对于CMake的“安装”命令，COMPONENT参数可以做什么？ [英] For CMake's "install" command, what can the COMPONENT argument do?

问题描述

首先，我是CMake的新人。我不知道 install 命令的参数 COMPONENT 是什么意思，我不明白CMake文档这个。有人可以更详细地解释一下吗？

First of all, I'm new to CMake. I don't know what the argument COMPONENT of the install command means and I don't understand the CMake documentation for this. Can someone explain it in more detail? It will be best if you give me an example.

推荐答案

您可以将安装目标分组到组件中，例如docs libs，runtime等。

You can group installation targets into components, for example "docs", "libs", "runtime", etc.

add_library(libone libone.c)
add_executable(one main1.c)
install(TARGETS libone one DESTINATION /somedir COMPONENT comp_one)

add_library(libtwo libtwo.c)
add_executable(two main2.c)
install(TARGETS libtwo two DESTINATION /somedir COMPONENT comp_two)

这样可以运行 -DCOMPONENT = comp_one -P {your_build_dir} /cmake_install.cmake 只安装libone库和一个可执行文件。当您发出 make install 时，会安装所有组件。

This makes it possible to run cmake -DCOMPONENT=comp_one -P {your_build_dir}/cmake_install.cmake to install only libone library and one executable. When you issue make install all components are installed.

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