1 files changed, 292 insertions, 0 deletions
diff --git a/cmake/modules/BuildBoost.cmake b/cmake/modules/BuildBoost.cmake
new file mode 100644
index 000000000..f84428921
--- /dev/null
+++ b/cmake/modules/BuildBoost.cmake
@@ -0,0 +1,292 @@
+# 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)
+
+# CMAKE_CURRENT_FUNCTION_LIST_DIR is introduced by cmake 3.17, but ubuntu comes with 3.16
+set(_build_boost_list_dir "${CMAKE_CURRENT_LIST_DIR}")
+
+function(check_boost_version source_dir expected_version)
+  set(version_hpp "${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 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}")
+
+  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}")
+  # 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()
+  # suppress all debugging levels for b2
+  list(APPEND b2 -d0)
+
+  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()
+
+  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}"
+    " ;\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
+    ${b2} install)
+  set(boost_root_dir "${CMAKE_BINARY_DIR}/boost")
+  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 1.73)
+    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 1.73.0)
+    set(boost_sha256 4eb3b8d442b426dc35346235c8733b5ae35ba431690e38c6a8263dce9fcbb402)
+    string(REPLACE "." "_" boost_version_underscore ${boost_version} )
+    set(boost_url 
+      https://boostorg.jfrog.io/artifactory/main/release/${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 ${boost_url}
+      URL_HASH SHA256=${boost_sha256}
+      DOWNLOAD_NO_PROGRESS 1)
+  endif()
+  find_program(PATCH_EXECUTABLE patch)
+  # build all components in a single shot
+  include(ExternalProject)
+  ExternalProject_Add(Boost
+    ${source_dir}
+    PATCH_COMMAND ${PATCH_EXECUTABLE} -p3 -i ${_build_boost_list_dir}/boost-python-use-public-api-for-filename.patch
+    CONFIGURE_COMMAND CC=${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()
+
+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)
+
+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)
+  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::${c} SHARED IMPORTED)
+    endif()
+    add_dependencies(Boost::${c} Boost)
+    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()
+
+  # 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()