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# - Find the Boost includes and libraries.
# The following variables are set if Boost is found. If Boost is not
# found, Boost_FOUND is set to false.
# Boost_FOUND - True when the Boost include directory is found.
# Boost_INCLUDE_DIRS - the path to where the boost include files are.
# Boost_LIBRARY_DIRS - The path to where the boost library files are.
# Boost_LIB_DIAGNOSTIC_DEFINITIONS - Only set if using Windows.
# ----------------------------------------------------------------------------
# If you have installed Boost in a non-standard location or you have
# just staged the boost files using bjam then you have three
# options. In the following comments, it is assumed that <Your Path>
# points to the root directory of the include directory of Boost. e.g
# If you have put boost in C:\development\Boost then <Your Path> is
# "C:/development/Boost" and in this directory there will be two
# directories called "include" and "lib".
# 1) After CMake runs, set Boost_INCLUDE_DIR to <Your Path>/include/boost<-version>
# 2) Use CMAKE_INCLUDE_PATH to set a path to <Your Path>/include. This will allow FIND_PATH()
# to locate Boost_INCLUDE_DIR by utilizing the PATH_SUFFIXES option. e.g.
# SET(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} "<Your Path>/include")
# 3) Set an environment variable called ${BOOST_ROOT} that points to the root of where you have
# installed Boost, e.g. <Your Path>. It is assumed that there is at least a subdirectory called
# include in this path.
#
# Note:
# 1) If you are just using the boost headers, then you do not need to use
# Boost_LIBRARY_DIRS in your CMakeLists.txt file.
# 2) If Boost has not been installed, then when setting Boost_LIBRARY_DIRS
# the script will look for /lib first and, if this fails, then for /stage/lib.
#
# Usage:
# In your CMakeLists.txt file do something like this:
# ...
# # Boost
# FIND_PACKAGE(Boost)
# ...
# INCLUDE_DIRECTORIES(${Boost_INCLUDE_DIRS})
# LINK_DIRECTORIES(${Boost_LIBRARY_DIRS})
#
# In Windows, we make the assumption that, if the Boost files are installed, the default directory
# will be C:\boost.
#
# TODO:
#
# 1) Automatically find the Boost library files and eliminate the need
# to use Link Directories.
#
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")
ENDIF(WIN32)
SET(BOOST_INCLUDE_PATH_DESCRIPTION "directory containing the boost include files. E.g /usr/local/include/boost-1_33_1 or c:\\boost\\include\\boost-1_33_1")
SET(BOOST_DIR_MESSAGE "Set the Boost_INCLUDE_DIR cmake cache entry to the ${BOOST_INCLUDE_PATH_DESCRIPTION}")
SET(BOOST_DIR_SEARCH $ENV{BOOST_ROOT})
IF(BOOST_DIR_SEARCH)
FILE(TO_CMAKE_PATH ${BOOST_DIR_SEARCH} BOOST_DIR_SEARCH)
SET(BOOST_DIR_SEARCH ${BOOST_DIR_SEARCH}/include)
ENDIF(BOOST_DIR_SEARCH)
IF(WIN32)
SET(BOOST_DIR_SEARCH
${BOOST_DIR_SEARCH}
C:/boost/include
D:/boost/include
)
ENDIF(WIN32)
# Add in some path suffixes. These will have to be updated whenever a new Boost version comes out.
SET(SUFFIX_FOR_PATH
boost-1_34_1
boost-1_34_0
boost-1_33_1
boost-1_33_0
)
#
# Look for an installation.
#
FIND_PATH(Boost_INCLUDE_DIR NAMES boost/config.hpp PATH_SUFFIXES ${SUFFIX_FOR_PATH} PATHS
# Look in other places.
${BOOST_DIR_SEARCH}
# Help the user find it if we cannot.
DOC "The ${BOOST_INCLUDE_PATH_DESCRIPTION}"
)
# Assume we didn't find it.
SET(Boost_FOUND 0)
# Now try to get the include and library path.
IF(Boost_INCLUDE_DIR)
# 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_LIBRARY_DIR ${Boost_INCLUDE_DIR})
IF("${Boost_LIBRARY_DIR}" MATCHES "boost-[0-9]+")
GET_FILENAME_COMPONENT(Boost_LIBRARY_DIR ${Boost_LIBRARY_DIR} PATH)
ENDIF ("${Boost_LIBRARY_DIR}" MATCHES "boost-[0-9]+")
IF("${Boost_LIBRARY_DIR}" MATCHES "/include$")
# Strip off the trailing "/include" in the path.
GET_FILENAME_COMPONENT(Boost_LIBRARY_DIR ${Boost_LIBRARY_DIR} PATH)
ENDIF("${Boost_LIBRARY_DIR}" MATCHES "/include$")
IF(EXISTS "${Boost_LIBRARY_DIR}/lib")
SET (Boost_LIBRARY_DIR ${Boost_LIBRARY_DIR}/lib)
ELSE(EXISTS "${Boost_LIBRARY_DIR}/lib")
IF(EXISTS "${Boost_LIBRARY_DIR}/stage/lib")
SET(Boost_LIBRARY_DIR ${Boost_LIBRARY_DIR}/stage/lib)
ELSE(EXISTS "${Boost_LIBRARY_DIR}/stage/lib")
SET(Boost_LIBRARY_DIR "")
ENDIF(EXISTS "${Boost_LIBRARY_DIR}/stage/lib")
ENDIF(EXISTS "${Boost_LIBRARY_DIR}/lib")
IF(EXISTS "${Boost_INCLUDE_DIR}")
SET(Boost_INCLUDE_DIRS ${Boost_INCLUDE_DIR})
# We have found boost. It is possible that the user has not
# compiled any libraries so we set Boost_FOUND to be true here.
SET(Boost_FOUND 1)
ENDIF(EXISTS "${Boost_INCLUDE_DIR}")
IF(Boost_LIBRARY_DIR AND EXISTS "${Boost_LIBRARY_DIR}")
SET(Boost_LIBRARY_DIRS ${Boost_LIBRARY_DIR})
ENDIF(Boost_LIBRARY_DIR AND EXISTS "${Boost_LIBRARY_DIR}")
ENDIF(Boost_INCLUDE_DIR)
IF(NOT Boost_FOUND)
IF(NOT Boost_FIND_QUIETLY)
MESSAGE(STATUS "Boost was not found. ${BOOST_DIR_MESSAGE}")
ELSE(NOT Boost_FIND_QUIETLY)
IF(Boost_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Boost was not found. ${BOOST_DIR_MESSAGE}")
ENDIF(Boost_FIND_REQUIRED)
ENDIF(NOT Boost_FIND_QUIETLY)
ENDIF(NOT Boost_FOUND)
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