toolchain is broken")
endif()
if(NOT DEFINED CMAKE_SIZEOF_VOID_P
AND NOT OPENCV_SUPPRESS_MESSAGE_MISSING_CMAKE_SIZEOF_VOID_P)
message(WARNING "OpenCV: CMAKE_SIZEOF_VOID_P is not defined. Perhaps CMake toolchain is broken")
endif()
message(STATUS "Detected processor: ${CMAKE_SYSTEM_PROCESSOR}")
if(OPENCV_SKIP_SYSTEM_PROCESSOR_DETECTION)
# custom setup: required variables are passed through cache / CMake's command-line
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*")
set(X86_64 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686.*|i386.*|x86.*")
set(X86 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*|arm64.*|ARM64.*)")
set(AARCH64 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm.*|ARM.*)")
set(ARM 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64le")
set(PPC64LE 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(powerpc|ppc)64")
set(PPC64 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(mips.*|MIPS.*)")
set(MIPS 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(riscv.*|RISCV.*)")
set(RISCV 1)
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(loongarch64.*|LOONGARCH64.*)")
set(LOONGARCH64 1)
else()
if(NOT OPENCV_SUPPRESS_MESSAGE_UNRECOGNIZED_SYSTEM_PROCESSOR)
message(WARNING "OpenCV: unrecognized target processor configuration")
endif()
endif()
# Workaround for 32-bit operating systems on x86_64
if(CMAKE_SIZEOF_VOID_P EQUAL 4 AND X86_64
AND NOT FORCE_X86_64 # deprecated (2019-12)
AND NOT OPENCV_FORCE_X86_64
)
message(STATUS "sizeof(void) = 4 on 64 bit processor. Assume 32-bit compilation mode")
if(X86_64)
unset(X86_64)
set(X86 1)
endif()
endif()
# Workaround for 32-bit operating systems on aarch64 processor
if(CMAKE_SIZEOF_VOID_P EQUAL 4 AND AARCH64
AND NOT OPENCV_FORCE_AARCH64
)
message(STATUS "sizeof(void) = 4 on 64 bit processor. Assume 32-bit compilation mode")
if(AARCH64)
unset(AARCH64)
set(ARM 1)
endif()
endif()
# Similar code exists in OpenCVConfig.cmake
if(NOT DEFINED OpenCV_STATIC)
# look for global setting
if(NOT DEFINED BUILD_SHARED_LIBS OR BUILD_SHARED_LIBS)
set(OpenCV_STATIC OFF)
else()
set(OpenCV_STATIC ON)
endif()
endif()
if(DEFINED OpenCV_ARCH AND DEFINED OpenCV_RUNTIME)
# custom overridden values
elseif(MSVC)
# see Modules/CMakeGenericSystem.cmake
if("${CMAKE_GENERATOR}" MATCHES "(Win64|IA64)")
set(OpenCV_ARCH "x64")
elseif("${CMAKE_GENERATOR_PLATFORM}" MATCHES "ARM64")
set(OpenCV_ARCH "ARM64")
elseif("${CMAKE_GENERATOR}" MATCHES "ARM")
set(OpenCV_ARCH "ARM")
elseif("${CMAKE_SIZEOF_VOID_P}" STREQUAL "8")
set(OpenCV_ARCH "x64")
else()
set(OpenCV_ARCH x86)
endif()
if(MSVC_VERSION EQUAL 1400)
set(OpenCV_RUNTIME vc8)
elseif(MSVC_VERSION EQUAL 1500)
set(OpenCV_RUNTIME vc9)
elseif(MSVC_VERSION EQUAL 1600)
set(OpenCV_RUNTIME vc10)
elseif(MSVC_VERSION EQUAL 1700)
set(OpenCV_RUNTIME vc11)
elseif(MSVC_VERSION EQUAL 1800)
set(OpenCV_RUNTIME vc12)
elseif(MSVC_VERSION EQUAL 1900)
set(OpenCV_RUNTIME vc14)
elseif(MSVC_VERSION MATCHES "^191[0-9]$")
set(OpenCV_RUNTIME vc15)
elseif(MSVC_VERSION MATCHES "^192[0-9]$")
set(OpenCV_RUNTIME vc16)
elseif(MSVC_VERSION MATCHES "^19[34][0-9]$")
set(OpenCV_RUNTIME vc17)
else()
message(WARNING "OpenCV does not recognize MSVC_VERSION \"${MSVC_VERSION}\". Cannot set OpenCV_RUNTIME")
endif()
elseif(MINGW)
set(OpenCV_RUNTIME mingw)
if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*")
set(OpenCV_ARCH x64)
else()
set(OpenCV_ARCH x86)
endif()
endif()
# Fix handling of duplicated files in the same static library:
# https://public.kitware.com/Bug/view.php?id=14874
if(CMAKE_VERSION VERSION_LESS "3.1")
foreach(var CMAKE_C_ARCHIVE_APPEND CMAKE_CXX_ARCHIVE_APPEND)
if(${var} MATCHES "^<CMAKE_AR> r")
string(REPLACE "<CMAKE_AR> r" "<CMAKE_AR> q" ${var} "${${var}}")
endif()
endforeach()
endif()
if(NOT OPENCV_SKIP_CMAKE_CXX_STANDARD)
ocv_update(CMAKE_CXX_STANDARD 11)
ocv_update(CMAKE_CXX_STANDARD_REQUIRED TRUE)
ocv_update(CMAKE_CXX_EXTENSIONS OFF) # use -std=c++11 instead of -std=gnu++11
if(CMAKE_CXX11_COMPILE_FEATURES)
set(HAVE_CXX11 ON)
endif()
endif()
if(NOT HAVE_CXX11)
ocv_check_compiler_flag(CXX "" HAVE_CXX11 "${OpenCV_SOURCE_DIR}/cmake/checks/cxx11.cpp")
if(NOT HAVE_CXX11)
ocv_check_compiler_flag(CXX "-std=c++11" HAVE_STD_CXX11 "${OpenCV_SOURCE_DIR}/cmake/checks/cxx11.cpp")
if(HAVE_STD_CXX11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(HAVE_CXX11 ON)
endif()
endif()
endif()
if(NOT HAVE_CXX11)
message(FATAL_ERROR "OpenCV 4.x requires C++11")
endif()
set(__OPENCV_ENABLE_ATOMIC_LONG_LONG OFF)
if(HAVE_CXX11 AND (X86 OR X86_64))
set(__OPENCV_ENABLE_ATOMIC_LONG_LONG ON)
endif()
option(OPENCV_ENABLE_ATOMIC_LONG_LONG "Enable C++ compiler support for atomic<long long>" ${__OPENCV_ENABLE_ATOMIC_LONG_LONG})
if((HAVE_CXX11 AND OPENCV_ENABLE_ATOMIC_LONG_LONG
AND NOT MSVC
AND NOT (X86 OR X86_64)
AND NOT OPENCV_SKIP_LIBATOMIC_COMPILER_CHECK)
OR OPENCV_FORCE_LIBATOMIC_COMPILER_CHECK
)
ocv_check_compiler_flag(CXX "" HAVE_CXX_ATOMICS_WITHOUT_LIB "${OpenCV_SOURCE_DIR}/cmake/checks/atomic_check.cpp")
if(NOT HAVE_CXX_ATOMICS_WITHOUT_LIB)
list(APPEND CMAKE_REQUIRED_LIBRARIES atomic)
ocv_check_compiler_flag(CXX "" HAVE_CXX_ATOMICS_WITH_LIB "${OpenCV_SOURCE_DIR}/cmake/checks/atomic_check.cpp")
if(HAVE_CXX_ATOMICS_WITH_LIB)
set(HAVE_ATOMIC_LONG_LONG ON)
list(APPEND OPENCV_LINKER_LIBS atomic)
else()
message(STATUS "Compiler doesn't support std::atomic<long long>")
endif()
else()
set(HAVE_ATOMIC_LONG_LONG ON)
endif()
else(HAVE_CXX11 AND OPENCV_ENABLE_ATOMIC_LONG_LONG)
set(HAVE_ATOMIC_LONG_LONG ${OPENCV_ENABLE_ATOMIC_LONG_LONG})
endif()
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