Search code examples
c++cmakelibrariesclionshared

CMake - Shared library - Missing IDE support

I am working on a project structure that is published at:

https://github.com/veritacodex/IB.Cpp.Api.Client

You probably have seen a similar structure where:

  • There is a folder for a library, the one that I am trying to build.
  • A third-party folder where I leave any external .so
  • A playground/examples folder where I showcase users on how to use the library.

I managed to get all CMakeLists.txt files to work. It compiles and makes libraries nicely.

My problem comes when I try to use any object which is part of a shared third-party library. The IDE is not able to resolve any symbols.

I tried with Clion and VSCode and couldn't get any intellisense support. Am I missing anything in the way I link the external libraries?

These are the lines that link the third-party library:

INCLUDE_DIRECTORIES( ${CMAKE_SOURCE_DIR}/Library/inc)
SET(BUILD_SHARED_LIBS YES)

ADD_LIBRARY(IbApiClient IbClient.cpp)
TARGET_LINK_DIRECTORIES(IbApiClient PUBLIC ${CMAKE_SOURCE_DIR}/Third-Party/tws-api)
TARGET_LINK_LIBRARIES(IbApiClient PUBLIC libTwsSocketClient.so)
Solution

  • I found a solution.

    One way to make the IDE aware of the headers folder is by using the following:

    FILE(GLOB TWSAPI_SRC CONFIGURE_DEPENDS
        "${TWSAPI}/*.h"
        "${TWSAPI}/*.cpp"
)

ADD_LIBRARY(IbApiClient IbClient.cpp ${TWSAPI_SRC})

    Where:

    • TWSAPI_SRC is just the name I gave to the variable.
    • TWSAPI is the folder where the shared library source resides.

    Full file at https://github.com/veritacodex/IB.Cpp.Api.Client/blob/main/library/src/CMakeLists.txt

    Clion can resolve all symbols if set up this way.