diff --git a/Modules/FindBoost.cmake b/Modules/FindBoost.cmake new file mode 100644 index 000000000..aca28c569 --- /dev/null +++ b/Modules/FindBoost.cmake @@ -0,0 +1,157 @@ +# - 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 +# points to the root directory of the include directory of Boost. e.g +# If you have put boost in C:\development\Boost then 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 /include/boost<-version> +# 2) Use CMAKE_INCLUDE_PATH to set a path to /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} "/include") +# 3) Set an environment variable called ${BOOST_ROOT} that points to the root of where you have +# installed Boost, e.g. . It is assumed that there is at least a subdirectory called +# include in this path. +# +# Note: +# 1) If you are just using the boost headers, then you do not need to use +# Boost_LIBRARY_DIRS in your CMakeLists.txt file. +# 2) If Boost has not been installed, then when setting Boost_LIBRARY_DIRS +# the script will look for /lib first and, if this fails, then for /stage/lib. +# +# Usage: +# In your CMakeLists.txt file do something like this: +# ... +# # Boost +# FIND_PACKAGE(Boost) +# ... +# INCLUDE_DIRECTORIES(${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) +