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使用MVSC2019编译64位版本的OpenCV源代码出现了问题。

c++opencvcmake
3

我正在使用MSVC编译64位版本的openCV以及Qt的Windows应用。

在首次配置时，我遇到了一系列错误，类似于：

Check size of size_t
CMake Error at C:/Program Files/CMake/share/cmake-3.25/Modules/CheckTypeSize.cmake:147 (try_compile):
  Cannot copy output executable

    ''

  to destination specified by COPY_FILE:

    'C:/Users/alejandro/Downloads/opencv/build/CMakeFiles/CheckTypeSize/SIZEOF_SIZE_T.bin'

  Recorded try_compile output location doesn't exist:

    C:/Users/alejandro/Downloads/opencv/build/CMakeFiles/CMakeScratch/TryCompile-jglvcw/Debug/cmTC_e9d0b.exe

Call Stack (most recent call first):
  C:/Program Files/CMake/share/cmake-3.25/Modules/CheckTypeSize.cmake:277 (__check_type_size_impl)
  3rdparty/libjpeg-turbo/CMakeLists.txt:25 (check_type_size)

有人知道我如何解决这个问题吗？

编辑1

我发现另一个与OpenMP相关的重要错误是这样的：

CMake Error at C:/Program Files/CMake/share/cmake-3.25/Modules/FindOpenMP.cmake:420 (try_compile):
  Cannot copy output executable

    ''

  to destination specified by COPY_FILE:

    'C:/Users/alejandro/Downloads/opencv/build/CMakeFiles/FindOpenMP/ompver_C.bin'

  Recorded try_compile output location doesn't exist:

    C:/Users/alejandro/Downloads/opencv/build/CMakeFiles/CMakeScratch/TryCompile-q8quzk/Debug/cmTC_e2ecd.exe

Call Stack (most recent call first):
  C:/Program Files/CMake/share/cmake-3.25/Modules/FindOpenMP.cmake:560 (_OPENMP_GET_SPEC_DATE)
  C:/Program Files/CMake/share/cmake-3.25/Modules/FindBLAS.cmake:768 (find_package)
  C:/Program Files/CMake/share/cmake-3.25/Modules/FindLAPACK.cmake:247 (find_package)
  C:/Program Files/CMake/share/cmake-3.25/Modules/FindLAPACK.cmake:283 (_lapack_find_dependency)
  cmake/OpenCVFindLAPACK.cmake:176 (find_package)
  CMakeLists.txt:733 (include)
1个回答
6

我也遇到了同样的问题，这是因为CMake-3.25.0-rc2的原因，将其更改为3.24.2即可解决问题。

有人对此了解更多吗？我在使用VS2017和cmake 3.25.0构建OpenCV 4.5.0时遇到了非常类似的问题。问题似乎是由于cmake的新版本引起的。 - johnfo
好的，看起来这是一个问题 https://github.com/opencv/opencv/issues/22784 ，解决方案是等待 cmake 3.25.1。 - johnfo
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