CLion does not find libraries included via add_subdirectory()
I have a CMake-based project that uses FMT library, which I include in CMakeList.txt like this:
# fmt (FMT)add_subdirectory(../../../../local/libs/external/fmt/9.1.0 build/projects/libs/fmt)
Then in a source file I have:
#include <fmt/format.h>#include <fmt/ostream.h>
And CLion puts “fmt” in red - and says it “Cannot find directory 'fmt' in search paths:”.
However, the program compiles and links properly. So the CMakeList.txt is fine (as it compiles), but still CLion does not find the library.
(If I add “include” folder of the FMT to include_directories then it works, but I use add_subdirectory exactly for the purpose of not adding library sources manually. And works for compilation without adding to include_directories - as one would expect).
How to solve it for CLion?
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Ok, I found a solution (which is a bit my fault).
You need to add
target_link_libraries(global PRIVATE fmt::fmt)To the target that you use in CLion. If the library is included with
add_subdirectorybut it not used in linking, then CLion doesn't see it.