cmake add_custom_target保存目录 [英] cmake add_custom_target preserve directory

问题描述

想象一下CMakeFiles.txt中的以下行：

Imagine the following lines in a CMakeFiles.txt:

add_custom_target( target
          cd bin
          COMMAND echo "test" > README
)

设为目标无法按预期工作，因为它不会修改文件 bin / README 而是文件 ./ README 。我发现，为了使CMake修改 bin / README ，我必须编写

make target will not work as expected, as it will not modify the file bin/README but rather the file ./README. I found out that, in order to make CMake modify bin/README, I have to write

COMMAND cd bin&&回声测试 README

这很耗时，并且多次使用时会炸毁CMakeLists。我想要的行为与Shell脚本的行为非常相似。我该如何实现？

which is time consuming and blows the CMakeLists up when used multiple times. I want a behavior that is much like the behaviour of shell scripts. How can I achieve this?

推荐答案

使用 WORKING_DIRECTORY 指令：

add_custom_target( target
      COMMAND echo "test" > README
      WORKING_DIRECTORY bin
)

编辑：相反的COMMAND和WORKING_DIRECTORY订单

EDIT: Reversed COMMAND and WORKING_DIRECTORY order

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