“$ {CMAKE_CURRENT_SOURCE_DIR}”之间的区别是什么？和“。”。在INCLUDE_DIRECTORIES？ [英] What is the difference between "${CMAKE_CURRENT_SOURCE_DIR}" and "." in INCLUDE_DIRECTORIES?

问题描述

我应该使用

INCLUDE_DIRECTORIES(
    .
)

或

INCLUDE_DIRECTORIES(
    ${CMAKE_CURRENT_SOURCE_DIR}
)

有什么区别？我见过大多数。在现有的代码中，但是在互联网上搜索一个点是很困难的...

What is the difference, if any? I've seen mostly "." in existing code, but searching for a dot on the Internet is kind of difficult ...

推荐答案

输出，因为CMake跟踪当前目录并替换。的出现。与$ {CMAKE_CURRENT_SOURCE_DIR} /。。唯一的区别是。 variant有额外的路径组件/。

Both uses generate nearly the same output, since CMake tracks the current directory and replaces the occurrence of "." with "${CMAKE_CURRENT_SOURCE_DIR}/.". The only difference is that the "." variant has the extra path component "/." appended.

无论您选择哪一个都是这里的品味问题。

Whichever you choose is a matter of taste here.

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