CMake one build directory for multiple projects

Question

I´m a beginner user of CMake. My environment has several projects like:

project
  |------ CMakeLists.txt (The main Cmake)
  |------ ProjectA
  |          |--         


        

Answer 1

A) You can do 1 CMakeLists.txt for N projects. When you define a library, you can use it in an executable defined in the cmake (add_executable and target_link_libraries to see).

B) see target_include_directories

C) it seems you can call cmake --target target to generate the Makefile for only one of the target of your cmakelists.txt file.