CMake include problem

[Masalan]

Hello. Working on Windows. Im trying to dive in gamedev, but this thing is blocking me.
Im trying to include "SFML/Graphics.hpp" in one of my header files, located in src folder. Main.cpp is located in the same directory.

#pragma once

#include <SFML/Graphics.hpp>

class Window
{
public:
    Window(const std::string& window_name);

    void update();

    void beginDraw();
    void Draw(const sf::Drawable& drawable);
    void endDraw();

    bool isOpen() const;

private:
    sf::RenderWindow window;
}
 

This is the trouble header. When compiling it says that it cant find SFML/Graphics.

CMakeLists.txt, located out of src folder.

cmake_minimum_required(VERSION 3.20.3)

project(SNAKE)

add_subdirectory(src)


set(SFML_DIR "c:\\SFML\\lib\\cmake\\SFML\\")
find_package(SFML 2.5 COMPONENTS graphics audio REQUIRED)
target_link_libraries(${PROJECT_NAME} sfml-graphics sfml-audio)
 

window.hpp is located in src folder. CMakeLists.txt in src folder:

add_executable(${PROJECT_NAME} main.cpp)


add_library(window window.cpp window.hpp)


set(LIBRARIES window)
target_link_libraries(${PROJECT_NAME} ${LIBRARIES})
 

Error log:

In file included from E:\GameDev\SFML\Snake\src\window.cpp:1:
E:\GameDev\SFML\Snake\src\window.hpp:3:10: fatal error: SFML/Graphics.hpp: No such file or directory
 #include <SFML/Graphics.hpp>
 

Whats interesting, main.cpp located in the same directory has no trouble including "SFML/Graphics".
Im new to cmake and dont know how things work. Can someone help me to make "window.hpp" include "SFML/Graphics.hpp" correctly?

[nogoodname]

You would need to add this to your CMake script.

target_link_libraries("window" PUBLIC
    "sfml-graphics"
    "sfml-audio"
)
 

[Masalan]

You would need to add this to your CMake script.

target_link_libraries("window" PUBLIC
    "sfml-graphics"
    "sfml-audio"
)
 

Thanks for the reply.

I have solved it by adding add_compile_options(-I c:/SFML/include/) before add_subdirectory(src)

Your solution is good, but what if I have much more libs? Is there any flexible solution than adding sfml libs to every lib I wrote on my own?

[eXpl0it3r]

The better solution is to put find_package before the add_subdirectory, so once CMake descends into the sub-directory, SFML is already found and available.

[Masalan]

Thank you, I'll definetely try it. Thanks a lot for help.