cmake和带有源的文件夹

Question

-project
--sourсes
--CmakeList.txt

CmakeList.txt to have a repetition:

add_executable(Project1 ${SOURCE_FILES}
    sourсes/File1.cpp sourсes/File1.h
    sourсes/File2.cpp sourсes/File2.h
    ...
)

All sources lie in the folder "sourсes", which is not a subproject, modules, etc.

How to avoid repetition "sourсes" in "add_executable"?

I would like to be able to write:

add_executable(Project1 ${SOURCE_FILES}
    File1.cpp File1.h
    File2.cpp File2.h
    ...
)

---

I found this an example:

add_sources(PREFIX foo
    ROOT_DIR "sources"
        source_one.cpp
        source_two.cpp

    ROOT_DIR "other/sources"
        source_three.cpp
        source_four.cpp
)

add_executable(foo ${foo_SOURCES})

But "add_sources" is unknown.

Answer 1

There is a way to add subdirectories with there own cmakelist.txt.

-project
--CmakeList.txt
--sourсes
---CmakeList.txt

So in your root cmakelist.txt would look like.

add_subdirectory(source)

The file ./source/cmakelist.txt would look like

set(source_path     "${CMAKE_CURRENT_SOURCE_DIR}")
set(sources
     ${source_path}/File1.cpp
     ${source_path}/File1.h
     ${source_path}/File2.h
     ${source_path}/File2.h
     ...
)

add_executable(foo ${sources})

In this way you could add as many subdirectories as you want without polluting the root cmakelist.txt.

Answer 2

You could do something like this:

set(SOURCES
    File1.cpp File1.h
    File2.cpp File2.h
    ...
)

set(SOURCES_ABS "")

foreach(file IN LISTS SOURCES)
    list(APPEND SOURCES_ABS sources/${file})
endforeach()

add_executable(Project1 ${SOURCES_ABS})