# - Try to find Boost include dirs and libraries # Usage of this module as follows: # # NOTE: Take note of the Boost_ADDITIONAL_VERSIONS variable below. # Due to Boost naming conventions and limitations in CMake this find # module is NOT future safe with respect to Boost version numbers, # and may break. # # == Using Header-Only libraries from within Boost: == # # find_package( Boost 1.36.0 ) # if(Boost_FOUND) # include_directories(${Boost_INCLUDE_DIRS}) # add_executable(foo foo.cc) # endif() # # # == Using actual libraries from within Boost: == # # set(Boost_USE_STATIC_LIBS ON) # set(Boost_USE_MULTITHREADED ON) # find_package( Boost 1.36.0 COMPONENTS date_time filesystem system … ) # # if(Boost_FOUND) # include_directories(${Boost_INCLUDE_DIRS}) # add_executable(foo foo.cc) # target_link_libraries(foo ${Boost_LIBRARIES}) # endif() # # # The components list needs to contain actual names of boost libraries only, # such as “date_time” for “libboost_date_time”. If you're using parts of # Boost that contain header files only (e.g. foreach) you do not need to # specify COMPONENTS. # # You should provide a minimum version number that should be used. If you provide this # version number and specify the REQUIRED attribute, this module will fail if it # can't find the specified or a later version. If you specify a version number this is # automatically put into the considered list of version numbers and thus doesn't need # to be specified in the Boost_ADDITIONAL_VERSIONS variable (see below). # # NOTE for Visual Studio Users: # Automatic linking is used on MSVC & Borland compilers by default when # including things in Boost. It's important to note that setting # Boost_USE_STATIC_LIBS to OFF is NOT enough to get you dynamic linking, # should you need this feature. Automatic linking typically uses static # libraries with a few exceptions (Boost.Python is one). # # Please see the section below near Boost_LIB_DIAGNOSTIC_DEFINITIONS for # more details. Adding a TARGET_LINK_LIBRARIES() as shown in the example # above appears to cause VS to link dynamically if Boost_USE_STATIC_LIBS # gets set to OFF. It is suggested you avoid automatic linking since it # will make your application less portable. # # =========== The mess that is Boost_ADDITIONAL_VERSIONS (sorry?) ============ # # OK, so the Boost_ADDITIONAL_VERSIONS variable can be used to specify a list of # boost version numbers that should be taken into account when searching # for Boost. Unfortunately boost puts the version number into the # actual filename for the libraries, so this variable will certainly be needed # in the future when new Boost versions are released. # # Currently this module searches for the following version numbers: # 1.33, 1.33.0, 1.33.1, 1.34, 1.34.0, 1.34.1, 1.35, 1.35.0, 1.35.1, # 1.36, 1.36.0, 1.36.1, 1.37, 1.37.0, 1.38, 1.38.0, 1.39, 1.39.0, # 1.40, 1.40.0, 1.41, 1.41.0 # # NOTE: If you add a new major 1.x version in Boost_ADDITIONAL_VERSIONS you should # add both 1.x and 1.x.0 as shown above. Official Boost include directories # omit the 3rd version number from include paths if it is 0 although not all # binary Boost releases do so. # # SET(Boost_ADDITIONAL_VERSIONS “1.78” “1.78.0” “1.79” “1.79.0”) # # ===================================== ============= ======================== # # Variables used by this module, they can change the default behaviour and # need to be set before calling find_package: # # Boost_USE_MULTITHREADED Can be set to OFF to use the non-multithreaded # boost libraries. If not specified, defaults # to ON. # # Boost_USE_STATIC_LIBS Can be set to ON to force the use of the static # boost libraries. Defaults to OFF. # # Other Variables used by this module which you may want to set. # # Boost_ADDITIONAL_VERSIONS A list of version numbers to use for searching # the boost include directory. Please see # the documentation above regarding this # annoying, but necessary variable :( # # Boost_DEBUG Set this to TRUE to enable debugging output # of FindBoost.cmake if you are having problems. # Please enable this before filing any bug # reports. # # Boost_DETAILED_FAILURE_MSG FindBoost doesn't output detailed information # about why it failed or how to fix the problem # unless this is set to TRUE or the REQUIRED # keyword is specified in find_package(). # [Since CMake 2.8.0] # # Boost_COMPILER Set this to the compiler suffix used by Boost # (e.g. “-gcc43”) if FindBoost has problems finding # the proper Boost installation # # These last three variables are available also as environment variables: # # BOOST_ROOT or BOOSTROOT The preferred installation prefix for searching for # Boost. Set this if the module has problems finding # the proper Boost installation. # # BOOST_INCLUDEDIR Set this to the include directory of Boost, if the # module has problems finding the proper Boost installation # # BOOST_LIBRARYDIR Set this to the lib directory of Boost, if the # module has problems finding the proper Boost installation # # Variables defined by this module: # # Boost_FOUND System has Boost, this means the include dir was # found, as well as all the libraries specified in # the COMPONENTS list. # # Boost_INCLUDE_DIRS Boost include directories: not cached # # Boost_INCLUDE_DIR This is almost the same as above, but this one is # cached and may be modified by advanced users # # Boost_LIBRARIES Link to these to use the Boost libraries that you # specified: not cached # # Boost_LIBRARY_DIRS The path to where the Boost library files are. # # Boost_VERSION The version number of the boost libraries that # have been found, same as in version.hpp from Boost # # Boost_LIB_VERSION The version number in filename form as # it's appended to the library filenames # # Boost_MAJOR_VERSION major version number of boost # Boost_MINOR_VERSION minor version number of boost # Boost_SUBMINOR_VERSION subminor version number of boost # # Boost_LIB_DIAGNOSTIC_DEFINITIONS [WIN32 Only] You can call # add_definitions(${Boost_LIB_DIAGNOSTIC_DEFINITIONS}) # to have diagnostic information about Boost's # automatic linking outputted during compilation time. # # For each component you specify in find_package(), the following (UPPER-CASE) # variables are set. You can use these variables if you would like to pick and # choose components for your targets instead of just using Boost_LIBRARIES. # # Boost_${COMPONENT}_FOUND True IF the Boost library “component” was found. # # Boost_${COMPONENT}_LIBRARY Contains the libraries for the specified Boost # “component” (includes debug and optimized keywords # when needed).

============================================================================= # Copyright 2006-2009 Kitware, Inc. # Copyright 2006-2008 Andreas Schneider <mail@cynapses.org> # Copyright 2007 Wengo # Copyright 2007 Mike Jackson # Copyright 2008 Andreas Pakulat <apaku@gmx.de> # Copyright 2008-2009 Philip Lowman <philip@yhbt.com> # # Distributed under the OSI-approved BSD License (the “License”); # see accompanying file Copyright.txt for details. # # This software is distributed WITHOUT ANY WARRANTY; without even the # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. # See the License for more information. ============================================================================= # (To distributed this file outside of CMake, substitute the full # License text for the above reference.)

#——————————————————————————- # FindBoost functions & macros # ############################################ # # Check the existence of the libraries. # ############################################ # This macro was taken directly from the FindQt4.cmake file that is included # with the CMake distribution. This is NOT my work. All work was done by the # original authors of the FindQt4.cmake file. Only minor modifications were # made to remove references to Qt and make this file more generally applicable # And ELSE/ENDIF pairs were removed for readability. #########################################################################

####################################################################### # For downward compatibility with CMake 2.6.0 the VERSION_LESS # functionality is being replaced with the help of following MACRO # # Input: a_in - value, not variable # b_in - value, not variable # result_out - variable with value: # -1 : a_in < b_in # 0 : a_in == b_in # 1 : a_in > b_in # # Written by James Bigler. MACRO(COMPARE_VERSION_STRINGS a_in b_in result_out)

# Since SEPARATE_ARGUMENTS using ' ' as the separation token,
# replace '.' with ' ' to allow easy tokenization of the string.
STRING(REPLACE "." " " a ${a_in})
STRING(REPLACE "." " " b ${b_in})
SEPARATE_ARGUMENTS(a)
SEPARATE_ARGUMENTS(b)

# Check the size of each list to see if they are equal.
LIST(LENGTH a a_length)
LIST(LENGTH b b_length)

# Pad the shorter list with zeros.

# Note that range needs to be one less than the length as the for
# loop is inclusive (silly CMake).
IF(a_length LESS b_length)
    # a is shorter
    SET(shorter a)
    MATH(EXPR range "${b_length} - 1")
    MATH(EXPR pad_range "${b_length} - ${a_length} - 1")
ELSE(a_length LESS b_length)
    # b is shorter
    SET(shorter b)
    MATH(EXPR range "${a_length} - 1")
    MATH(EXPR pad_range "${a_length} - ${b_length} - 1")
ENDIF(a_length LESS b_length)

# PAD out if we need to
IF(NOT pad_range LESS 0)
    FOREACH(pad RANGE ${pad_range})
        # Since shorter is an alias for b, we need to get to it by by dereferencing shorter.
        LIST(APPEND ${shorter} 0)
    ENDFOREACH(pad RANGE ${pad_range})
ENDIF(NOT pad_range LESS 0)

SET(result 0)
FOREACH(index RANGE ${range})
    IF(result EQUAL 0)
        # Only continue to compare things as long as they are equal
        LIST(GET a ${index} a_version)
        LIST(GET b ${index} b_version)
        # LESS
        IF(a_version LESS b_version)
            SET(result -1)
        ENDIF(a_version LESS b_version)
        # GREATER
        IF(a_version GREATER b_version)
            SET(result 1)
        ENDIF(a_version GREATER b_version)
    ENDIF(result EQUAL 0)
ENDFOREACH(index)

# Copy out the return result
SET(${result_out} ${result})

ENDMACRO(COMPARE_VERSION_STRINGS)

MACRO(COMPARE_VERSION a OP b)

set(COMPARE_VERSION_EVAL false)
COMPARE_VERSION_STRINGS(${a} ${b} result)
if( "${OP}" STREQUAL "VERSION_LESS") 
    if(result LESS 0)
        set(COMPARE_VERSION_EVAL true)
    endif()
elseif( "${OP}" STREQUAL "VERSION_GREATER") 
    if(result GREATER 0)
        set(COMPARE_VERSION_EVAL true)
    endif()
elseif( "${OP}" STREQUAL "VERSION_EQUAL")
    set(COMPARE_VERSION_EVAL true)
endif()

ENDMACRO(COMPARE_VERSION) ######################################################################

###################################################################### MACRO (_Boost_ADJUST_LIB_VARS basename)

IF (Boost_INCLUDE_DIR )
  IF (Boost_${basename}_LIBRARY_DEBUG AND Boost_${basename}_LIBRARY_RELEASE)
    # if the generator supports configuration types then set
    # optimized and debug libraries, or if the CMAKE_BUILD_TYPE has a value
    IF (CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE)
      SET(Boost_${basename}_LIBRARY optimized ${Boost_${basename}_LIBRARY_RELEASE} debug ${Boost_${basename}_LIBRARY_DEBUG})
    ELSE()
      # if there are no configuration types and CMAKE_BUILD_TYPE has no value
      # then just use the release libraries
      SET(Boost_${basename}_LIBRARY ${Boost_${basename}_LIBRARY_RELEASE} )
    ENDIF()
    # FIXME: This probably should be set for both cases
    SET(Boost_${basename}_LIBRARIES optimized ${Boost_${basename}_LIBRARY_RELEASE} debug ${Boost_${basename}_LIBRARY_DEBUG})
  ENDIF()

  # if only the release version was found, set the debug variable also to the release version
  IF (Boost_${basename}_LIBRARY_RELEASE AND NOT Boost_${basename}_LIBRARY_DEBUG)
    SET(Boost_${basename}_LIBRARY_DEBUG ${Boost_${basename}_LIBRARY_RELEASE})
    SET(Boost_${basename}_LIBRARY       ${Boost_${basename}_LIBRARY_RELEASE})
    SET(Boost_${basename}_LIBRARIES     ${Boost_${basename}_LIBRARY_RELEASE})
  ENDIF()

  # if only the debug version was found, set the release variable also to the debug version
  IF (Boost_${basename}_LIBRARY_DEBUG AND NOT Boost_${basename}_LIBRARY_RELEASE)
    SET(Boost_${basename}_LIBRARY_RELEASE ${Boost_${basename}_LIBRARY_DEBUG})
    SET(Boost_${basename}_LIBRARY         ${Boost_${basename}_LIBRARY_DEBUG})
    SET(Boost_${basename}_LIBRARIES       ${Boost_${basename}_LIBRARY_DEBUG})
  ENDIF()

  IF (Boost_${basename}_LIBRARY)
    set(Boost_${basename}_LIBRARY ${Boost_${basename}_LIBRARY} CACHE FILEPATH "The Boost ${basename} library")

    # Remove superfluous "debug" / "optimized" keywords from
    # Boost_LIBRARY_DIRS
    FOREACH(_boost_my_lib ${Boost_${basename}_LIBRARY})
      GET_FILENAME_COMPONENT(_boost_my_lib_path "${_boost_my_lib}" PATH)
      LIST(APPEND Boost_LIBRARY_DIRS ${_boost_my_lib_path})
    ENDFOREACH()
    LIST(REMOVE_DUPLICATES Boost_LIBRARY_DIRS)

    set(Boost_LIBRARY_DIRS ${Boost_LIBRARY_DIRS} CACHE FILEPATH "Boost library directory")
    SET(Boost_${basename}_FOUND ON CACHE INTERNAL "Whether the Boost ${basename} library found")
  ENDIF(Boost_${basename}_LIBRARY)

ENDIF (Boost_INCLUDE_DIR )
# Make variables changeble to the advanced user
MARK_AS_ADVANCED(
    Boost_${basename}_LIBRARY
    Boost_${basename}_LIBRARY_RELEASE
    Boost_${basename}_LIBRARY_DEBUG
)

ENDMACRO (_Boost_ADJUST_LIB_VARS)

#——————————————————————————-

# # Runs compiler with “-dumpversion” and parses major/minor # version with a regex. # FUNCTION(_Boost_COMPILER_DUMPVERSION _OUTPUT_VERSION)

EXEC_PROGRAM(${CMAKE_CXX_COMPILER}
  ARGS ${CMAKE_CXX_COMPILER_ARG1} -dumpversion
  OUTPUT_VARIABLE _boost_COMPILER_VERSION
)
STRING(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
  _boost_COMPILER_VERSION ${_boost_COMPILER_VERSION})

SET(${_OUTPUT_VERSION} ${_boost_COMPILER_VERSION} PARENT_SCOPE)

ENDFUNCTION()

# # A convenience function for marking desired components # as found or not # function(_Boost_MARK_COMPONENTS_FOUND _yes_or_no)

foreach(COMPONENT ${Boost_FIND_COMPONENTS})
  string(TOUPPER ${COMPONENT} UPPERCOMPONENT)
  set(Boost_${UPPERCOMPONENT}_FOUND ${_yes_or_no} CACHE INTERNAL "Whether the Boost ${COMPONENT} library found" FORCE)
endforeach()

endfunction()

# # End functions/macros #

#——————————————————————————-

IF(NOT DEFINED Boost_USE_MULTITHREADED)

SET(Boost_USE_MULTITHREADED TRUE)

ENDIF()

if(Boost_FIND_VERSION_EXACT)

# The version may appear in a directory with or without the patch
# level, even when the patch level is non-zero.
set(_boost_TEST_VERSIONS
  "${Boost_FIND_VERSION_MAJOR}.${Boost_FIND_VERSION_MINOR}.${Boost_FIND_VERSION_PATCH}"
  "${Boost_FIND_VERSION_MAJOR}.${Boost_FIND_VERSION_MINOR}")

else(Boost_FIND_VERSION_EXACT)

# The user has not requested an exact version.  Among known
# versions, find those that are acceptable to the user request.
set(_Boost_KNOWN_VERSIONS ${Boost_ADDITIONAL_VERSIONS}
  "1.41.0" "1.41" "1.40.0" "1.40" "1.39.0" "1.39" "1.38.0" "1.38" "1.37.0" "1.37"
  "1.36.1" "1.36.0" "1.36" "1.35.1" "1.35.0" "1.35" "1.34.1" "1.34.0"
  "1.34" "1.33.1" "1.33.0" "1.33")
set(_boost_TEST_VERSIONS)
if(Boost_FIND_VERSION)
  set(_Boost_FIND_VERSION_SHORT "${Boost_FIND_VERSION_MAJOR}.${Boost_FIND_VERSION_MINOR}")
  # Select acceptable versions.
  foreach(version ${_Boost_KNOWN_VERSIONS})
    COMPARE_VERSION("${version}" VERSION_GREATER "${Boost_FIND_VERSION}")
    if(COMPARE_VERSION_EVAL)
      # This version is high enough.
      list(APPEND _boost_TEST_VERSIONS "${version}")
    else()
      COMPARE_VERSION("${version}.99" VERSION_EQUAL "${_Boost_FIND_VERSION_SHORT}.99")
      if(COMPARE_VERSION_EVAL)
          # This version is a short-form for the requested version with
          # the patch level dropped.
          list(APPEND _boost_TEST_VERSIONS "${version}")
      endif()
    endif()
  endforeach(version)
else(Boost_FIND_VERSION)
  # Any version is acceptable.
  set(_boost_TEST_VERSIONS "${_Boost_KNOWN_VERSIONS}")
endif(Boost_FIND_VERSION)

endif(Boost_FIND_VERSION_EXACT)

# The reason that we failed to find Boost. This will be set to a # user-friendly message when we fail to find some necessary piece of # Boost. set(Boost_ERROR_REASON)

SET( _boost_IN_CACHE TRUE) IF(Boost_INCLUDE_DIR)

# On versions < 1.35, remove the System library from the considered list
# since it wasn't added until 1.35.
if(Boost_VERSION AND Boost_FIND_COMPONENTS)
   math(EXPR _boost_maj "${Boost_VERSION} / 100000")
   math(EXPR _boost_min "${Boost_VERSION} / 100 % 1000")
   COMPARE_VERSION(${_boost_maj}.${_boost_min} VERSION_LESS 1.35)
   if(COMPARE_VERSION_EVAL)
     list(REMOVE_ITEM Boost_FIND_COMPONENTS system)
   endif()
endif()

FOREACH(COMPONENT ${Boost_FIND_COMPONENTS})
  STRING(TOUPPER ${COMPONENT} COMPONENT)
  IF(NOT Boost_${COMPONENT}_FOUND)
    SET( _boost_IN_CACHE FALSE)
  ENDIF(NOT Boost_${COMPONENT}_FOUND)
ENDFOREACH(COMPONENT)

ELSE(Boost_INCLUDE_DIR)

SET( _boost_IN_CACHE FALSE)

ENDIF(Boost_INCLUDE_DIR)

IF (_boost_IN_CACHE)

# in cache already
SET(Boost_FOUND TRUE)
FOREACH(COMPONENT ${Boost_FIND_COMPONENTS})
  STRING(TOUPPER ${COMPONENT} COMPONENT)
  _Boost_ADJUST_LIB_VARS( ${COMPONENT} )
  SET(Boost_LIBRARIES ${Boost_LIBRARIES} ${Boost_${COMPONENT}_LIBRARY})
ENDFOREACH(COMPONENT)
SET(Boost_INCLUDE_DIRS ${Boost_INCLUDE_DIR})
IF(Boost_VERSION AND NOT "${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 "${Boost_VERSION} % 100")
ENDIF(Boost_VERSION AND NOT "${Boost_VERSION}" STREQUAL "0")
if(Boost_DEBUG)
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                   "boost ${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION} "
                   "is already in the cache.  For debugging messages, please clear the cache.")
endif()

ELSE (_boost_IN_CACHE)

# Need to search for boost
if(Boost_DEBUG)
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "Boost not in cache")
  # Output some of their choices
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "_boost_TEST_VERSIONS = ${_boost_TEST_VERSIONS}")
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "Boost_USE_MULTITHREADED = ${Boost_USE_MULTITHREADED}")
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "Boost_USE_STATIC_LIBS = ${Boost_USE_STATIC_LIBS}")
endif()

IF(WIN32)
  # In windows, automatic linking is performed, so you do not have
  # to specify the libraries.  If you are linking to a dynamic
  # runtime, then you can choose to link to either a static or a
  # dynamic Boost library, the default is to do a static link.  You
  # can alter this for a specific library "whatever" by defining
  # BOOST_WHATEVER_DYN_LINK to force Boost library "whatever" to be
  # linked dynamically.  Alternatively you can force all Boost
  # libraries to dynamic link by defining BOOST_ALL_DYN_LINK.

  # This feature can be disabled for Boost library "whatever" by
  # defining BOOST_WHATEVER_NO_LIB, or for all of Boost by defining
  # BOOST_ALL_NO_LIB.

  # If you want to observe which libraries are being linked against
  # then defining BOOST_LIB_DIAGNOSTIC will cause the auto-linking
  # code to emit a #pragma message each time a library is selected
  # for linking.
  SET(Boost_LIB_DIAGNOSTIC_DEFINITIONS 
    "-DBOOST_LIB_DIAGNOSTIC" CACHE STRING "Boost diagnostic define")
ENDIF(WIN32)

SET(_boost_INCLUDE_SEARCH_DIRS
  C:/boost/include
  C:/boost
  "$ENV{ProgramFiles}/boost/include"
  "$ENV{ProgramFiles}/boost"
  /sw/local/include
)

# If BOOST_ROOT was defined in the environment, use it.
if (NOT BOOST_ROOT AND NOT $ENV{BOOST_ROOT} STREQUAL "")
  set(BOOST_ROOT $ENV{BOOST_ROOT})
endif(NOT BOOST_ROOT AND NOT $ENV{BOOST_ROOT} STREQUAL "")

# If BOOSTROOT was defined in the environment, use it.
if (NOT BOOST_ROOT AND NOT $ENV{BOOSTROOT} STREQUAL "")
  set(BOOST_ROOT $ENV{BOOSTROOT})
endif(NOT BOOST_ROOT AND NOT $ENV{BOOSTROOT} STREQUAL "")

# If BOOST_INCLUDEDIR was defined in the environment, use it.
IF( NOT $ENV{BOOST_INCLUDEDIR} STREQUAL "" )
  set(BOOST_INCLUDEDIR $ENV{BOOST_INCLUDEDIR})
ENDIF( NOT $ENV{BOOST_INCLUDEDIR} STREQUAL "" )

# If BOOST_LIBRARYDIR was defined in the environment, use it.
IF( NOT $ENV{BOOST_LIBRARYDIR} STREQUAL "" )
  set(BOOST_LIBRARYDIR $ENV{BOOST_LIBRARYDIR})
ENDIF( NOT $ENV{BOOST_LIBRARYDIR} STREQUAL "" )

IF( BOOST_ROOT )
  file(TO_CMAKE_PATH ${BOOST_ROOT} BOOST_ROOT)
ENDIF( BOOST_ROOT )

if(Boost_DEBUG)
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "Declared as CMake or Environmental Variables:")
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "  BOOST_ROOT = ${BOOST_ROOT}")
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "  BOOST_INCLUDEDIR = ${BOOST_INCLUDEDIR}")
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "  BOOST_LIBRARYDIR = ${BOOST_LIBRARYDIR}")
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                 "_boost_TEST_VERSIONS = ${_boost_TEST_VERSIONS}")
endif()

IF( BOOST_ROOT )
  SET(_boost_INCLUDE_SEARCH_DIRS 
    ${BOOST_ROOT}/include 
    ${BOOST_ROOT}
    ${_boost_INCLUDE_SEARCH_DIRS})
ENDIF( BOOST_ROOT )

IF( BOOST_INCLUDEDIR )
  file(TO_CMAKE_PATH ${BOOST_INCLUDEDIR} BOOST_INCLUDEDIR)
  SET(_boost_INCLUDE_SEARCH_DIRS 
    ${BOOST_INCLUDEDIR} ${_boost_INCLUDE_SEARCH_DIRS})
ENDIF( BOOST_INCLUDEDIR )

# ------------------------------------------------------------------------
#  Search for Boost include DIR 
# ------------------------------------------------------------------------
# Try to find Boost by stepping backwards through the Boost versions
# we know about.
IF( NOT Boost_INCLUDE_DIR )
  # Build a list of path suffixes for each version.
  SET(_boost_PATH_SUFFIXES)
  FOREACH(_boost_VER ${_boost_TEST_VERSIONS})
    # Add in a path suffix, based on the required version, ideally
    # we could read this from version.hpp, but for that to work we'd
    # need to know the include dir already
    set(_boost_BOOSTIFIED_VERSION)

    # Transform 1.35 => 1_35 and 1.36.0 => 1_36_0
    IF(_boost_VER MATCHES "[0-9]+\\.[0-9]+\\.[0-9]+")
        STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)\\.([0-9]+)" "\\1_\\2_\\3" 
          _boost_BOOSTIFIED_VERSION ${_boost_VER})
    ELSEIF(_boost_VER MATCHES "[0-9]+\\.[0-9]+")
        STRING(REGEX REPLACE "([0-9]+)\\.([0-9]+)" "\\1_\\2" 
          _boost_BOOSTIFIED_VERSION ${_boost_VER})
    ENDIF()

    list(APPEND _boost_PATH_SUFFIXES "boost-${_boost_BOOSTIFIED_VERSION}")
    if(WIN32)
      # For BoostPro's underscores (and others?)
      list(APPEND _boost_PATH_SUFFIXES "boost_${_boost_BOOSTIFIED_VERSION}")
    endif()

  ENDFOREACH(_boost_VER)

  if(Boost_DEBUG)
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                   "Include debugging info:")
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                   "  _boost_INCLUDE_SEARCH_DIRS = ${_boost_INCLUDE_SEARCH_DIRS}")
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                   "  _boost_PATH_SUFFIXES = ${_boost_PATH_SUFFIXES}")
  endif()

  # First check the default ones 
  FIND_PATH(Boost_INCLUDE_DIR
    NAMES         boost/config.hpp
    PATHS         ${_boost_INCLUDE_SEARCH_DIRS}
    NO_DEFAULT_PATH
  )

  # Look for a standard boost header file.
  if(NOT Boost_INCLUDE_DIR)
      FIND_PATH(Boost_INCLUDE_DIR
        NAMES         boost/config.hpp
        HINTS         ${_boost_INCLUDE_SEARCH_DIRS}
        PATH_SUFFIXES ${_boost_PATH_SUFFIXES}
  )
  endif()
ENDIF( NOT Boost_INCLUDE_DIR )

# ------------------------------------------------------------------------
#  Extract version information from version.hpp
# ------------------------------------------------------------------------
IF(Boost_INCLUDE_DIR)
  # Extract Boost_VERSION and Boost_LIB_VERSION from version.hpp
  # Read the whole file:
  #
  SET(BOOST_VERSION 0)
  SET(BOOST_LIB_VERSION "")
  FILE(READ "${Boost_INCLUDE_DIR}/boost/version.hpp" _boost_VERSION_HPP_CONTENTS)
  if(Boost_DEBUG)
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                   "location of version.hpp: ${Boost_INCLUDE_DIR}/boost/version.hpp")
  endif()

  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")
  if(Boost_DEBUG)
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                   "version.hpp reveals boost "
                   "${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION}.${Boost_SUBMINOR_VERSION}")
  endif()
ELSE(Boost_INCLUDE_DIR)
  set(Boost_ERROR_REASON
    "${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)

# ------------------------------------------------------------------------
#  Suffix initialization and compiler suffix detection.
# ------------------------------------------------------------------------

# Setting some more suffixes for the library
SET (Boost_LIB_PREFIX "")
if ( WIN32 AND Boost_USE_STATIC_LIBS )
  SET (Boost_LIB_PREFIX "lib")
endif()

if (Boost_COMPILER)
  set(_boost_COMPILER ${Boost_COMPILER})
  if(Boost_DEBUG)
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
                   "using user-specified Boost_COMPILER = ${_boost_COMPILER}")
  endif()
else(Boost_COMPILER)
  # Attempt to guess the compiler suffix
  # NOTE: this is not perfect yet, if you experience any issues
  # please report them and use the Boost_COMPILER variable
  # to work around the problems.
  if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Intel"
      OR "${CMAKE_CXX_COMPILER}" MATCHES "icl" 
      OR "${CMAKE_CXX_COMPILER}" MATCHES "icpc")
    if(WIN32)
      set (_boost_COMPILER "-iw")
    else()
      set (_boost_COMPILER "-il")
    endif()
  elseif (MSVC90)
    SET (_boost_COMPILER "-vc90")
  elseif (MSVC10)
    SET (_boost_COMPILER "-vc100")
  elseif (MSVC80)
    SET (_boost_COMPILER "-vc80")
  elseif (MSVC71)
    SET (_boost_COMPILER "-vc71")
  elseif (MSVC70) # Good luck!
    SET (_boost_COMPILER "-vc7") # yes, this is correct
  elseif (MSVC60) # Good luck!
    SET (_boost_COMPILER "-vc6") # yes, this is correct
  elseif (BORLAND)
    SET (_boost_COMPILER "-bcb")
  elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "SunPro")
    set(_boost_COMPILER "-sw")
  elseif (MINGW)
    COMPARE_VERSION(${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION} VERSION_LESS 1.34)
    if(COMPARE_VERSION_EVAL)
        SET(_boost_COMPILER "-mgw") # no GCC version encoding prior to 1.34
    else()
      _Boost_COMPILER_DUMPVERSION(_boost_COMPILER_VERSION)
      SET (_boost_COMPILER "-mgw${_boost_COMPILER_VERSION}")
    endif()
  elseif (UNIX)
    if (CMAKE_COMPILER_IS_GNUCXX)
      COMPARE_VERSION(${Boost_MAJOR_VERSION}.${Boost_MINOR_VERSION} VERSION_LESS 1.34)
      if(COMPARE_VERSION_EVAL)
        SET(_boost_COMPILER "-gcc") # no GCC version encoding prior to 1.34
      else()
        _Boost_COMPILER_DUMPVERSION(_boost_COMPILER_VERSION)
        # Determine which version of GCC we have.
        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()
    endif (CMAKE_COMPILER_IS_GNUCXX)
  endif()
  if(Boost_DEBUG)
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
      "guessed _boost_COMPILER = ${_boost_COMPILER}")
  endif()
endif(Boost_COMPILER)

SET (_boost_MULTITHREADED "-mt")
if( NOT Boost_USE_MULTITHREADED )
  set (_boost_MULTITHREADED "")
endif()
if(Boost_DEBUG)
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
    "_boost_MULTITHREADED = ${_boost_MULTITHREADED}")
endif()

SET( _boost_STATIC_TAG "")
set( _boost_ABI_TAG "")
IF (WIN32)
  IF(MSVC OR "${CMAKE_CXX_COMPILER}" MATCHES "icl"
          OR "${CMAKE_CXX_COMPILER}" MATCHES "icpc")
    SET (_boost_ABI_TAG "g")
  ENDIF()
  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")
if(Boost_DEBUG)
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
    "_boost_STATIC_TAG = ${_boost_STATIC_TAG}")
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
    "_boost_ABI_TAG = ${_boost_ABI_TAG}")
endif()

# ------------------------------------------------------------------------
#  Begin finding boost libraries
# ------------------------------------------------------------------------

SET(_boost_LIBRARIES_SEARCH_DIRS
  ${Boost_INCLUDE_DIR}/lib
  ${Boost_INCLUDE_DIR}/../lib
  C:/boost/lib
  C:/boost
  "$ENV{ProgramFiles}/boost/boost_${Boost_MAJOR_VERSION}_${Boost_MINOR_VERSION}_${Boost_SUBMINOR_VERSION}/lib"
  "$ENV{ProgramFiles}/boost/boost_${Boost_MAJOR_VERSION}_${Boost_MINOR_VERSION}/lib"
  "$ENV{ProgramFiles}/boost/lib"
  "$ENV{ProgramFiles}/boost"
  /sw/local/lib
)
IF( BOOST_ROOT )
  SET(_boost_LIBRARIES_SEARCH_DIRS 
    ${BOOST_ROOT}/lib 
    ${BOOST_ROOT}/stage/lib 
    ${_boost_LIBRARIES_SEARCH_DIRS})
ENDIF( BOOST_ROOT )

IF( BOOST_LIBRARYDIR )
  file(TO_CMAKE_PATH ${BOOST_LIBRARYDIR} BOOST_LIBRARYDIR)
  SET(_boost_LIBRARIES_SEARCH_DIRS 
    ${BOOST_LIBRARYDIR} ${_boost_LIBRARIES_SEARCH_DIRS})
ENDIF( BOOST_LIBRARYDIR )

if(Boost_DEBUG)
  message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] "
    "_boost_LIBRARIES_SEARCH_DIRS = ${_boost_LIBRARIES_SEARCH_DIRS}")
endif()

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 )

      # Search first in the user specified locations 
  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_VERSION}
             ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}${_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}
      PATHS  ${_boost_LIBRARIES_SEARCH_DIRS}
              NO_DEFAULT_PATH
      )
      FIND_LIBRARY(Boost_${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_VERSION}
             ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}${_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}
      PATHS  ${_boost_LIBRARIES_SEARCH_DIRS}
              NO_DEFAULT_PATH
  )

      # Consider system default pathes once custom search failed
      if(NOT Boost_${UPPERCOMPONENT}_LIBRARY_RELEASE)
              FIND_LIBRARY(Boost_${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_VERSION}
                                 ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}${_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  ${_boost_LIBRARIES_SEARCH_DIRS}
              )
      endif(NOT Boost_${UPPERCOMPONENT}_LIBRARY_RELEASE)

      if(NOT Boost_${UPPERCOMPONENT}_LIBRARY_DEBUG)
              FIND_LIBRARY(Boost_${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_VERSION}
                                 ${Boost_LIB_PREFIX}boost_${COMPONENT}${_boost_MULTITHREADED}${_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  ${_boost_LIBRARIES_SEARCH_DIRS}
      )
      endif(NOT Boost_${UPPERCOMPONENT}_LIBRARY_DEBUG)

  _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 (NOT Boost_FOUND)
    _Boost_MARK_COMPONENTS_FOUND(OFF)
  endif()

  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)
    _Boost_MARK_COMPONENTS_FOUND(OFF)
    if(Boost_MAJOR_VERSION EQUAL "${Boost_FIND_VERSION_MAJOR}" )
      if(Boost_MINOR_VERSION EQUAL "${Boost_FIND_VERSION_MINOR}" )
        if(Boost_SUBMINOR_VERSION EQUAL "${Boost_FIND_VERSION_PATCH}" )
          set( Boost_FOUND TRUE )
          _Boost_MARK_COMPONENTS_FOUND(ON)
        endif(Boost_SUBMINOR_VERSION EQUAL "${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_DEBUG)
    message(STATUS "[ ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE} ] Boost_FOUND = ${Boost_FOUND}")
  endif()

  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}")
      if(Boost_FIND_COMPONENTS)
        message(STATUS "Using the following Boost include directory: ${Boost_INCLUDE_DIR}")
        message(STATUS "Found the following Boost libraries:")
      endif()
    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}: ${Boost_${UPPERCOMPONENT}_LIBRARY}")
        ENDIF(NOT Boost_FIND_QUIETLY)
        SET(Boost_LIBRARIES ${Boost_LIBRARIES} ${Boost_${UPPERCOMPONENT}_LIBRARY})
      ENDIF ( Boost_${UPPERCOMPONENT}_FOUND )
    ENDFOREACH(COMPONENT)
else()
  if(Boost_FIND_REQUIRED)
    message(SEND_ERROR "Unable to find the requested Boost libraries.\n${Boost_ERROR_REASON}")
  else()
    if(NOT Boost_FIND_QUIETLY)
      # we opt not to automatically output Boost_ERROR_REASON here as
      # it could be quite lengthy and somewhat imposing in it's requests
      # Since Boost is not always a required dependency we'll leave this
      # up to the end-user.
      if(Boost_DEBUG OR Boost_DETAILED_FAILURE_MSG)
        message(STATUS "Could NOT find Boost\n${Boost_ERROR_REASON}")
      else()
        message(STATUS "Could NOT find Boost")
      endif()
    endif()
  endif(Boost_FIND_REQUIRED)
endif()

# 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
)

ENDIF(_boost_IN_CACHE)