CMake + Qt Creator: Add header files to project files

Question

If I have .h and .cpp files in the directory src, where the .cpp files include the .h files, using these commands in CMake:

aux_source_directory(src SRC_LIST)
add_executable(${PROJECT_NAME} ${SRC_LIST})

And opening that CMake file in Qt Creator, gets all the files (sources + headers) in the list of project files (the file tree on the left by default).

Now, on the other hand, if I put all the .h files in a directory include, and use this:

include_directories(include)
aux_source_directory(src SRC_LIST)
add_executable(${PROJECT_NAME} ${SRC_LIST})

The header files disappear from the project files!

How can I keep the header files in that directory, and still have them listed in Qt Creator's project files?

Answer 1

I add my header files always explicit to avoid any surprise. But on MacOS using QtCreator 4.2.0 and cmake 3.7.1 I can't reproduce your issue.

However I recommend to use following structure to know which files are within project and to trigger update of cmake's data during update of CMakeLists.txt.

In project/CMakeLists.txt:

add_subdirectory(src)
include_directory(include)
add_executable(foo ${SRC_LIST})

In project/src/CMakeLists.txt:

set(SRC_LIST
    ${SRC_LIST}
    ${CMAKE_CURRENT_SOURCE_DIR}/a.cpp
    ${CMAKE_CURRENT_SOURCE_DIR}/b.cpp
    PARENT_SCOPE
)