如何使用（CMake SuperBuild Boost Windows）正確下載 Boost？

Question

我正在嘗試通過ExternalProject_Add安裝 boost，但出現錯誤。

問題錯誤是什么意思，我該如何解決？

這是我收到的錯誤消息：

 Performing update step for 'boost-external'
  No patch step for 'boost-external'
  Performing configure step for 'boost-external'
  'cp' is not recognized as an internal or external command,
  operable program or batch file.
C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\Msbuild\Microsoft\VC\v160\Microsoft.CppCommon.targets(241,5): e
rror MSB8066: Custom build for 'C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\build\CMakeFiles\7a303cde471
9f69085ebded4413f3304\boost-external-mkdir.rule;C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\build\CMakeF
iles\7a303cde4719f69085ebded4413f3304\boost-external-download.rule;C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02
_Boost\build\CMakeFiles\7a303cde4719f69085ebded4413f3304\boost-external-update.rule;C:\IBOIS57\_Code\Software\CPP\CMAKE\super
_build\Example_02_Boost\build\CMakeFiles\7a303cde4719f69085ebded4413f3304\boost-external-patch.rule;C:\IBOIS57\_Code\Software
\CPP\CMAKE\super_build\Example_02_Boost\build\CMakeFiles\7a303cde4719f69085ebded4413f3304\boost-external-configure.rule;C:\IB
OIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\build\CMakeFiles\7a303cde4719f69085ebded4413f3304\boost-external-
build.rule;C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\build\CMakeFiles\7a303cde4719f69085ebded4413f3304
\boost-external-install.rule;C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\build\CMakeFiles\1a2a6d9ea64ba5
92f97cd191c1d5acb1\boost-external-complete.rule;C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\build\CMakeF
iles\a70b522e33d20f4a0fb02fd1b3fdb173\boost-external.rule;C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\CM
akeLists.txt' exited with code 9009. [C:\IBOIS57\_Code\Software\CPP\CMAKE\super_build\Example_02_Boost\build\boost-external.v
cxproj]

這是屏幕截圖：

[![在此處輸入圖片描述][1]][1] [1]：https://i.stack.imgur.com/HyrKM.jpg

這是我完整的 CMakeLists.txt

###############################################################################
#cmake + project name
###############################################################################
cmake_minimum_required(VERSION 3.10)
project(boostdemo)

###############################################################################
#create executable
###############################################################################
add_executable(boostdemo ${PROJECT_SOURCE_DIR}/main.cpp)

###############################################################################
#boost
###############################################################################
#https://github.com/BBO-repo/cpp-boost-cmake-superbuild
set( Boost_Bootstrap_Command ${CMAKE_BINARY_DIR}/boost-download/src/boost-external/bootstrap.sh && cp ${CMAKE_BINARY_DIR}/boost-download/src/boost-external-build/b2 ${CMAKE_BINARY_DIR}/boost-download/src/boost-external/)
set( Boost_b2_Command cd ${CMAKE_BINARY_DIR}/boost-download/src/boost-external && ./b2 )

include(ExternalProject)
ExternalProject_Add(
  boost-external #library name that will be used for linking in the executable
  GIT_REPOSITORY https://github.com/boostorg/boost.git
  GIT_TAG boost-1.79.0
  PREFIX boost-download
  CONFIGURE_COMMAND ${Boost_Bootstrap_Command}
  BUILD_COMMAND  ${Boost_b2_Command} install
    --without-python
    --without-mpi
    --disable-icu
    --prefix=${CMAKE_SOURCE_DIR}/thirdparty/boost/
    --threading=single,multi
    --link=shared
    --variant=release
    -j12
  INSTALL_COMMAND ""
)

set(Boost_LIBS ${CMAKE_SOURCE_DIR}/thirdparty/boost/lib/${CMAKE_STATIC_LIBRARY_PREFIX}boost_chrono${CMAKE_SHARED_LIBRARY_SUFFIX})
set(Boost_INCLUDE_DIR ${CMAKE_SOURCE_DIR}/thirdparty/boost/include/)

###############################################################################
#link boost
###############################################################################

add_dependencies(boostdemo boost-external)
include_directories(boostdemo ${Boost_INCLUDE_DIR})
target_link_libraries(boostdemo ${Boost_LIBS})

Answer 1

如果它對某人有幫助，下面是我用來通過ExternalProject_Add獲得提升的 cmake 片段。 我當時只關注標題部分，所以它可能不完整。

我對此從未完全滿意，最后轉而使用 vcpkg 獲取我們所有的第三方依賴項。 從那以后，我一直很開心，尤其是在提升方面。 事實上，我剛剛從我們的倉庫中刪除了這個文件。 所以我強烈建議查看 vcpkg （或柯南或...）而不是ExternalProject_Add 。

if(WIN32)
    set( Boost_Bootstrap_Command bootstrap.bat )
    set( Boost_b2_Command b2.exe )
    set( Boost_version_dir /boost-1_77 )
else()
    set( Boost_Bootstrap_Command ./bootstrap.sh )
    set( Boost_b2_Command ./b2 )
    set( Boost_version_dir "")
endif()

ExternalProject_Add(git_boost
    URL https://boostorg.jfrog.io/artifactory/main/release/1.77.0/source/boost_1_77_0.tar.gz
    BUILD_IN_SOURCE 1
    CONFIGURE_COMMAND ${Boost_Bootstrap_Command}
    BUILD_COMMAND ""
    INSTALL_COMMAND ${Boost_b2_Command} --with-headers --with-math install --prefix=${CMAKE_CURRENT_BINARY_DIR}/boost
    TEST_COMMAND ""
)

add_library(ours_boost INTERFACE)
add_library(ours::boost ALIAS ours_boost)

target_include_directories(ours_boost INTERFACE ${CMAKE_CURRENT_BINARY_DIR}/boost/include${Boost_version_dir})
message(${CMAKE_CURRENT_BINARY_DIR}/boost/include${Boost_version_dir})
add_dependencies(ours_boost git_boost)