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License: MIT License
Use Open3D as a CMake external project
License: MIT License
I am using your CMakeLists file for External Project but I get error attached here:
CMakeError.log
CMakeOutput.log
Code:
git clone https://github.com/intel-isl/open3d-cmake-external-project.git
cd open3d-cmake-external-project
mkdir build
cd build
cmake ..
cmake --build . --config Release --parallel 12
Release\Draw
error happens after build
cmake --build . --config Release --parallel 12
I tried to perform the commands:
git clone https://github.com/intel-isl/open3d-cmake-external-project.git
cd open3d-cmake-external-project
mkdir build
cd build
cmake ..
make -j 12
The building process has the error:
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Eigen.cpp:(.text._ZN5Eigen8internal16parallelize_gemmILb1ENS0_12gemm_functorIdlNS0_29general_matrix_matrix_productIldLi0ELb0EdLi0ELb0ELi0ELi1EEENS_3RefINS_6MatrixIdLin1ELin1ELi0ELin1ELin1EEELi0ENS_11OuterStrideILin1EEEEESA_SA_NS0_19gemm_blocking_spaceILi0EddLin1ELin1ELin1ELi1ELb0EEEEElEEvRKT0_T1_SH_SH_b._omp_fn.0[_ZN5Eigen8internal16parallelize_gemmILb1ENS0_12gemm_functorIdlNS0_29general_matrix_matrix_productIldLi0ELb0EdLi0ELb0ELi0ELi1EEENS_3RefINS_6MatrixIdLin1ELin1ELi0ELin1ELin1EEELi0ENS_11OuterStrideILin1EEEEESA_SA_NS0_19gemm_blocking_spaceILi0EddLin1ELin1ELin1ELi1ELb0EEEEElEEvRKT0_T1_SH_SH_b]+0x1f): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::RemoveRadiusOutliers(unsigned long, double, bool) const [clone ._omp_fn.1]':
PointCloud.cpp:(.text+0x28f): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: PointCloud.cpp:(.text+0x296): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::RemoveStatisticalOutliers(unsigned long, double, bool) const [clone ._omp_fn.2]':
PointCloud.cpp:(.text+0x44f): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: PointCloud.cpp:(.text+0x456): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::ComputeMahalanobisDistance() const [clone ._omp_fn.4]':
PointCloud.cpp:(.text+0x815): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: PointCloud.cpp:(.text+0x820): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::ComputeNearestNeighborDistance() const [clone ._omp_fn.5]':
PointCloud.cpp:(.text+0xa0b): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: PointCloud.cpp:(.text+0xa12): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::EstimatePerPointCovariances(open3d::geometry::PointCloud const&, open3d::geometry::KDTreeSearchParam const&) [clone ._omp_fn.3]':
PointCloud.cpp:(.text+0xcdc): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: PointCloud.cpp:(.text+0xce7): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::ComputePointCloudDistance(open3d::geometry::PointCloud const&) [clone ._omp_fn.0]':
PointCloud.cpp:(.text+0x10eb): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: PointCloud.cpp:(.text+0x10f2): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::ComputePointCloudDistance(open3d::geometry::PointCloud const&)':
PointCloud.cpp:(.text+0x14fc): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::ComputeMahalanobisDistance() const':
PointCloud.cpp:(.text+0x1b96): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::ComputeNearestNeighborDistance() const':
PointCloud.cpp:(.text+0x1cc2): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::EstimatePerPointCovariances(open3d::geometry::PointCloud const&, open3d::geometry::KDTreeSearchParam const&)':
PointCloud.cpp:(.text+0x243d): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o): in function `open3d::geometry::PointCloud::RemoveRadiusOutliers(unsigned long, double, bool) const':
PointCloud.cpp:(.text+0x3bd2): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(PointCloud.cpp.o):PointCloud.cpp:(.text+0x415f): more undefined references to `GOMP_parallel' follow
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(ProgressBar.cpp.o): in function `open3d::utility::OMPProgressBar::operator++()':
ProgressBar.cpp:(.text+0x38a): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: ProgressBar.cpp:(.text+0x391): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::Transpose() const [clone ._omp_fn.2]':
Image.cpp:(.text+0x9e): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Image.cpp:(.text+0xa5): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::FlipVertical() const [clone ._omp_fn.3]':
Image.cpp:(.text+0x1b5): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Image.cpp:(.text+0x1c0): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::FlipHorizontal() const [clone ._omp_fn.4]':
Image.cpp:(.text+0x285): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Image.cpp:(.text+0x28c): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::Downsample() const [clone ._omp_fn.0]':
Image.cpp:(.text+0x5f8): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Image.cpp:(.text+0x5ff): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::CreateDepthBoundaryMask(double, int) const [clone ._omp_fn.6]':
Image.cpp:(.text+0x750): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Image.cpp:(.text+0x758): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::FilterHorizontal(std::vector<double, std::allocator<double> > const&) const [clone ._omp_fn.1]':
Image.cpp:(.text+0x8a9): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Image.cpp:(.text+0x8b1): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::Dilate(int) const [clone ._omp_fn.5]':
Image.cpp:(.text+0xa7d): undefined reference to `omp_get_num_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Image.cpp:(.text+0xa85): undefined reference to `omp_get_thread_num'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::Downsample() const':
Image.cpp:(.text+0xfd9): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::FilterHorizontal(std::vector<double, std::allocator<double> > const&) const':
Image.cpp:(.text+0x124a): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::Transpose() const':
Image.cpp:(.text+0x1444): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::FlipVertical() const':
Image.cpp:(.text+0x1fe0): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o): in function `open3d::geometry::Image::FlipHorizontal() const':
Image.cpp:(.text+0x215e): undefined reference to `GOMP_parallel'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Image.cpp.o):Image.cpp:(.text+0x22c0): more undefined references to `GOMP_parallel' follow
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Qhull.cpp.o): in function `open3d::geometry::Qhull::ComputeDelaunayTetrahedralization(std::vector<Eigen::Matrix<double, 3, 1, 0, 3, 1>, std::allocator<Eigen::Matrix<double, 3, 1, 0, 3, 1> > > const&)':
Qhull.cpp:(.text+0x267): undefined reference to `orgQhull::PointCoordinates::PointCoordinates(int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x2a2): undefined reference to `orgQhull::PointCoordinates::append(int, double const*)'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x2b8): undefined reference to `orgQhull::Qhull::Qhull()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x37a): undefined reference to `orgQhull::Qhull::runQhull(char const*, int, int, double const*, char const*)'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x3ac): undefined reference to `orgQhull::Qhull::facetList() const'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x3b4): undefined reference to `orgQhull::QhullFacetList::count() const'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x528): undefined reference to `orgQhull::QhullFacet::s_empty_facet'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x534): undefined reference to `orgQhull::QhullFacet::s_empty_facet'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x8ea): undefined reference to `orgQhull::Qhull::~Qhull()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x8f6): undefined reference to `orgQhull::PointCoordinates::~PointCoordinates()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x9dc): undefined reference to `orgQhull::QhullFacet::vertices() const'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0xa41): undefined reference to `qh_setendpointer'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0xa6a): undefined reference to `qh_pointid'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0xb33): undefined reference to `orgQhull::QhullVertex::s_empty_vertex'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0xb4f): undefined reference to `orgQhull::QhullVertexSet::~QhullVertexSet()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x103e): undefined reference to `orgQhull::QhullFacet::s_empty_facet'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x118d): undefined reference to `orgQhull::PointCoordinates::~PointCoordinates()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1282): undefined reference to `orgQhull::Qhull::~Qhull()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1296): undefined reference to `orgQhull::QhullVertexSet::~QhullVertexSet()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Qhull.cpp.o): in function `open3d::geometry::Qhull::ComputeConvexHull(std::vector<Eigen::Matrix<double, 3, 1, 0, 3, 1>, std::allocator<Eigen::Matrix<double, 3, 1, 0, 3, 1> > > const&, bool)':
Qhull.cpp:(.text+0x15f8): undefined reference to `orgQhull::PointCoordinates::PointCoordinates(int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x162e): undefined reference to `orgQhull::PointCoordinates::append(int, double const*)'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1643): undefined reference to `orgQhull::Qhull::Qhull()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1748): undefined reference to `orgQhull::Qhull::runQhull(char const*, int, int, double const*, char const*)'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1778): undefined reference to `orgQhull::Qhull::facetList() const'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1780): undefined reference to `orgQhull::QhullFacetList::count() const'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1901): undefined reference to `orgQhull::QhullFacet::s_empty_facet'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x190d): undefined reference to `orgQhull::QhullFacet::s_empty_facet'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1d7e): undefined reference to `orgQhull::Qhull::~Qhull()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1d88): undefined reference to `orgQhull::PointCoordinates::~PointCoordinates()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1e37): undefined reference to `orgQhull::QhullFacet::vertices() const'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1e91): undefined reference to `qh_setendpointer'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x1eb8): undefined reference to `qh_pointid'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x20a3): undefined reference to `orgQhull::QhullVertex::s_empty_vertex'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x20bb): undefined reference to `orgQhull::QhullVertexSet::~QhullVertexSet()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x22dd): undefined reference to `orgQhull::QhullFacet::s_empty_facet'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x237a): undefined reference to `orgQhull::PointCoordinates::~PointCoordinates()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x2419): undefined reference to `orgQhull::Qhull::~Qhull()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: Qhull.cpp:(.text+0x2447): undefined reference to `orgQhull::QhullVertexSet::~QhullVertexSet()'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Parallel.cpp.o): in function `open3d::utility::EstimateMaxThreads()':
Parallel.cpp:(.text+0x171): undefined reference to `omp_get_max_threads'
/usr/lib64/gcc/x86_64-suse-linux/11/../../../../x86_64-suse-linux/bin/ld: /usr/local/lib64/libOpen3D.a(Parallel.cpp.o): in function `open3d::utility::InParallel()':
Parallel.cpp:(.text+0x355): undefined reference to `omp_in_parallel'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/Draw.dir/build.make:97: Draw] Error 1
make[1]: *** [CMakeFiles/Makefile2:111: CMakeFiles/Draw.dir/all] Error 2
make: *** [Makefile:91: all] Error 2
Hello,
Thanks for providing such an easy way to integrate open3D to quickly play with the library.
I've tested the cmake external project but if failed, so meaning while I'm using conventional build from source and then link the library.
I was wondering if you could provide some help to solve my issues with the external cmake.
I'm using Ubuntu 18.04 with GCC compiler suite and Cmake latest version 3.21.2
The following command:
cmake --build /home/ubuntu-bionic/Projects/open3d-cmake-external-project/build --config Debug --target all
Output the error
make[5]: *** No rule to make target 'libpng/lib/libpng16d.a', needed by 'lib/Debug/libOpen3D.so'. Stop
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