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# This module builds Boost
# executables are. It sets the following variables:
#
# Boost_FOUND : boolean - system has Boost
# Boost_LIBRARIES : list(filepath) - the libraries needed to use Boost
# Boost_INCLUDE_DIRS : list(path) - the Boost include directories
#
# Following hints are respected
#
# Boost_USE_STATIC_LIBS : boolean (default: OFF)
# Boost_USE_MULTITHREADED : boolean (default: OFF)
# BOOST_J: integer (defanult 1)
function(do_build_boost version)
cmake_parse_arguments(Boost_BUILD "" "" COMPONENTS ${ARGN})
set(boost_features "variant=release")
if(Boost_USE_MULTITHREADED)
list(APPEND boost_features "threading=multi")
else()
list(APPEND boost_features "threading=single")
endif()
if(Boost_USE_STATIC_LIBS)
list(APPEND boost_features "link=static")
else()
list(APPEND boost_features "link=shared")
endif()
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
list(APPEND boost_features "address-model=64")
else()
list(APPEND boost_features "address-model=32")
endif()
set(BOOST_CXXFLAGS "-fPIC -w") # check on arm, etc <---XXX
list(APPEND boost_features "cxxflags=${BOOST_CXXFLAGS}")
string(REPLACE ";" "," boost_with_libs "${Boost_BUILD_COMPONENTS}")
# build b2 and prepare the project-config.jam for boost
set(configure_command
./bootstrap.sh --prefix=<INSTALL_DIR>
--with-libraries=${boost_with_libs})
set(b2 ./b2)
if(BOOST_J)
message(STATUS "BUILDING Boost Libraries at j ${BOOST_J}")
list(APPEND b2 -j${BOOST_J})
endif()
if(CMAKE_VERBOSE_MAKEFILE)
list(APPEND b2 -d1)
else()
list(APPEND b2 -d0)
endif()
if(NOT CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL CMAKE_SYSTEM_PROCESSOR)
# we are crosscompiling
if(CMAKE_CXX_COMPILER_ID STREQUAL GNU)
set(b2_cc gcc)
elseif(CMAKE_CXX_COMPILER_ID STREQUAL Clang)
set(b2_cc clang)
else()
message(SEND_ERROR "unknown compiler: ${CMAKE_CXX_COMPILER_ID}")
endif()
# edit the config.jam so, b2 will be able to use the specified toolset
execute_process(
COMMAND
sed -i
"s|using ${b2_cc} ;|using ${b2_cc} : ${CMAKE_SYSTEM_PROCESSOR} : ${CMAKE_CXX_COMPILER} ;|"
${PROJECT_SOURCE_DIR}/src/boost/project-config.jam)
# use ${CMAKE_SYSTEM_PROCESSOR} as the version identifier of compiler
list(APPEND b2 toolset=${b2_cc}-${CMAKE_SYSTEM_PROCESSOR})
endif()
set(build_command
${b2} headers stage
#"--buildid=ceph" # changes lib names--can omit for static
${boost_features})
set(install_command
${b2} install)
set(boost_root_dir "${CMAKE_BINARY_DIR}/boost")
if(EXISTS "${PROJECT_SOURCE_DIR}/src/boost/libs/config/include/boost/config.hpp")
message(STATUS "boost already in src")
set(source_dir
SOURCE_DIR "${PROJECT_SOURCE_DIR}/src/boost")
elseif(version VERSION_GREATER 1.63)
message(FATAL_ERROR "Unknown BOOST_REQUESTED_VERSION: ${version}")
else()
message(STATUS "boost will be downloaded...")
# NOTE: If you change this version number make sure the package is available
# at the three URLs below (may involve uploading to download.ceph.com)
set(boost_version 1.63.0)
set(boost_md5 1c837ecd990bb022d07e7aab32b09847)
string(REPLACE "." "_" boost_version_underscore ${boost_version} )
set(boost_url
https://dl.bintray.com/boostorg/release/${boost_version}/source/boost_${boost_version_underscore}.tar.bz2)
if(CMAKE_VERSION VERSION_GREATER 3.7)
set(boost_url
"${boost_url} http://downloads.sourceforge.net/project/boost/boost/${boost_version}/boost_${boost_version_underscore}.tar.bz2")
set(boost_url
"${boost_url} https://download.ceph.com/qa/boost_${boost_version_underscore}.tar.bz2")
endif()
set(source_dir
URL ${boost_url}
URL_MD5 ${boost_md5})
if(CMAKE_VERSION VERSION_GREATER 3.0)
list(APPEND source_dir DOWNLOAD_NO_PROGRESS 1)
endif()
endif()
# build all components in a single shot
include(ExternalProject)
ExternalProject_Add(Boost
${source_dir}
CONFIGURE_COMMAND CC=${CMAKE_C_COMPILER} CXX=${CMAKE_CXX_COMPILER} ${configure_command}
BUILD_COMMAND CC=${CMAKE_C_COMPILER} CXX=${CMAKE_CXX_COMPILER} ${build_command}
BUILD_IN_SOURCE 1
INSTALL_COMMAND ${install_command}
PREFIX "${boost_root_dir}")
endfunction()
macro(build_boost version)
do_build_boost(version ${ARGN})
ExternalProject_Get_Property(Boost install_dir)
set(Boost_INCLUDE_DIRS ${install_dir}/include)
set(Boost_INCLUDE_DIR ${install_dir}/include)
# create the directory so cmake won't complain when looking at the imported
# target
file(MAKE_DIRECTORY ${Boost_INCLUDE_DIRS})
cmake_parse_arguments(Boost_BUILD "" "" COMPONENTS ${ARGN})
foreach(c ${Boost_BUILD_COMPONENTS})
string(TOUPPER ${c} upper_c)
if(Boost_USE_STATIC_LIBS)
add_library(Boost::${c} STATIC IMPORTED)
else()
add_library(Boost::${c} SHARED IMPORTED)
endif()
add_dependencies(Boost::${c} Boost)
if(Boost_USE_STATIC_LIBS)
set(Boost_${upper_c}_LIBRARY
${install_dir}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}boost_${c}${CMAKE_STATIC_LIBRARY_SUFFIX})
else()
set(Boost_${upper_c}_LIBRARY
${install_dir}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}boost_${c}${CMAKE_SHARED_LIBRARY_SUFFIX})
endif()
set_target_properties(Boost::${c} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}"
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${Boost_${upper_c}_LIBRARY}")
list(APPEND Boost_LIBRARIES ${Boost_${upper_c}_LIBRARY})
endforeach()
# for header-only libraries
if(CMAKE_VERSION VERSION_LESS 3.3)
# only ALIAS and INTERFACE target names allow ":" in it, but
# INTERFACE library is not allowed until cmake 3.1
add_custom_target(Boost.boost DEPENDS Boost)
else()
add_library(Boost.boost INTERFACE IMPORTED)
set_target_properties(Boost.boost PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}")
add_dependencies(Boost.boost Boost)
endif()
find_package_handle_standard_args(Boost DEFAULT_MSG
Boost_INCLUDE_DIRS Boost_LIBRARIES)
mark_as_advanced(Boost_LIBRARIES BOOST_INCLUDE_DIRS)
endmacro()
function(maybe_add_boost_dep target)
get_target_property(imported ${target} IMPORTED)
if(imported)
return()
endif()
get_target_property(type ${target} TYPE)
if(NOT type MATCHES "OBJECT_LIBRARY|STATIC_LIBRARY|SHARED_LIBRARY|EXECUTABLE")
return()
endif()
get_target_property(sources ${target} SOURCES)
foreach(src ${sources})
get_filename_component(ext ${src} EXT)
# assuming all cxx source files include boost header(s)
if(ext MATCHES ".cc|.cpp|.cxx")
add_dependencies(${target} Boost.boost)
return()
endif()
endforeach()
endfunction()
# override add_library() to add Boost headers dependency
function(add_library target)
_add_library(${target} ${ARGN})
maybe_add_boost_dep(${target})
endfunction()
function(add_executable target)
_add_executable(${target} ${ARGN})
maybe_add_boost_dep(${target})
endfunction()
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