CMake子项目中的覆盖选项 [英] Override option in CMake subproject

问题描述

我正在尝试重用我不想更改其来源的第三方项目的CMakeLists.txt(

I'm trying to reuse the CMakeLists.txt of a third-party project whose source I don't want to change (expat, to be exact). I've added the project as a subproject of the top level using add_subdirectory.

这可行，但是现在我想在顶层CMakeLists.txt中设置某些子项目option的值.我该怎么做?

This works but now I would like to set the value of some of the subproject's options in the top level CMakeLists.txt. How do I do this?

推荐答案

请参见简而言之:

SET(SOME_EXPAT_OPTION OFF CACHE BOOL "Use some expat option")

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