CMake无法在Windows 10上遵循符号链接 [英] CMake cannot follow symlinks on Windows 10

问题描述

在我的CMakeLists.txt中，我试图安装一个包含符号链接的文件夹。之前，它在Windows 7上运行良好，但是切换到Windows 10后，它坏了。通过缩小问题的范围，我发现Windows 10上的符号链接可能是根本原因。
我写了一小段cmake来对其进行测试：

In my CMakeLists.txt I am trying to install a folder which contains symlinks. It works well on windows 7 before, but after switching to windows 10 it is broken. By narrowing down the problem I figured out the symlink on windows 10 might be the root cause. I wrote a small piece of cmake to test it:

file(GLOB all_files *)
foreach(each_file ${all_files})
    if (IS_SYMLINK ${each_file})
        get_filename_component(each_file_real_path ${each_file} REALPATH)
    endif()
endforeach()

如果我在带有符号链接的文件夹内的cmake脚本上运行，则 IS_SYMLINK 正常工作，但 get_filename_component（REALPATH）始终返回相同的输入路径，而不是实际路径。

If I run above cmake scripts inside a folder with symlinks inside, the IS_SYMLINK works correctly but get_filename_component(REALPATH) always return the same input path instead of the real path.

有什么办法可以解决或解决它？谢谢！

Is there any way to fix or work around it? Thanks!

推荐答案

请考虑使符号链接更深一层，指向更高一级的目录。如果目录符号链接位于您所指的位置，那么Cmake不会有问题。

Consider making the symlink one level deeper, pointing at a directory one level higher. Cmake won't have a problem if the directory-symlink is up a level from where you're pointing.

这只是一种解决方法。此时cmake仍然存在一个确定的错误。

This is just a workaround. There's still a definitive bug in cmake at this point.

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