Cmake - How to build a project separated in different subfolders - cmake

Question

I am trying to build a big project with CMake but I struggle on how to write the CMakeList.txt file.
My project is separated in different folders each containing a set of .hpp and .cpp files more or less related together as follows:
root
- memory
-- Memory.cpp
-- Memory.hpp
-- MemoryManager.hpp
-- MemoryManager.cpp
-- CMakeLists.txt
- tools
-- Array.cpp
-- Array.hpp
-- CMakeLists.txt
- main.cpp
- CMakeLists.txt
I would like to build all the files together to an executable. I don't want to build libraries in each subfolder as I don't see any good reason to do it.
I would like also to avoid putting a single big list of all source files in the ADD_EXECUTABLE command of the CMakeLists.txt file located at the root of the project.
Do you have any idea of how to set this up correctly ?
Cheers,
M.

Answer 1

You can use the GLOB function, such as:
file (GLOB _my_sources RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
memory/*.cpp tools/*.cpp main.cpp)
add_executable (myprogbin ${_my_sources})
set_target_properties (myprogbin PROPERTIES OUTPUT_NAME myprog)
See http://cmake.org/cmake/help/cmake-2-8-docs.html#command:file for reference