title: PCL (point cloud library) 1.7 on Ubuntu 16.04 LTS build error
body: <p>I updated Ubuntu version from 14.04 lts to 16.04 lts 
  and got problems when building projects that utilizes point cloud library.
  (It used to work well on Ubuntu 14.04 and I build my projects with qtcreator)</p>
  
  <p>The warning messages I have are :</p>
  
  <blockquote>
    <p>warning: libboost_system.so.1.54.0, needed by /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libpcl_common.so, may conflict with libboost_system.so.1.58.0</p>
    
    <p>warning: libboost_thread.so.1.54.0, needed by /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libpcl_common.so, may conflict with libboost_thread.so.1.58.0</p>
    
    <p>warning: libboost_filesystem.so.1.54.0, needed by /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libpcl_io.so, may conflict with libboost_filesystem.so.1.58.0</p>
    
    <p>warning: libboost_iostreams.so.1.54.0, needed by /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libpcl_io.so, may conflict with libboost_iostreams.so.1.58.0</p>
    
    <p>warning: libboost_chrono.so.1.54.0, needed by /usr/lib/gcc/x86_64-linux-gnu/5/../../../../lib/libpcl_io.so, may conflict with libboost_chrono.so.1.58.0</p>
  </blockquote>
  
  <p>and the errors are :</p>
  
  <blockquote>
    <p>~/main.cpp:-1: error: undefined reference to `pcl::visualization::PCLVisualizer::PCLVisualizer(std::__cxx11::basic_string, std::allocator > const&amp;, bool)'</p>
    
    <p>~/main.cpp:-1: error: undefined reference to `pcl::visualization::PCLVisualizer::setPointCloudRenderingProperties(int, double, std::__cxx11::basic_string, std::allocator > const&amp;, int)'</p>
    
    <p>~/main.cpp:-1: error: undefined reference to `pcl::visualization::PCLVisualizer::setPointCloudRenderingProperties(int, double, std::__cxx11::basic_string, std::allocator > const&amp;, int)'</p>
    
    <p>~/build-Desktop-Default/CMakeFiles/project_name.dir/main.cpp.o:-1: In function `pcl::search::OrganizedNeighbor::OrganizedNeighbor(bool, float, unsigned int)':</p>
    
    <p>~/main.cpp:-1: error: undefined reference to `pcl::search::Search::Search(std::__cxx11::basic_string, std::allocator > const&amp;, bool)'</p>
    
    <p>~/build-Desktop-Default/CMakeFiles/project_name.dir/main.cpp.o:-1: In function `pcl::search::OrganizedNeighbor::OrganizedNeighbor(bool, float, unsigned int)':</p>
    
    <p>~/build-Desktop-Default/CMakeFiles/project_name.dir/main.cpp.o:-1: In function `pcl::search::OrganizedNeighbor::OrganizedNeighbor(bool, float, unsigned int)':</p>
  </blockquote>
  
  <p>I can see there's conflict between <code>libboost_system.so.1.54.0</code> and <code>libboost_system.so.1.58.0</code> but how can I solve it?</p>