是否可以在 cmake 中扩展 `include(foo.cmake)` 的内容？

Question

I would like to get the "expanded CMakeLists.txt" that replace each include(foo.cmake) with corresponding content. Don't know if it is possible.

For example, I have CMakeLists.txt with contents:

cmake_minimum_required(VERSION 3.20)
project(hello)
include(hello.cmake)
message(STATUS "***** hello_str is ${hello_str}")

and hello.cmake with contents:

set(hello_str "Hello, World")

I would get an expaned CMakeLists.txt with contents (yeah, just like C/C++'s preprocess)

cmake_minimum_required(VERSION 3.20)
project(hello)
set(hello_str "Hello, World") ##!!
message(STATUS "***** hello_str is ${hello_str}")

Is that possible? And how?

Answer 1

Is that possible?

No. CMake 3.22 (the current at time of writing) and below do not provide this feature.