C++ pcl欧氏聚类提取中的链接错误

在尝试运行pcl提供的示例时，我遇到了最奇怪的链接错误：

我已将错误缩小到以下行：

ec.extract (cluster_indices);

当我删除这一行时，没有链接错误，否则我会得到一堆如下所示：

/usr/local/lib/libpcl_search.a(organized.cpp.o): In function `pcl::search::OrganizedNeighbor<pcl::PointXYZL>::computeCameraMatrix(Eigen::Matrix<float, 3, 3, 0, 3, 3>&) const':
organized.cpp:(.text._ZNK3pcl6search17OrganizedNeighborINS_9PointXYZLEE19computeCameraMatrixERN5Eigen6MatrixIfLi3ELi3ELi0ELi3ELi3EEE
[_ZNK3pcl6search17OrganizedNeighborINS_9PointXYZLEE19computeCameraMatrixERN5Eigen6MatrixIfLi3ELi3ELi0ELi3ELi3EEE]+0xc): 
undefined reference to `pcl::getCameraMatrixFromProjectionMatrix(Eigen::Matrix<float, 3, 4, 1, 3, 4> const&, Eigen::Matrix<float, 3, 3, 0, 3, 3>&)'

_ZNK3pcl6search17OrganizedNeighborINS_11PointNormalEE19computeCameraMatrixERN5Eigen6MatrixIfLi3ELi3ELi0ELi3ELi3EEE

cmake_minimum_required(VERSION 2.8 FATAL_ERROR)

set (CMAKE_C_COMPILER /usr/qnx650/host/qnx6/x86/usr/bin/gcc)
set (CMAKE_CXX_COMPILER /usr/qnx650/host/qnx6/x86/usr/bin/g++)

project(cluster_extraction)

find_package(PCL 1.7 REQUIRED)

include_directories(/usr/local/include /usr/local/include/pcl-1.7)
link_directories(/usr/local/lib)
add_definitions(${PCL_DEFINITIONS})

add_executable (cluster_extraction testEuclideanclustering.cpp)
target_link_libraries (cluster_extraction ${PCL_LIBRARIES})

---

哪些接近所需的include函数，但似乎PointXYZ实现不存在？我怎样才能知道情况是否如此以及原因呢？

看来cmake正在与依赖性作斗争。我确信这是因为我们被迫将pcl包括在内。我们正在使用一个名为QNX的操作系统，这意味着CMakeLists.txt需要如下所示：

/usr/local/lib/libpcl_search.a(organized.cpp.o): In function `pcl::search::OrganizedNeighbor<pcl::PointXYZL>::computeCameraMatrix(Eigen::Matrix<float, 3, 3, 0, 3, 3>&) const':
organized.cpp:(.text._ZNK3pcl6search17OrganizedNeighborINS_9PointXYZLEE19computeCameraMatrixERN5Eigen6MatrixIfLi3ELi3ELi0ELi3ELi3EEE
[_ZNK3pcl6search17OrganizedNeighborINS_9PointXYZLEE19computeCameraMatrixERN5Eigen6MatrixIfLi3ELi3ELi0ELi3ELi3EEE]+0xc): 
undefined reference to `pcl::getCameraMatrixFromProjectionMatrix(Eigen::Matrix<float, 3, 4, 1, 3, 4> const&, Eigen::Matrix<float, 3, 3, 0, 3, 3>&)'

_ZNK3pcl6search17OrganizedNeighborINS_11PointNormalEE19computeCameraMatrixERN5Eigen6MatrixIfLi3ELi3ELi0ELi3ELi3EEE

cmake_minimum_required(VERSION 2.8 FATAL_ERROR)

set (CMAKE_C_COMPILER /usr/qnx650/host/qnx6/x86/usr/bin/gcc)
set (CMAKE_CXX_COMPILER /usr/qnx650/host/qnx6/x86/usr/bin/g++)

project(cluster_extraction)

find_package(PCL 1.7 REQUIRED)

include_directories(/usr/local/include /usr/local/include/pcl-1.7)
link_directories(/usr/local/lib)
add_definitions(${PCL_DEFINITIONS})

add_executable (cluster_extraction testEuclideanclustering.cpp)
target_link_libraries (cluster_extraction ${PCL_LIBRARIES})

如果我在${pcl_LIBRARIES}链接之后添加到pcl_search的直接链接，那么它将编译。似乎我们需要为pcl制定自己的cmake规则