Failure to enable OpenGL Debug Messages

[jensenr30]

When I changed from sdl2 to sdl2-compat on arch linux, it broke part of my application.

Previously, I was able to enable the Debug flag for OpenGL, but now it doesn't work.

This code used to work with SDL2, but now it fails:

    if (SDL_Init(SDL_INIT_VIDEO) != 0) {
        log_error("SDL_Init ERROR");
        return -1;
    }
        window = SDL_CreateWindow("OpenGL Window", 0,0, get_screen().w, get_screen().h, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
    if (!window) {
        log_error("Failed to make window\n");
        return -1;
    }
// ...
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 6);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_DEBUG_FLAG);
    SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
// ...
        gl_context = SDL_GL_CreateContext(window);
// ...
    if (!gladLoadGLLoader(SDL_GL_GetProcAddress)) {
        printf("GLAD load failed!\n");
        return -1;
    }

// ...
    static int flags; glGetIntegerv(GL_CONTEXT_FLAGS, &flags);
    if (flags & GL_CONTEXT_FLAG_DEBUG_BIT) {
        glEnable(GL_DEBUG_OUTPUT);
        glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
        glDebugMessageCallback(opengl_debug_callback, nullptr);
        glDebugMessageControl(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, nullptr, GL_TRUE);
        glDebugMessageInsert(GL_DEBUG_SOURCE_APPLICATION, GL_DEBUG_TYPE_MARKER, 0,
                             GL_DEBUG_SEVERITY_NOTIFICATION, -1,
                             "OpenGL Debug messages are up and running.");
    } else {
        log_error("Failed to enable OpenGL debug messages!\n");
        return;
    }

My application now prints "Failed to enable OpenGL debug messages!\n" and it didn't do that before I switched to sdl2-compat.

System Information:

OS: Arch Linux x86_64
Kernel: Linux 6.12.10-arch1-1
Uptime: 49 mins
Packages: 1698 (pacman), 2 (flatpak)
Shell: bash 5.2.37
Display (DisplayPort-1): 2560x1440 @ 165 Hz in 27" [External] *
Display (DisplayPort-0): 2560x1440 @ 60 Hz in 27" [External]
WM: i3 (X11)
...
CPU: 13th Gen Intel(R) Core(TM) i5-13600K (20) @ 5.10 GHz
GPU: AMD Radeon RX 6750 XT [Discrete]