SDL2 libSDL2_image.so: undefined reference to ... [gcc, c, SDL2] : I'm using Kubuntu 18.04

So i recently tried to use SDL2, i wanted to create a simple window showing a few pictures following a tutorial but i was unable to compile the example code.

When i try to compile the code i get:

    /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libSDL2_image.so: undefined reference to `SDL_ceilf'
    /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libSDL2_image.so: undefined reference to `SDL_acosf'
    /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libSDL2_image.so: undefined reference to `SDL_floorf'
    /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libSDL2_image.so: undefined reference to `SDL_fabsf'
    /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libSDL2_image.so: undefined reference to `SDL_LoadFile_RW'
    /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libSDL2_image.so: undefined reference to `SDL_fmodf'
    /usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/libSDL2_image.so: undefined reference to `SDL_atan2f'
    collect2: error: ld returned 1 exit status

Command used: 

    gcc SDLProject.c -o SDLProject `sdl2-config --cflags --libs` -lSDL2_gfx -lSDL2_image

Command used to install SDL2 libs:

    sudo apt install libsdl2-dev libsdl2-gfx-dev libsdl2-image-dev libsdl2-ttf-dev libsdl2-mixer-dev

Installed packages:

    sudo apt list --installed | grep "sdl"
    
    WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
    
    libsdl2-2.0-0/bionic-updates,now 2.0.8+dfsg1-1ubuntu1.18.04.3 amd64 [installed]
    libsdl2-dev/bionic-updates,now 2.0.8+dfsg1-1ubuntu1.18.04.3 amd64 [installed]
    libsdl2-gfx-1.0-0/bionic,now 1.0.4+dfsg-1 amd64 [installed,automatic]
    libsdl2-gfx-dev/bionic,now 1.0.4+dfsg-1 amd64 [installed]
    libsdl2-image-2.0-0/bionic,now 2.0.3+dfsg1-1 amd64 [installed,automatic]
    libsdl2-image-dev/bionic,now 2.0.3+dfsg1-1 amd64 [installed]
    libsdl2-mixer-2.0-0/bionic,now 2.0.2+dfsg1-2 amd64 [installed,automatic]
    libsdl2-mixer-dev/bionic,now 2.0.2+dfsg1-2 amd64 [installed]
    libsdl2-ttf-2.0-0/bionic,now 2.0.14+dfsg1-2 amd64 [installed,automatic]
    libsdl2-ttf-dev/bionic,now 2.0.14+dfsg1-2 amd64 [installed]


I already tried deleting everything that is related to SDL / SDL2 and only reinstalling the ones the project uses (SDL2, gfx and image) and **i found out that this error only happens when i try to inlude the SDL_image.h and I'm able to run other exmaple codes that does not use it.**



I do not think that the error is related to the code itself but:

    #include <SDL2/SDL.h>
    #include <SDL2/SDL_image.h>
    #include <SDL2/SDL2_gfxPrimitives.h>
    #include <stdlib.h>
     
    typedef enum Babu {
        VKiraly, VVezer, VBastya, VFuto, VHuszar, VGyalog,
        SKiraly, SVezer, SSastya, SFuto, SHuszar, SGyalog
    } Babu;
     
    enum { MERET = 52 };
     

    void babu_rajzol(SDL_Renderer *renderer, SDL_Texture *babuk, Babu melyik, int x, int y) {

        SDL_Rect src = { (melyik % 6) * 62 + 10, (melyik / 6) * 60 + 10, MERET, MERET };
        SDL_Rect dest = { x, y, MERET, MERET };
        SDL_RenderCopy(renderer, babuk, &src, &dest);
    }
     
     
    void sdl_init(int szeles, int magas, SDL_Window **pwindow, SDL_Renderer **prenderer) {
        if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
            SDL_Log("Nem indithato az SDL: %s", SDL_GetError());
            exit(1);
        }
        SDL_Window *window = SDL_CreateWindow("SDL peldaprogram", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, szeles, magas, 0);
        if (window == NULL) {
            SDL_Log("Nem hozhato letre az ablak: %s", SDL_GetError());
            exit(1);
        }
        SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_SOFTWARE);
        if (renderer == NULL) {
            SDL_Log("Nem hozhato letre a megjelenito: %s", SDL_GetError());
            exit(1);
        }
        SDL_RenderClear(renderer);
     
        *pwindow = window;
        *prenderer = renderer;
    }
     
     
    int main(int argc, char *argv[]) {
        SDL_Window *window;
        SDL_Renderer *renderer;
        sdl_init(320, 200, &window, &renderer);
     
        SDL_Texture *babuk = IMG_LoadTexture(renderer, "pieces.png");
        if (babuk == NULL) {
            SDL_Log("Nem nyithato meg a kepfajl: %s", IMG_GetError());
            exit(1);
        }
     
        boxRGBA(renderer, 0, 0, 319, 199, 0x90, 0xE0, 0x90, 0xFF);
        babu_rajzol(renderer, babuk, VKiraly, 82, 74);
        babu_rajzol(renderer, babuk, SGyalog, 82+MERET, 74);
        babu_rajzol(renderer, babuk, VHuszar, 82+2*MERET, 74);
        SDL_RenderPresent(renderer);
     
        SDL_DestroyTexture(babuk);
     
        SDL_Event event;
        while (SDL_WaitEvent(&event) && event.type != SDL_QUIT) {
        }
     
        SDL_Quit();
        return 0;
    }

