Tell CLion to use header include path with prefix

Question

I have a project layout as follows:

• workspace
  • project_a
    • project_a -> .h files here
    • Root -> .cxx files here
  • project_b
    • project_b -> .h files here
    • Root -> .cxx files here

I cannot change the directory layout due to the build system that we're using. Headers are included as

#include "project_a/some_header.h

also from the corresponding .cxx file. I've created a CMakeLists.txt file in the root directory, that adds all my projects via include_directories(project_a project_b), which should be the path prefixed before the one given in the #include. CLion does not manage to find and index any of my files.

Additionally, I have an automatically generated directory of headers of structure

• include
  • lib_a -> .h files
  • lib_b -> .h files

and I've set them up accordingly, but it also does not work.

Does CLion not manage to resolve the prefixed path in the #include or why is this not working?

Answer 1

In CMakeList.txt, which should be located in parent folder, "workspace" folder in that situation, add

set(INCLUDE_DIRECTORIES ./)

If, for example, there is a parent folder, that holds include files:

• workspace
  • includes_folder
    • project_a
      • a.h
  • b.h: #include <project_a/a.h>

Then CMakeList.txt should contain

set(INCLUDE_DIRECTORIES ./)
include_directories(includes_folder)