如何通过vcpkg降级Python3包并解决CMake检测异常

• 已通过vcpkg安装Python 3.10，需降级至3.7并确保boost等依赖包同步适配
• 此前手动指定Python路径的方式无法影响依赖包，代码如下：

  set(Python_LIBRARY "c:/python37/libs/python37.lib")
  set(Python_INCLUDE_DIR "c:/python37/include/")
  

按照方案在CMake文件所在项目目录创建vcpkg.json：

{
    "name": "confstruct",
    "version-string": "1.0.0",
    "builtin-baseline": "98f8d00e89fb6a8019c2045cfa1edbe9d92d3405",
    "overrides": [
        { "name": "python3", "version": "3.7.4" }
    ],
    "dependencies": [
        { "name": "python3" }
    ]
}

其中：

• confstruct取自CMake文件中的project( confstruct )
• version-string为自定义内容
• builtin-baseline是vcpkg提示缺失时推荐的值，不清楚该值是否为vcpkg的Git版本，也不确定能否用"recent"这类值替代

CMake相关配置代码：

find_package(Python COMPONENTS Development REQUIRED)
message(STATUS "Python:")
message(STATUS "    Python_INCLUDE_DIRS: ${Python_INCLUDE_DIRS}")
message(STATUS "    Python_LIBRARIES: ${Python_LIBRARIES}")
message(STATUS "    Python_LIBRARY_DIRS: ${Python_LIBRARY_DIRS}")

使用Python 3.10时CMake运行正常，但配置版本覆盖后，尽管已安装python37.lib，仍出现如下CMake错误：

CMake Error at C:/prog/cmake-gui/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
Could NOT find Python (missing: Development Development.Module
Development.Embed) (found version "2.7")
Call Stack (most recent call first):
C:/prog/cmake-gui/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
C:/prog/cmake-gui/share/cmake-3.22/Modules/FindPython.cmake:561 (find_package_handle_standard_args)
C:/prj-external-libs/vcpkg/scripts/buildsystems/vcpkg.cmake:824 (_find_package)
CMakeLists.txt:34 (find_package)

如何避免CMake找到python37_d.lib？

内容的提问来源于stack exchange，提问作者Zohar Levi