添加预处理器定义到cmake外部项目

add preprocessor define to cmake external project

本文关键字：cmake 外部 项目 定义 预处理 处理器 添加      更新时间：2023-10-16

我想使用cmake ExternalProject在windows上构建xerces-c作为静态库。然而，要做到这一点，我需要将XERCES_STATIC_LIBRARY预处理器定义添加到项目中。在linux上，我似乎可以很容易地用一个补丁文件，但我不确定如何在windows上做到这一点。

这是我当前的CMakeLists.txt:

cmake_minimum_required(VERSION 3.0.0 FATAL_ERROR)
PROJECT(xercesc)
SET(TARGET_NAME xercesc)
IF(WIN32)
    # find the msvc version
    if(${MSVC_VERSION} EQUAL 1400)
        SET(VC_PROJ_DIR VC8)
    elseif(${MSVC_VERSION} EQUAL 1500)
        SET(VC_PROJ_DIR VC9)
    elseif(${MSVC_VERSION} EQUAL 1600)
        SET(VC_PROJ_DIR VC10)
    elseif(${MSVC_VERSION} EQUAL 1700)
        SET(VC_PROJ_DIR VC11)
    elseif(${MSVC_VERSION} EQUAL 1800)
        SET(VC_PROJ_DIR VC12)
    endif(${MSVC_VERSION} EQUAL 1400)
    include(ExternalProject)
    ExternalProject_Add(
      ${TARGET_NAME}
      URL ${CMAKE_CURRENT_SOURCE_DIR}/xerces-c-${XERCESC_VERSION}.tar.gz
      DOWNLOAD_DIR ${CMAKE_CURRENT_SOURCE_DIR}/xercesc
      SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/xercesc
      CONFIGURE_COMMAND ""
      BUILD_COMMAND Devenv "${CMAKE_CURRENT_SOURCE_DIR}/xercesc/projects/Win32/${VC_PROJ_DIR}/xerces-all/xerces-all.sln" /build Release
      INSTALL_COMMAND ""
      BUILD_IN_SOURCE 1
    )
ENDIF(WIN32)

从Devenv切换到msbuild命令行是秘笈。它更强大，你可以使用/property:DefineConstants=XERCES_STATIC_LIBRARY定义常量。注意:它会忽略项目文件中定义的其他常量…但你不会傻到在cmake构建的.vcxproj文件中定义常量，你会吗?

无论如何，这里是在windows上构建exercise -c的完整解决方案。注意，对于静态构建，它们在配置名中使用(上帝抛弃的)空格。最简单的解决办法就是用下划线代替它们，继续生活。我使用了查找和替换文本(FART)工具。

此外，我正在做一个DLL运行时库构建，所以我替换了所有的/MT选项。

cmake_minimum_required(VERSION 3.0.0 FATAL_ERROR)
PROJECT(xercesc)
SET(TARGET_NAME xercesc)
IF(WIN32)
    # find the msvc version
    if(${MSVC_VERSION} EQUAL 1400)
        SET(VC_PROJ_DIR VC8)
    elseif(${MSVC_VERSION} EQUAL 1500)
        SET(VC_PROJ_DIR VC9)
    elseif(${MSVC_VERSION} EQUAL 1600)
        SET(VC_PROJ_DIR VC10)
    elseif(${MSVC_VERSION} EQUAL 1700)
        SET(VC_PROJ_DIR VC11)
    elseif(${MSVC_VERSION} EQUAL 1800)
        SET(VC_PROJ_DIR VC12)
    endif(${MSVC_VERSION} EQUAL 1400)
    # Use FART to replace spaces in the project files, ugh. FART requires windows style slashes.
    SET(XERCES_SOLUTION_DIR ${CMAKE_CURRENT_SOURCE_DIR}/xercesc/projects/Win32/${VC_PROJ_DIR}/xerces-all)   
    SET(XERCES_SOLUTION "${XERCES_SOLUTION_DIR}/xerces-all.sln")
    SET(XERCES_SOLUTIONS "${XERCES_SOLUTION_DIR}/*.sln")
    SET(XERCES_PROJECTS "${XERCES_SOLUTION_DIR}/*.vcxproj")
    SET(XERCES_LIB_PROJECT "${XERCES_SOLUTION_DIR}/XercesLib/XercesLib.vcxproj")
    STRING(REGEX REPLACE "/" "\\" XERCES_SOLUTIONS_WIN ${XERCES_SOLUTIONS})
    STRING(REGEX REPLACE "/" "\\" XERCES_PROJECTS_WIN ${XERCES_PROJECTS})
    include(ExternalProject)
    ExternalProject_Add(
        ${TARGET_NAME}
        DEPENDS fart
        URL ${CMAKE_CURRENT_SOURCE_DIR}/xerces-c-${XERCESC_VERSION}.tar.gz
        DOWNLOAD_DIR ${CMAKE_CURRENT_SOURCE_DIR}/xercesc
        SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/xercesc
        PATCH_COMMAND ${FART_DIR}/bin/$<CONFIGURATION>/fart.exe -v -r --svn -- ${XERCES_SOLUTIONS_WIN},${XERCES_PROJECTS_WIN} "Static " Static_ 
        COMMAND ${FART_DIR}/bin/$<CONFIGURATION>/fart.exe -v -r --svn -- ${XERCES_SOLUTIONS_WIN},${XERCES_PROJECTS_WIN} <RuntimeLibrary>MultiThreaded</RuntimeLibrary> <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
        COMMAND ${FART_DIR}/bin/$<CONFIGURATION>/fart.exe -v -r --svn -- ${XERCES_SOLUTIONS_WIN},${XERCES_PROJECTS_WIN} <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary> <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
        CONFIGURE_COMMAND ""
        BUILD_COMMAND msbuild ${XERCES_LIB_PROJECT} /m /property:Configuration=Static_Release,Platform=x64 /property:DefineConstants=XERCES_STATIC_LIBRARY
        COMMAND msbuild ${XERCES_LIB_PROJECT} /m /property:Configuration=Static_Debug,Platform=x64 /property:DefineConstants=XERCES_STATIC_LIBRARY /property:DefineDebug=true
        INSTALL_COMMAND ""
        BUILD_IN_SOURCE 1
    )
    SET(LIBRARIES debug ${CMAKE_CURRENT_SOURCE_DIR}/xercesc/Build/Win64/${VC_PROJ_DIR}/Static_Debug/xerces-c_static_3D.lib)
    SET(LIBRARIES ${LIBRARIES} optimized ${CMAKE_CURRENT_SOURCE_DIR}/xercesc/Build/Win64/${VC_PROJ_DIR}/Static_Release/xerces-c_static_3.lib)
    SET(INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/xercesc/src/)
ELSE(WIN32)
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