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+# This module builds Boost. It sets the following variables:
+#
+# Boost_FOUND : boolean - system has Boost
+# BOOST_ROOT : path
+# Boost_LIBRARIES : list(filepath) - the libraries needed to use Boost
+# Boost_LIBRARY_DIR_RELEASE : path - the library path
+# 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(check_boost_version source_dir expected_version)
+ set(version_hpp "${source_dir}/boost/version.hpp")
+ if(NOT EXISTS ${version_hpp})
+ message(FATAL_ERROR "${version_hpp} not found. Please either \"rm -rf ${source_dir}\" "
+ "so I can download Boost v${expected_version} for you, or make sure ${source_dir} "
+ "contains a full copy of Boost v${expected_version}.")
+ endif()
+ file(STRINGS "${version_hpp}" BOOST_VERSION_LINE
+ REGEX "^#define[ \t]+BOOST_VERSION[ \t]+[0-9]+$")
+ string(REGEX REPLACE "^#define[ \t]+BOOST_VERSION[ \t]+([0-9]+)$"
+ "\\1" BOOST_VERSION "${BOOST_VERSION_LINE}")
+ math(EXPR BOOST_VERSION_PATCH "${BOOST_VERSION} % 100")
+ math(EXPR BOOST_VERSION_MINOR "${BOOST_VERSION} / 100 % 1000")
+ math(EXPR BOOST_VERSION_MAJOR "${BOOST_VERSION} / 100000")
+ set(version "${BOOST_VERSION_MAJOR}.${BOOST_VERSION_MINOR}.${BOOST_VERSION_PATCH}")
+ if(version VERSION_LESS expected_version)
+ message(FATAL_ERROR "Boost v${version} in ${source_dir} is not new enough. "
+ "Please either \"rm -rf ${source_dir}\" so I can download Boost v${expected_version} "
+ "for you, or make sure ${source_dir} contains a copy of Boost v${expected_version}.")
+ else()
+ message(STATUS "boost (${version} >= ${expected_version}) already in ${source_dir}")
+ endif()
+endfunction()
+
+macro(list_replace list old new)
+ list(FIND ${list} ${old} where)
+ if(where GREATER -1)
+ list(REMOVE_AT ${list} ${where})
+ list(INSERT ${list} ${where} ${new})
+ endif()
+ unset(where)
+endmacro()
+
+function(do_build_boost root_dir 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_with_libs)
+ foreach(c ${Boost_BUILD_COMPONENTS})
+ if(c MATCHES "^python([0-9])\$")
+ set(with_python_version "${CMAKE_MATCH_1}")
+ list(APPEND boost_with_libs "python")
+ elseif(c MATCHES "^python([0-9])\\.?([0-9]+)\$")
+ set(with_python_version "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}")
+ list(APPEND boost_with_libs "python")
+ else()
+ list(APPEND boost_with_libs ${c})
+ endif()
+ endforeach()
+ list_replace(boost_with_libs "unit_test_framework" "test")
+ string(REPLACE ";" "," boost_with_libs "${boost_with_libs}")
+
+ if(CMAKE_CXX_COMPILER_ID STREQUAL GNU)
+ set(toolset gcc)
+ elseif(CMAKE_CXX_COMPILER_ID STREQUAL Clang)
+ set(toolset clang)
+ else()
+ message(SEND_ERROR "unknown compiler: ${CMAKE_CXX_COMPILER_ID}")
+ endif()
+
+ # build b2 and prepare the project-config.jam for boost
+ set(configure_command
+ ./bootstrap.sh --prefix=<INSTALL_DIR>
+ --with-libraries=${boost_with_libs}
+ --with-toolset=${toolset})
+
+ set(b2 ./b2)
+ if(BOOST_J)
+ message(STATUS "BUILDING Boost Libraries at j ${BOOST_J}")
+ list(APPEND b2 -j${BOOST_J})
+ endif()
+ # suppress all debugging levels for b2
+ list(APPEND b2 -d0)
+
+ set(user_config ${CMAKE_BINARY_DIR}/user-config.jam)
+ # edit the user-config.jam so b2 will be able to use the specified
+ # toolset and python
+ file(WRITE ${user_config}
+ "using ${toolset}"
+ " : "
+ " : ${CMAKE_CXX_COMPILER}"
+ " : <compileflags>-fPIC <compileflags>-w <compileflags>-Wno-everything"
+ " ;\n")
+ if(with_python_version)
+ find_package(Python3 ${with_python_version} QUIET REQUIRED
+ COMPONENTS Development)
+ string(REPLACE ";" " " python3_includes "${Python3_INCLUDE_DIRS}")
+ file(APPEND ${user_config}
+ "using python"
+ " : ${with_python_version}"
+ " : ${Python3_EXECUTABLE}"
+ " : ${python3_includes}"
+ " : ${Python3_LIBRARIES}"
+ " ;\n")
+ endif()
+ list(APPEND b2 --user-config=${user_config})
+
+ list(APPEND b2 toolset=${toolset})
+ if(with_python_version)
+ list(APPEND b2 python=${with_python_version})
+ endif()
+ if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM")
+ list(APPEND b2 abi=aapcs)
+ list(APPEND b2 architecture=arm)
+ list(APPEND b2 binary-format=elf)
+ endif()
+ if(WITH_BOOST_VALGRIND)
+ list(APPEND b2 valgrind=on)
+ endif()
+ set(build_command
+ ${b2} headers stage
+ #"--buildid=ceph" # changes lib names--can omit for static
+ ${boost_features})
+ set(install_command
+ ${b2} install)
+ if(EXISTS "${PROJECT_SOURCE_DIR}/src/boost/bootstrap.sh")
+ check_boost_version("${PROJECT_SOURCE_DIR}/src/boost" ${version})
+ set(source_dir
+ SOURCE_DIR "${PROJECT_SOURCE_DIR}/src/boost")
+ elseif(version VERSION_GREATER 1.79)
+ 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 1.79.0)
+ set(boost_sha256 475d589d51a7f8b3ba2ba4eda022b170e562ca3b760ee922c146b6c65856ef39)
+ string(REPLACE "." "_" boost_version_underscore ${boost_version} )
+ string(JOIN " " boost_url
+ https://boostorg.jfrog.io/artifactory/main/release/${boost_version}/source/boost_${boost_version_underscore}.tar.bz2
+ https://download.ceph.com/qa/boost_${boost_version_underscore}.tar.bz2)
+ set(source_dir
+ URL ${boost_url}
+ URL_HASH SHA256=${boost_sha256}
+ DOWNLOAD_NO_PROGRESS 1)
+ 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
+ BUILD_BYPRODUCTS ${Boost_LIBRARIES}
+ INSTALL_COMMAND ${install_command}
+ PREFIX "${root_dir}")
+endfunction()
+
+set(Boost_context_DEPENDENCIES thread chrono system date_time)
+set(Boost_coroutine_DEPENDENCIES context system)
+set(Boost_filesystem_DEPENDENCIES system)
+set(Boost_iostreams_DEPENDENCIES regex)
+set(Boost_thread_DEPENDENCIES chrono system date_time atomic)
+
+# define a macro, so the Boost_* variables are visible by its caller
+macro(build_boost version)
+ # add the Boost::${component} libraries, do this before adding the "Boost"
+ # target, so we can collect "Boost_LIBRARIES" which is then used by
+ # ExternalProject_Add(Boost ...)
+ set(install_dir "${CMAKE_BINARY_DIR}/boost")
+ set(BOOST_ROOT ${install_dir})
+ set(Boost_INCLUDE_DIRS ${install_dir}/include)
+ set(Boost_INCLUDE_DIR ${install_dir}/include)
+ set(Boost_LIBRARY_DIR_RELEASE ${install_dir}/lib)
+ set(Boost_VERSION ${version})
+ # 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})
+ list(APPEND components ${c})
+ if(Boost_${c}_DEPENDENCIES)
+ list(APPEND components ${Boost_${c}_DEPENDENCIES})
+ list(REMOVE_DUPLICATES components)
+ endif()
+ endforeach()
+ set(Boost_BUILD_COMPONENTS ${components})
+ unset(components)
+
+ 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::${c} SHARED IMPORTED)
+ endif()
+ if(c MATCHES "^python")
+ set(c "python${Python3_VERSION_MAJOR}${Python3_VERSION_MINOR}")
+ endif()
+ if(Boost_USE_STATIC_LIBS)
+ set(Boost_${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()
+ unset(buildid)
+ set_target_properties(Boost::${c} PROPERTIES
+ INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}"
+ IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
+ IMPORTED_LOCATION "${Boost_${upper_c}_LIBRARY}")
+ if((c MATCHES "coroutine|context") AND (WITH_BOOST_VALGRIND))
+ set_target_properties(Boost::${c} PROPERTIES
+ INTERFACE_COMPILE_DEFINITIONS "BOOST_USE_VALGRIND")
+ endif()
+ list(APPEND Boost_LIBRARIES ${Boost_${upper_c}_LIBRARY})
+ endforeach()
+ foreach(c ${Boost_BUILD_COMPONENTS})
+ if(Boost_${c}_DEPENDENCIES)
+ foreach(dep ${Boost_${c}_DEPENDENCIES})
+ list(APPEND dependencies Boost::${dep})
+ endforeach()
+ set_target_properties(Boost::${c} PROPERTIES
+ INTERFACE_LINK_LIBRARIES "${dependencies}")
+ unset(dependencies)
+ endif()
+ set(Boost_${c}_FOUND "TRUE")
+ endforeach()
+
+ # download, bootstrap and build Boost
+ do_build_boost(${install_dir} ${version} ${ARGN})
+
+ # add dependencies from Boost::${component} to Boost
+ foreach(c ${Boost_BUILD_COMPONENTS})
+ add_dependencies(Boost::${c} Boost)
+ endforeach()
+
+ # for header-only libraries
+ add_library(Boost::boost INTERFACE IMPORTED)
+ set_target_properties(Boost::boost PROPERTIES
+ INTERFACE_INCLUDE_DIRECTORIES "${Boost_INCLUDE_DIRS}")
+ add_dependencies(Boost::boost Boost)
+ 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(type ${target} TYPE)
+ if(NOT type MATCHES "OBJECT_LIBRARY|STATIC_LIBRARY|SHARED_LIBRARY|EXECUTABLE")
+ return()
+ endif()
+ get_target_property(sources ${target} SOURCES)
+ string(GENEX_STRIP "${sources}" 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} ${ARGN})
+ # can't add dependencies to aliases or imported libraries
+ if (NOT ";${ARGN};" MATCHES ";(ALIAS|IMPORTED);")
+ maybe_add_boost_dep(${target})
+ endif()
+endfunction()
+
+function(add_executable target)
+ _add_executable(${target} ${ARGN})
+ maybe_add_boost_dep(${target})
+endfunction()