title: Cmake unable to find Boost
body: <p>I tried to make PCL example project.<a href="http://pointclouds.org/documentation/tutorials/cloud_viewer.php#cloud-viewer" rel="nofollow noreferrer">here</a> i used cmake to build. But cmake gives an Error as below </p>
  
  <pre><code>Could NOT find Boost
  CMake Error at C:/Program Files/PCL 1.5.1/cmake/PCLConfig.cmake:38 (message):
    common is required but boost was not found
  Call Stack (most recent call first):
    C:/Program Files/PCL 1.5.1/cmake/PCLConfig.cmake:346 (pcl_report_not_found)
    C:/Program Files/PCL 1.5.1/cmake/PCLConfig.cmake:491 (find_external_library)
    CMakeLists.txt:5 (find_package)
  </code></pre>
  
  <p>I have Boost in <strong>C:\Program Files\PCL 1.5.1\3rdParty\Boost</strong> , since cmake couldn't find in default location i think it might throw an error. To get rid of that error i add </p>
  
  <pre><code>SET(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} "C:/Program Files/PCL 1.5.1/3rdParty/Boost/include")
  SET(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} "C:/Program Files/PCL 1.5.1/3rdParty/Boost/lib")
  </code></pre>
  
  <p>before the <code>macro(find_boost)</code> But also throw the same Error. please find my PCLConfig.cmake below (i have mentioned the code snippet that relates to boost)</p>
  
  <pre><code>SET(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} "C:/Program Files/PCL 1.5.1/3rdParty/Boost/include")
  SET(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} "C:/Program Files/PCL 1.5.1/3rdParty/Boost/lib")
      macro(find_boost)
        if(PCL_ALL_IN_ONE_INSTALLER)
          set(BOOST_ROOT "${PCL_ROOT}/3rdParty/Boost")
        elseif(NOT BOOST_INCLUDEDIR)
          set(BOOST_INCLUDEDIR "d:/git/SuperBuild/build/CMakeExternal/Install/Boost/include")
        endif(PCL_ALL_IN_ONE_INSTALLER)
        # use static Boost in Windows
        if(WIN32)
          set(Boost_USE_STATIC_LIBS ON)
          set(Boost_USE_STATIC ON)
        endif(WIN32)
        if(${CMAKE_VERSION} VERSION_LESS 2.8.5)
          SET(Boost_ADDITIONAL_VERSIONS "1.43" "1.43.0" "1.44" "1.44.0" "1.45" "1.45.0" "1.46.1" "1.46.0" "1.46" "1.47" "1.47.0")
        else(${CMAKE_VERSION} VERSION_LESS 2.8.5)
          SET(Boost_ADDITIONAL_VERSIONS "1.47" "1.47.0")
        endif(${CMAKE_VERSION} VERSION_LESS 2.8.5)
        # Disable the config mode of find_package(Boost)
        set(Boost_NO_BOOST_CMAKE ON)
        find_package(Boost 1.40.0 ${QUIET_} COMPONENTS system filesystem thread date_time iostreams)
        set(BOOST_FOUND ${Boost_FOUND})
        set(BOOST_INCLUDE_DIRS "${Boost_INCLUDE_DIR}")
        set(BOOST_LIBRARY_DIRS "${Boost_LIBRARY_DIRS}")
        set(BOOST_LIBRARIES ${Boost_LIBRARIES})
        if(WIN32)
          set(BOOST_DEFINITIONS ${BOOST_DEFINITIONS} -DBOOST_ALL_NO_LIB)
        endif(WIN32)
      endmacro(find_boost)
  </code></pre>
  
  <p>Any help is appreciated to this matter.</p>