CMake error: unable to read CMakeFiles.o

Usage
1

I am attempting to use OpenCV in Embarcadero C++ Builder 10.3 for the 64-bit platform. I use the RAD Studio command prompt and execute the following command to generate the MakeFiles:

cmake -DCMAKE_C_COMPILER=bcc64.exe -DCMAKE_CXX_COMPILER=bcc64.exe -DCMAKE_CXX_FLAGS=“-Wno-c++11-narrowing” -G “Borland Makefiles” -DCMAKE_BUILD_TYPE=Debug -DBUILD_PERF_TESTS=OFF -DWITH_WEBP=OFF -DWITH_OPENEXR=OFF -DWITH_TIFF=OFF -DBUILD_TIFF=OFF -DBUILD_TESTS=OFF -DWITH_JASPER=OFF -DBUILD_SHARED_LIBS=OFF -DBUILD_PROTOBUF=OFF -DBUILD_opencv_dnn=OFF -DBUILD_IPP=OFF -DWITH_IPP=OFF -DWITH_ADE=OFF -DBUILD_opencv_apps=OFF C:\openCV\opencv-4.7.0

After successfully creating the MakeFiles, I proceeded to run the ‘make install’ command. However, during the linking process of ‘opencv_core.lib’, I encountered the following error:

Error: unable to read ‘CMakeFiles.o’

** error 1 ** deleting lib\opencv_core470.lib

** error 1 ** deleting modules\core\CMakeFiles\opencv_core.dir\all

** error 1 ** deleting all

It is important to note that I do not encounter this error when using the 32-bit compiler, so I am unsure why it is attempting to read ‘CMakeFiles.o’. If anyone has any insights or suggestions on how to resolve this issue, I would greatly appreciate it.

2

If you run with make VERBOSE=1, the failing command should be printed. Can that be provided?

3

When running that command I get the following error list:

[ 16%] Linking CXX static library …..\lib\opencv_core470d.lib
TLIB64 7.0 Copyright (c) 1987-2019 Embarcadero Technologies, Inc.
/p2048 /a “…..\lib\opencv_core470d.lib” @CMakeFiles\opencv_core.dir\objects1.rsp
CMakeFiles/opencv_core.dir/src/algorithm.cpp.obj CMakeFiles/opencv_core.dir/src/alloc.cpp.obj CMakeFiles/opencv_core.dir/src/arithm.cpp.obj CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/array.cpp.obj CMakeFiles/opencv_core.dir/src/async.cpp.obj CMakeFiles/opencv_core.dir/src/batch_distance.cpp.obj CMakeFiles/opencv_core.dir/src/bindings_utils.cpp.obj CMakeFiles/opencv_core.dir/src/buffer_area.cpp.obj CMakeFiles/opencv_core.dir/src/channels.cpp.obj CMakeFiles/opencv_core.dir/src/check.cpp.obj CMakeFiles/opencv_core.dir/src/command_line_parser.cpp.obj CMakeFiles/opencv_core.dir/src/conjugate_gradient.cpp.obj CMakeFiles/opencv_core.dir/src/convert.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/convert_c.cpp.obj CMakeFiles/opencv_core.dir/src/convert_scale.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/copy.cpp.obj CMakeFiles/opencv_core.dir/src/count_non_zero.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/cuda_gpu_mat.cpp.obj CMakeFiles/opencv_core.dir/src/cuda_gpu_mat_nd.cpp.obj CMakeFiles/opencv_core.dir/src/cuda_host_mem.cpp.obj CMakeFiles/opencv_core.dir/src/cuda_info.cpp.obj CMakeFiles/opencv_core.dir/src/cuda_stream.cpp.obj CMakeFiles/opencv_core.dir/src/datastructs.cpp.obj CMakeFiles/opencv_core.dir/src/directx.cpp.obj CMakeFiles/opencv_core.dir/src/downhill_simplex.cpp.obj CMakeFiles/opencv_core.dir/src/dxt.cpp.obj CMakeFiles/opencv_core.dir/src/gl_core_3_1.cpp.obj CMakeFiles/opencv_core.dir/src/glob.cpp.obj CMakeFiles/opencv_core.dir/src/hal_internal.cpp.obj CMakeFiles/opencv_core.dir/src/kmeanWarning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘b’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘b’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘b’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘c’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: duplicate file ‘pencv_core’ in list, not added!
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘rc’ in list, not added!
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘g’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘g’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘h’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘k’ ignored
s.cpp.obj CMakeFiles/opencv_core.dir/src/lapack.cpp.obj CMakeFiles/opencv_core.dir/src/lda.cpp.obj CMakeFiles/opencv_core.dir/src/logger.cpp.obj CMakeFiles/opencv_core.dir/src/lpsolver.cpp.obj CMakeFiles/opencv_core.dir/src/lut.cpp.obj CMakeFiles/opencv_core.dir/src/mathfuncs.cpp.obj CMakeFiles/opencv_core.dir/src/mathfuncs_core.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/matmul.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/matrix.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_c.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_decomp.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_expressions.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_iterator.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_operations.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_sparse.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_transform.cpp.obj CMakeFiles/opencv_core.dir/src/matrix_wrap.cpp.obj CMakeFiles/opencv_core.dir/src/mean.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/merge.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/minmax.cpp.obj CMakeFiles/opencv_core.dir/src/norm.cpp.obj CMakeFiles/opencv_core.dir/src/ocl.cpp.obj CMakeFiles/opencv_core.dir/src/opencl/runtime/opencl_clblas.cpp.obj CMakeFiles/opencv_core.dir/src/opencl/runtime/opencl_clfft.cpp.obj CMakeFiles/opencv_core.dir/src/opencl/runtime/opencl_core.cpp.obj CMakeFiles/opencv_core.dir/src/opengl.cpp.obj CMakeFiles/opencv_core.dir/src/out.cpp.obj CMakeFiles/opencv_core.dir/src/ovx.cpp.obj CMakeFiles/opencv_core.dir/src/parallel.cpp.obj CMakeFiles/opencv_core.dir/src/parallel/parallel.cpp.obj CMakeFilesWarning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘m’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘n’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: invalid page size value ignored
/opencv_core.dir/src/parallel/parallel_openmp.cpp.obj CMakeFiles/opencv_core.dir/src/parallel/parallel_tbb.cpp.obj CMakeFiles/opencv_core.dir/src/parallel_impl.cpp.obj CMakeFiles/opencv_core.dir/src/pca.cpp.obj CMakeFiles/opencv_core.dir/src/persistence.cpp.obj CMakeFiles/opencv_core.dir/src/persistence_base64_encoding.cpp.obj CMakeFiles/opencv_core.dir/src/persistence_json.cpp.obj CMakeFiles/opencv_core.dir/src/persistence_types.cpp.obj CMakeFiles/opencv_core.dir/src/persistence_xml.cpp.obj CMakeFiles/opencv_core.dir/src/persistence_yml.cpp.obj CMakeFiles/opencv_core.dir/src/rand.cpp.obj CMakeFiles/opencv_core.dir/src/softfloat.cpp.obj CMakeFiles/opencv_core.dir/src/split.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/stat.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/stat_c.cpp.obj CMakeFiles/opencv_core.dir/src/stl.cpp.obj CMakeFiles/opencv_core.dir/src/sum.dispatch.cpp.obj CMakeFiles/opencv_core.dir/src/system.cpp.obj CMakeFiles/opencv_core.dir/src/tables.cpp.obj CMakeFiles/opencv_core.dir/src/trace.cpp.obj CMakeFiles/opencv_core.dir/src/types.cpp.obj CMakeFiles/opencv_core.dir/src/umatrix.cpp.obj CMakeFiles/opencv_core.dir/src/utils/datafile.cpp.obj CMakeFiles/opencv_core.dir/src/utils/filesystem.cpp.obj CMakeFiles/opencv_core.dir/src/utils/logtagconfigparser.cpp.obj CMakeFiles/opencv_core.dir/src/utils/logtagmanager.cpp.obj CMakeFiles/opencv_core.dir/src/utils/samples.cpp.obj CMakeFiles/opencv_core.dir/src/va_intel.cpp.obj CMakeFiles/opencv_core.dir/opencl_kernels_core.cpp.obj
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: invalid page size value ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘t’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘t’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘t’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘f’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: unknown command line switch ‘s’ ignored
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Warning: unknown command line switch ‘v’ ignored
Warning: unknown command line switch ‘o’ ignored
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Error: unable to read ‘CMakeFiles.o’

** error 1 ** deleting lib\opencv_core470d.lib

** error 1 ** deleting modules\core\CMakeFiles\opencv_core.dir\all

** error 1 ** deleting all

Is that what you wanted me to provide?

4

Yes, thanks. It looks like the / in the paths are being interpreted as switches:

CMakeFiles/opencv_core.dir/src/algorithm.cpp.obj

seems to align with:

Warning: unknown command line switch ‘o’ ignored
Warning: unknown command line switch ‘s’ ignored
Warning: duplicate file ‘CMakeFiles’ in list, not added!

I suspect that CMake needs to learn that this compiler wants \ separators on Windows.