将OpenCVDetectCXXCompiler.cmake替换成下列内容
# ---------------------------------------------------------------------------- # Detect Microsoft compiler: # ---------------------------------------------------------------------------- if(CMAKE_CL_64) set(MSVC64 1) endif()
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang") set(CMAKE_COMPILER_IS_GNUCXX 1) set(CMAKE_COMPILER_IS_CLANGCXX 1) endif() if(CMAKE_C_COMPILER_ID STREQUAL "Clang") set(CMAKE_COMPILER_IS_GNUCC 1) set(CMAKE_COMPILER_IS_CLANGCC 1) endif() if("${CMAKE_CXX_COMPILER};${CMAKE_C_COMPILER}" MATCHES "ccache") set(CMAKE_COMPILER_IS_CCACHE 1) endif()
# ---------------------------------------------------------------------------- # Detect Intel ICC compiler -- for -fPIC in 3rdparty ( UNIX ONLY ): # see include/opencv/cxtypes.h file for related ICC & CV_ICC defines. # NOTE: The system needs to determine if the '-fPIC' option needs to be added # for the 3rdparty static libs being compiled. The CMakeLists.txt files # in 3rdparty use the CV_ICC definition being set here to determine if # the -fPIC flag should be used. # ---------------------------------------------------------------------------- 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 GNU version: # ---------------------------------------------------------------------------- if(CMAKE_COMPILER_IS_CLANGCXX) set(CMAKE_GCC_REGEX_VERSION "4.2.1") set(CMAKE_OPENCV_GCC_VERSION_MAJOR 4) set(CMAKE_OPENCV_GCC_VERSION_MINOR 2) set(CMAKE_OPENCV_GCC_VERSION 42) set(CMAKE_OPENCV_GCC_VERSION_NUM 402)
execute_process(COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -v ERROR_VARIABLE CMAKE_OPENCV_CLANG_VERSION_FULL ERROR_STRIP_TRAILING_WHITESPACE)
string(REGEX MATCH "version.*$" CMAKE_OPENCV_CLANG_VERSION_FULL "${CMAKE_OPENCV_CLANG_VERSION_FULL}") string(REGEX MATCH "[0-9]+\\.[0-9]+" CMAKE_CLANG_REGEX_VERSION "${CMAKE_OPENCV_CLANG_VERSION_FULL}")
elseif(CMAKE_COMPILER_IS_GNUCXX) execute_process(COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -dumpversion OUTPUT_VARIABLE CMAKE_OPENCV_GCC_VERSION_FULL OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -v ERROR_VARIABLE CMAKE_OPENCV_GCC_INFO_FULL OUTPUT_STRIP_TRAILING_WHITESPACE)
# Typical output in CMAKE_OPENCV_GCC_VERSION_FULL: "c+//0 (whatever) 4.2.3 (...)" # Look for the version number, major.minor.build string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" CMAKE_GCC_REGEX_VERSION "${CMAKE_OPENCV_GCC_VERSION_FULL}") if(NOT CMAKE_GCC_REGEX_VERSION)#major.minor string(REGEX MATCH "[0-9]+\\.[0-9]+" CMAKE_GCC_REGEX_VERSION "${CMAKE_OPENCV_GCC_VERSION_FULL}") endif()
if(CMAKE_GCC_REGEX_VERSION) # Split the parts: string(REGEX MATCHALL "[0-9]+" CMAKE_OPENCV_GCC_VERSIONS "${CMAKE_GCC_REGEX_VERSION}")
list(GET CMAKE_OPENCV_GCC_VERSIONS 0 CMAKE_OPENCV_GCC_VERSION_MAJOR) list(GET CMAKE_OPENCV_GCC_VERSIONS 1 CMAKE_OPENCV_GCC_VERSION_MINOR) else()#compiler returned just the major version number string(REGEX MATCH "[0-9]+" CMAKE_GCC_REGEX_VERSION "${CMAKE_OPENCV_GCC_VERSION_FULL}") if(NOT CMAKE_GCC_REGEX_VERSION)#compiler did not return anything reasonable set(CMAKE_GCC_REGEX_VERSION "0") message(WARNING "GCC version not detected!") endif() set(CMAKE_OPENCV_GCC_VERSION_MAJOR ${CMAKE_GCC_REGEX_VERSION}) set(CMAKE_OPENCV_GCC_VERSION_MINOR 0) endif()
set(CMAKE_OPENCV_GCC_VERSION ${CMAKE_OPENCV_GCC_VERSION_MAJOR}${CMAKE_OPENCV_GCC_VERSION_MINOR}) math(EXPR CMAKE_OPENCV_GCC_VERSION_NUM "${CMAKE_OPENCV_GCC_VERSION_MAJOR}*100 + ${CMAKE_OPENCV_GCC_VERSION_MINOR}") message(STATUS "Detected version of GNU GCC: ${CMAKE_OPENCV_GCC_VERSION} (${CMAKE_OPENCV_GCC_VERSION_NUM})")
if(WIN32) execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpmachine OUTPUT_VARIABLE OPENCV_GCC_TARGET_MACHINE OUTPUT_STRIP_TRAILING_WHITESPACE) if(OPENCV_GCC_TARGET_MACHINE MATCHES "amd64|x86_64|AMD64") set(MINGW64 1) endif() endif() endif()
if(MSVC64 OR MINGW64) set(X86_64 1) elseif(MINGW OR (MSVC AND NOT CMAKE_CROSSCOMPILING)) set(X86 1) elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") set(X86_64 1) elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686.*|i386.*|x86.*|amd64.*|AMD64.*") set(X86 1) elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(arm.*|ARM.*)") set(ARM 1) elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)") set(AARCH64 1) endif()
# Workaround for 32-bit operating systems on 64-bit x86_64 processor if(X86_64 AND CMAKE_SIZEOF_VOID_P EQUAL 4 AND NOT FORCE_X86_64) message(STATUS "sizeof(void) = 4 on x86 / x86_64 processor. Assume 32-bit compilation mode (X86=1)") unset(X86_64) set(X86 1) endif()
# Similar code exists in OpenCVConfig.cmake if(NOT DEFINED OpenCV_STATIC) # look for global setting if(NOT DEFINED BUILD_SHARED_LIBS OR BUILD_SHARED_LIBS) set(OpenCV_STATIC OFF) else() set(OpenCV_STATIC ON) endif() endif()
if(MSVC) if(CMAKE_CL_64) set(OpenCV_ARCH x64) elseif((CMAKE_GENERATOR MATCHES "ARM") OR ("${arch_hint}" STREQUAL "ARM") OR (CMAKE_VS_EFFECTIVE_PLATFORMS MATCHES "ARM|arm")) # see Modules/CmakeGenericSystem.cmake set(OpenCV_ARCH ARM) 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 EQUAL 1910) set(OpenCV_RUNTIME vc15) endif() elseif(MINGW) set(OpenCV_RUNTIME mingw)
if(MINGW64) set(OpenCV_ARCH x64) else() set(OpenCV_ARCH x86) endif() endif()
-DENABLE_PRECOMPILED_HEADERS=OFF
找到opencv-2.4.10/build/modules/contrib/CMakeFiles/opencv_contrib.dir/flags.make文件，删掉-Werror=address
