findboost.cmake

Gaussian Mixture Algorithm

    # Read the whole file:
    #
    SET(BOOST_VERSION 0)
    SET(BOOST_LIB_VERSION "")
    FILE(READ "${Boost_INCLUDE_DIR}/boost/version.hpp" _boost_VERSION_HPP_CONTENTS)
  
    STRING(REGEX REPLACE ".*#define BOOST_VERSION ([0-9]+).*" "\\1" Boost_VERSION "${_boost_VERSION_HPP_CONTENTS}")
    STRING(REGEX REPLACE ".*#define BOOST_LIB_VERSION \"([0-9_]+)\".*" "\\1" Boost_LIB_VERSION "${_boost_VERSION_HPP_CONTENTS}")
  
    SET(Boost_LIB_VERSION ${Boost_LIB_VERSION} CACHE INTERNAL "The library version string for boost libraries")
    SET(Boost_VERSION ${Boost_VERSION} CACHE INTERNAL "The version number for boost libraries")
    
    IF(NOT "${Boost_VERSION}" STREQUAL "0")
      MATH(EXPR Boost_MAJOR_VERSION "${Boost_VERSION} / 100000")
      MATH(EXPR Boost_MINOR_VERSION "${Boost_VERSION} / 100 % 1000")
      MATH(EXPR Boost_SUBMINOR_VERSION "${Boost_VERSION} % 100")

      set(Boost_ERROR_REASON
          "${Boost_ERROR_REASON}Boost version: ${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}\nBoost include path: ${Boost_INCLUDE_DIR}")
    ENDIF(NOT "${Boost_VERSION}" STREQUAL "0")
  ELSE(Boost_INCLUDE_DIR)
    set(Boost_ERROR_REASON
      "${Boost_ERROR_REASON}Unable to find the Boost header files. Please set BOOST_ROOT to the root directory containing Boost or BOOST_INCLUDEDIR to the directory containing Boost's headers.")
  ENDIF(Boost_INCLUDE_DIR)

  # Setting some more suffixes for the library
  SET (Boost_LIB_PREFIX "")
  IF ( WIN32 AND Boost_USE_STATIC_LIBS )
    SET (Boost_LIB_PREFIX "lib")
  ENDIF ( WIN32 AND Boost_USE_STATIC_LIBS )
  SET (_boost_COMPILER "-gcc")
  IF (MSVC90)
    SET (_boost_COMPILER "-vc90")
  ELSEIF (MSVC80)
    SET (_boost_COMPILER "-vc80")
  ELSEIF (MSVC71)
    SET (_boost_COMPILER "-vc71")
  ENDIF(MSVC90)
  IF (MINGW)
    EXEC_PROGRAM(${CMAKE_CXX_COMPILER}
      ARGS -dumpversion
      OUTPUT_VARIABLE _boost_COMPILER_VERSION
      )
    STRING(REGEX REPLACE "([0-9])\\.([0-9])\\.[0-9]" "\\1\\2"
      _boost_COMPILER_VERSION ${_boost_COMPILER_VERSION})
    SET (_boost_COMPILER "-mgw${_boost_COMPILER_VERSION}")
  ENDIF(MINGW)
  IF (UNIX)
    IF (NOT CMAKE_COMPILER_IS_GNUCC)
      # We assume that we have the Intel compiler.
      SET (_boost_COMPILER "-il")
    ELSE (NOT CMAKE_COMPILER_IS_GNUCC)
      # Determine which version of GCC we have.
      EXEC_PROGRAM(${CMAKE_CXX_COMPILER}
        ARGS -dumpversion
        OUTPUT_VARIABLE _boost_COMPILER_VERSION
        )
      STRING(REGEX REPLACE "([0-9])\\.([0-9])\\.[0-9]" "\\1\\2"
        _boost_COMPILER_VERSION ${_boost_COMPILER_VERSION})
      IF(APPLE)
        IF(Boost_MINOR_VERSION)
          IF(${Boost_MINOR_VERSION} GREATER 35)
            # In Boost 1.36.0 and newer, the mangled compiler name used
            # on Mac OS X/Darwin is "xgcc".
            SET(_boost_COMPILER "-xgcc${_boost_COMPILER_VERSION}")
          ELSE(${Boost_MINOR_VERSION} GREATER 35)
            # In Boost <= 1.35.0, there is no mangled compiler name for
            # the Mac OS X/Darwin version of GCC.
            SET(_boost_COMPILER "")
          ENDIF(${Boost_MINOR_VERSION} GREATER 35)
        ELSE(Boost_MINOR_VERSION)
          # We don't know the Boost version, so assume it's
          # pre-1.36.0.
          SET(_boost_COMPILER "")
        ENDIF(Boost_MINOR_VERSION)
      ELSE()
        SET (_boost_COMPILER "-gcc${_boost_COMPILER_VERSION}")
      ENDIF()
    ENDIF (NOT CMAKE_COMPILER_IS_GNUCC)
  ENDIF(UNIX)

  SET (_boost_MULTITHREADED "-mt")

  IF( NOT Boost_USE_MULTITHREADED )
    SET (_boost_MULTITHREADED "")
  ENDIF( NOT Boost_USE_MULTITHREADED )

  SET( _boost_STATIC_TAG "")
  IF (WIN32)
    IF(MSVC)
      SET (_boost_ABI_TAG "g")
    ENDIF(MSVC)
    IF( Boost_USE_STATIC_LIBS )
      SET( _boost_STATIC_TAG "-s")
    ENDIF( Boost_USE_STATIC_LIBS )
  ENDIF(WIN32)
  SET (_boost_ABI_TAG "${_boost_ABI_TAG}d")

  # ------------------------------------------------------------------------
  #  Begin finding boost libraries
  # ------------------------------------------------------------------------
  FOREACH(COMPONENT ${Boost_FIND_COMPONENTS})
    STRING(TOUPPER ${COMPONENT} UPPERCOMPONENT)
    SET( Boost_${UPPERCOMPONENT}_LIBRARY "Boost_${UPPERCOMPONENT}_LIBRARY-NOTFOUND" )
    SET( Boost_${UPPERCOMPONENT}_LIBRARY_RELEASE "Boost_${UPPERCOMPONENT}_LIBRARY_RELEASE-NOTFOUND" )
    SET( Boost_${UPPERCOMPONENT}_LIBRARY_DEBUG "Boost_${UPPERCOMPONENT}_LIBRARY_DEBUG-NOTFOUND")

    # Support preference of static libs by adjusting CMAKE_FIND_LIBRARY_SUFFIXES
    IF( Boost_USE_STATIC_LIBS )
      SET( _boost_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
      IF(WIN32)
        SET(CMAKE_FIND_LIBRARY_SUFFIXES .lib .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
      ELSE(WIN32)
        SET(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
      ENDIF(WIN32)
    ENDIF( Boost_USE_STATIC_LIBS )

    FIND_LIBRARY(Boost_${UPPERCOMPONENT}_LIBRARY_RELEASE
        NAMES  ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_COMPILER}${_boost_MULTITHREADED}-${Boost_LIB_VERSION}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_COMPILER}${_boost_MULTITHREADED}${_boost_STATIC_TAG}-${Boost_LIB_VERSION}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}${_boost_STATIC_TAG}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}
        HINTS  ${_boost_LIBRARIES_SEARCH_DIRS}
    )

    FIND_LIBRARY(Boost_${UPPERCOMPONENT}_LIBRARY_DEBUG
        NAMES  ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_COMPILER}${_boost_MULTITHREADED}-${_boost_ABI_TAG}-${Boost_LIB_VERSION}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_COMPILER}${_boost_MULTITHREADED}${_boost_STATIC_TAG}${_boost_ABI_TAG}-${Boost_LIB_VERSION}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}-${_boost_ABI_TAG}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}${_boost_STATIC_TAG}${_boost_ABI_TAG}
               ${Boost_LIB_PREFIX}boost_${COMPONENT}-${_boost_ABI_TAG}
        HINTS  ${_boost_LIBRARIES_SEARCH_DIRS}
    )

    _Boost_ADJUST_LIB_VARS(${UPPERCOMPONENT})
    IF( Boost_USE_STATIC_LIBS )
      SET(CMAKE_FIND_LIBRARY_SUFFIXES ${_boost_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
    ENDIF( Boost_USE_STATIC_LIBS )
  ENDFOREACH(COMPONENT)
  # ------------------------------------------------------------------------
  #  End finding boost libraries
  # ------------------------------------------------------------------------

  SET(Boost_INCLUDE_DIRS
    ${Boost_INCLUDE_DIR}
  )

  SET(Boost_FOUND FALSE)
  IF(Boost_INCLUDE_DIR)
    SET( Boost_FOUND TRUE )

    # Check the version of Boost against the requested version.
    if (Boost_FIND_VERSION AND NOT Boost_FIND_VERSION_MINOR)
      message(SEND_ERROR "When requesting a specific version of Boost, you must provide at least the major and minor version numbers, e.g., 1.34")
    endif (Boost_FIND_VERSION AND NOT Boost_FIND_VERSION_MINOR)
    if(Boost_MAJOR_VERSION LESS "${Boost_FIND_VERSION_MAJOR}" )
      set( Boost_FOUND FALSE )
      set(_Boost_VERSION_AGE "old")
    elseif(Boost_MAJOR_VERSION EQUAL "${Boost_FIND_VERSION_MAJOR}" )
      if(Boost_MINOR_VERSION LESS "${Boost_FIND_VERSION_MINOR}" )
        set( Boost_FOUND FALSE )
        set(_Boost_VERSION_AGE "old")
      elseif(Boost_MINOR_VERSION EQUAL "${Boost_FIND_VERSION_MINOR}" )
        if( Boost_FIND_VERSION_PATCH AND Boost_SUBMINOR_VERSION LESS "${Boost_FIND_VERSION_PATCH}" )
          set( Boost_FOUND FALSE )
          set(_Boost_VERSION_AGE "old")
        endif( Boost_FIND_VERSION_PATCH AND Boost_SUBMINOR_VERSION LESS "${Boost_FIND_VERSION_PATCH}" )
      endif( Boost_MINOR_VERSION LESS "${Boost_FIND_VERSION_MINOR}" )
    endif( Boost_MAJOR_VERSION LESS "${Boost_FIND_VERSION_MAJOR}" )

    if (Boost_FOUND AND Boost_FIND_VERSION_EXACT)
      # If the user requested an exact version of Boost, check
      # that. We already know that the Boost version we have is >= the
      # requested version.
      set(_Boost_VERSION_AGE "new")

      # If the user didn't specify a patchlevel, it's 0.
      if (NOT Boost_FIND_VERSION_PATCH)
        set(Boost_FIND_VERSION_PATCH 0)
      endif (NOT Boost_FIND_VERSION_PATCH)
      
      # We'll set Boost_FOUND true again if we have an exact version match.
      set(Boost_FOUND FALSE)
      if(Boost_MAJOR_VERSION EQUAL "${Boost_FIND_VERSION_MAJOR}" )
        if(Boost_MINOR_VERSION EQUAL "${Boost_FIND_VERSION_MINOR}" )
          if(Boost_SUBMINOR_VERSION EQUAL "${Boost_FIND_VERSION_PATCH}" )
            set( Boost_FOUND TRUE )
          endif(Boost_SUBMINOR_VERSION EQUAL "${Boost_FIND_VERSION_PATCH}" )
        endif( Boost_MINOR_VERSION EQUAL "${Boost_FIND_VERSION_MINOR}" )
      endif( Boost_MAJOR_VERSION EQUAL "${Boost_FIND_VERSION_MAJOR}" )
    endif (Boost_FOUND AND Boost_FIND_VERSION_EXACT)

    if(NOT Boost_FOUND)
      # State that we found a version of Boost that is too new or too old.
      set(Boost_ERROR_REASON
        "${Boost_ERROR_REASON}\nDetected version of Boost is too ${_Boost_VERSION_AGE}. Requested version was ${Boost_FIND_VERSION_MAJOR}.${Boost_FIND_VERSION_MINOR}")
      if (Boost_FIND_VERSION_PATCH)
        set(Boost_ERROR_REASON 
          "${Boost_ERROR_REASON}.${Boost_FIND_VERSION_PATCH}")
      endif (Boost_FIND_VERSION_PATCH)
      if (NOT Boost_FIND_VERSION_EXACT)
        set(Boost_ERROR_REASON "${Boost_ERROR_REASON} (or newer)")
      endif (NOT Boost_FIND_VERSION_EXACT)
      set(Boost_ERROR_REASON "${Boost_ERROR_REASON}.")
    endif (NOT Boost_FOUND)

    if (Boost_FOUND)
      set(_boost_CHECKED_COMPONENT FALSE)
      set(_Boost_MISSING_COMPONENTS)
      foreach(COMPONENT ${Boost_FIND_COMPONENTS})
        string(TOUPPER ${COMPONENT} COMPONENT)
        set(_boost_CHECKED_COMPONENT TRUE)
        if(NOT Boost_${COMPONENT}_FOUND)
          string(TOLOWER ${COMPONENT} COMPONENT)
          list(APPEND _Boost_MISSING_COMPONENTS ${COMPONENT})
          set( Boost_FOUND FALSE)
        endif(NOT Boost_${COMPONENT}_FOUND)
      endforeach(COMPONENT)
    endif (Boost_FOUND)

    if (_Boost_MISSING_COMPONENTS)
      # We were unable to find some libraries, so generate a sensible
      # error message that lists the libraries we were unable to find.
      set(Boost_ERROR_REASON
        "${Boost_ERROR_REASON}\nThe following Boost libraries could not be found:\n")
      foreach(COMPONENT ${_Boost_MISSING_COMPONENTS})
        set(Boost_ERROR_REASON
          "${Boost_ERROR_REASON}        boost_${COMPONENT}\n")
      endforeach(COMPONENT)

      list(LENGTH Boost_FIND_COMPONENTS Boost_NUM_COMPONENTS_WANTED)
      list(LENGTH _Boost_MISSING_COMPONENTS Boost_NUM_MISSING_COMPONENTS)
      if (${Boost_NUM_COMPONENTS_WANTED} EQUAL ${Boost_NUM_MISSING_COMPONENTS})
        set(Boost_ERROR_REASON
          "${Boost_ERROR_REASON}No Boost libraries were found. You may need to set Boost_LIBRARYDIR to the directory containing Boost libraries or BOOST_ROOT to the location of Boost.")
      else (${Boost_NUM_COMPONENTS_WANTED} EQUAL ${Boost_NUM_MISSING_COMPONENTS})
        set(Boost_ERROR_REASON
          "${Boost_ERROR_REASON}Some (but not all) of the required Boost libraries were found. You may need to install these additional Boost libraries. Alternatively, set Boost_LIBRARYDIR to the directory containing Boost libraries or BOOST_ROOT to the location of Boost.")
      endif (${Boost_NUM_COMPONENTS_WANTED} EQUAL ${Boost_NUM_MISSING_COMPONENTS})
    endif (_Boost_MISSING_COMPONENTS)

    IF( NOT Boost_LIBRARY_DIRS AND NOT _boost_CHECKED_COMPONENT )
      # Compatibility Code for backwards compatibility with CMake
      # 2.4's FindBoost module.

      # Look for the boost library path.
      # Note that the user may not have installed any libraries
      # so it is quite possible the Boost_LIBRARY_PATH may not exist.
      SET(_boost_LIB_DIR ${Boost_INCLUDE_DIR})
    
      IF("${_boost_LIB_DIR}" MATCHES "boost-[0-9]+")
        GET_FILENAME_COMPONENT(_boost_LIB_DIR ${_boost_LIB_DIR} PATH)
      ENDIF ("${_boost_LIB_DIR}" MATCHES "boost-[0-9]+")
    
      IF("${_boost_LIB_DIR}" MATCHES "/include$")
        # Strip off the trailing "/include" in the path.
        GET_FILENAME_COMPONENT(_boost_LIB_DIR ${_boost_LIB_DIR} PATH)
      ENDIF("${_boost_LIB_DIR}" MATCHES "/include$")
    
      IF(EXISTS "${_boost_LIB_DIR}/lib")
        SET (_boost_LIB_DIR ${_boost_LIB_DIR}/lib)
      ELSE(EXISTS "${_boost_LIB_DIR}/lib")
        IF(EXISTS "${_boost_LIB_DIR}/stage/lib")
          SET(_boost_LIB_DIR ${_boost_LIB_DIR}/stage/lib)
        ELSE(EXISTS "${_boost_LIB_DIR}/stage/lib")
          SET(_boost_LIB_DIR "")
        ENDIF(EXISTS "${_boost_LIB_DIR}/stage/lib")
      ENDIF(EXISTS "${_boost_LIB_DIR}/lib")
    
      IF(_boost_LIB_DIR AND EXISTS "${_boost_LIB_DIR}")
        SET(Boost_LIBRARY_DIRS ${_boost_LIB_DIR} CACHE FILEPATH "Boost library directory")
      ENDIF(_boost_LIB_DIR AND EXISTS "${_boost_LIB_DIR}")

    ENDIF( NOT Boost_LIBRARY_DIRS AND NOT _boost_CHECKED_COMPONENT )

  ELSE(Boost_INCLUDE_DIR)
    SET( Boost_FOUND FALSE)
  ENDIF(Boost_INCLUDE_DIR)

  IF (Boost_FOUND)
      IF (NOT Boost_FIND_QUIETLY)
        MESSAGE(STATUS "Boost version: ${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}")
      ENDIF(NOT Boost_FIND_QUIETLY)
      IF (NOT Boost_FIND_QUIETLY)
        MESSAGE(STATUS "Found the following Boost libraries:")
      ENDIF(NOT Boost_FIND_QUIETLY)
      FOREACH ( COMPONENT  ${Boost_FIND_COMPONENTS} )
        STRING( TOUPPER ${COMPONENT} UPPERCOMPONENT )
        IF ( Boost_${UPPERCOMPONENT}_FOUND )
          IF (NOT Boost_FIND_QUIETLY)
            MESSAGE (STATUS "  ${COMPONENT}")
          ENDIF(NOT Boost_FIND_QUIETLY)
          SET(Boost_LIBRARIES ${Boost_LIBRARIES} ${Boost_${UPPERCOMPONENT}_LIBRARY})
        ENDIF ( Boost_${UPPERCOMPONENT}_FOUND )
      ENDFOREACH(COMPONENT)
  ELSE (Boost_FOUND)
      IF (Boost_FIND_REQUIRED)
        message(SEND_ERROR "Unable to find the requested Boost libraries.\n${Boost_ERROR_REASON}")
      ENDIF(Boost_FIND_REQUIRED)
  ENDIF(Boost_FOUND)

  # Under Windows, automatic linking is performed, so no need to specify the libraries.
  IF (WIN32)
    IF (NOT MINGW)
      SET(Boost_LIBRARIES "")
    ENDIF (NOT MINGW)
  ENDIF(WIN32)

  # show the Boost_INCLUDE_DIRS AND Boost_LIBRARIES variables only in the advanced view
  MARK_AS_ADVANCED(Boost_INCLUDE_DIR
      Boost_INCLUDE_DIRS
      Boost_LIBRARY_DIRS
      Boost_USE_MULTITHREADED
  )
ENDIF(_boost_IN_CACHE)