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Open Source Computer Vision Library
https://opencv.org/
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112 lines
4.4 KiB
112 lines
4.4 KiB
# ---------------------------------------------------------------------------- |
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# Detect Microsoft compiler: |
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# ---------------------------------------------------------------------------- |
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if(CMAKE_CL_64) |
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set(MSVC64 1) |
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endif() |
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if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang") |
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set(CMAKE_COMPILER_IS_GNUCXX 1) |
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set(CMAKE_COMPILER_IS_CLANGCXX 1) |
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endif() |
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if(CMAKE_C_COMPILER_ID STREQUAL "Clang") |
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set(CMAKE_COMPILER_IS_GNUCC 1) |
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set(CMAKE_COMPILER_IS_CLANGCC 1) |
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endif() |
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if((CMAKE_COMPILER_IS_CLANGCXX OR CMAKE_COMPILER_IS_CLANGCC) AND NOT CMAKE_GENERATOR MATCHES "Xcode") |
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set(ENABLE_PRECOMPILED_HEADERS OFF CACHE BOOL "" FORCE) |
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endif() |
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# ---------------------------------------------------------------------------- |
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# Detect Intel ICC compiler -- for -fPIC in 3rdparty ( UNIX ONLY ): |
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# see include/opencv/cxtypes.h file for related ICC & CV_ICC defines. |
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# NOTE: The system needs to determine if the '-fPIC' option needs to be added |
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# for the 3rdparty static libs being compiled. The CMakeLists.txt files |
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# in 3rdparty use the CV_ICC definition being set here to determine if |
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# the -fPIC flag should be used. |
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# ---------------------------------------------------------------------------- |
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if(UNIX) |
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if (__ICL) |
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set(CV_ICC __ICL) |
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elseif(__ICC) |
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set(CV_ICC __ICC) |
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elseif(__ECL) |
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set(CV_ICC __ECL) |
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elseif(__ECC) |
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set(CV_ICC __ECC) |
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elseif(__INTEL_COMPILER) |
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set(CV_ICC __INTEL_COMPILER) |
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elseif(CMAKE_C_COMPILER MATCHES "icc") |
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set(CV_ICC icc_matches_c_compiler) |
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endif() |
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endif() |
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if(MSVC AND CMAKE_C_COMPILER MATCHES "icc") |
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set(CV_ICC __INTEL_COMPILER_FOR_WINDOWS) |
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endif() |
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# ---------------------------------------------------------------------------- |
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# Detect GNU version: |
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# ---------------------------------------------------------------------------- |
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if(CMAKE_COMPILER_IS_CLANGCXX) |
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set(CMAKE_GCC_REGEX_VERSION "4.2.1") |
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set(CMAKE_OPENCV_GCC_VERSION_MAJOR 4) |
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set(CMAKE_OPENCV_GCC_VERSION_MINOR 2) |
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set(CMAKE_OPENCV_GCC_VERSION 42) |
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set(CMAKE_OPENCV_GCC_VERSION_NUM 402) |
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execute_process(COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -v |
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ERROR_VARIABLE CMAKE_OPENCV_CLANG_VERSION_FULL |
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ERROR_STRIP_TRAILING_WHITESPACE) |
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string(REGEX MATCH "version.*$" CMAKE_OPENCV_CLANG_VERSION_FULL "${CMAKE_OPENCV_CLANG_VERSION_FULL}") |
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string(REGEX MATCH "[0-9]+\\.[0-9]+" CMAKE_CLANG_REGEX_VERSION "${CMAKE_OPENCV_CLANG_VERSION_FULL}") |
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elseif(CMAKE_COMPILER_IS_GNUCXX) |
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execute_process(COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -dumpversion |
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OUTPUT_VARIABLE CMAKE_OPENCV_GCC_VERSION_FULL |
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OUTPUT_STRIP_TRAILING_WHITESPACE) |
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execute_process(COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -v |
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ERROR_VARIABLE CMAKE_OPENCV_GCC_INFO_FULL |
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OUTPUT_STRIP_TRAILING_WHITESPACE) |
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# Typical output in CMAKE_OPENCV_GCC_VERSION_FULL: "c+//0 (whatever) 4.2.3 (...)" |
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# Look for the version number |
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string(REGEX MATCH "[0-9]+\\.[0-9]+\\.[0-9]+" CMAKE_GCC_REGEX_VERSION "${CMAKE_OPENCV_GCC_VERSION_FULL}") |
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if(NOT CMAKE_GCC_REGEX_VERSION) |
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string(REGEX MATCH "[0-9]+\\.[0-9]+" CMAKE_GCC_REGEX_VERSION "${CMAKE_OPENCV_GCC_VERSION_FULL}") |
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endif() |
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# Split the three parts: |
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string(REGEX MATCHALL "[0-9]+" CMAKE_OPENCV_GCC_VERSIONS "${CMAKE_GCC_REGEX_VERSION}") |
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list(GET CMAKE_OPENCV_GCC_VERSIONS 0 CMAKE_OPENCV_GCC_VERSION_MAJOR) |
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list(GET CMAKE_OPENCV_GCC_VERSIONS 1 CMAKE_OPENCV_GCC_VERSION_MINOR) |
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set(CMAKE_OPENCV_GCC_VERSION ${CMAKE_OPENCV_GCC_VERSION_MAJOR}${CMAKE_OPENCV_GCC_VERSION_MINOR}) |
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math(EXPR CMAKE_OPENCV_GCC_VERSION_NUM "${CMAKE_OPENCV_GCC_VERSION_MAJOR}*100 + ${CMAKE_OPENCV_GCC_VERSION_MINOR}") |
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message(STATUS "Detected version of GNU GCC: ${CMAKE_OPENCV_GCC_VERSION} (${CMAKE_OPENCV_GCC_VERSION_NUM})") |
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if(WIN32) |
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execute_process(COMMAND ${CMAKE_CXX_COMPILER} -dumpmachine |
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OUTPUT_VARIABLE CMAKE_OPENCV_GCC_TARGET_MACHINE |
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OUTPUT_STRIP_TRAILING_WHITESPACE) |
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if(CMAKE_OPENCV_GCC_TARGET_MACHINE MATCHES "amd64|x86_64|AMD64") |
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set(MINGW64 1) |
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endif() |
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endif() |
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endif() |
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if(MSVC64 OR MINGW64) |
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set(X86_64 1) |
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elseif(MINGW OR (MSVC AND NOT CMAKE_CROSSCOMPILING)) |
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set(X86 1) |
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") |
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set(X86_64 1) |
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686.*|i386.*|x86.*|amd64.*|AMD64.*") |
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set(X86 1) |
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elseif (CMAKE_SYSTEM_PROCESSOR MATCHES "arm.*|ARM.*") |
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set(ARM 1) |
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endif()
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