sysconf stub cuz crash(?) + some stderrp stuff

src/input_common/drivers/sdl_driver.cpp

@@ -94,6 +94,7 @@ public:
     }
 
     void EnableMotion() {
+#if SDL_VERSION_ATLEAST(2, 26, 4)
         if (!sdl_controller) {
             return;
         }
@@ -176,6 +177,7 @@ public:
         motion.delta_timestamp = time_difference;
         return true;
     }
+#endif
 
     const BasicMotion& GetMotion() const {
         return motion;
@@ -354,6 +356,7 @@ public:
     }
 
     std::string GetControllerName() const {
+#if SDL_VERSION_ATLEAST(2, 26, 4)
         if (sdl_controller) {
             switch (SDL_GetGamepadType(sdl_controller.get())) {
             case SDL_GAMEPAD_TYPE_XBOX360:
@@ -367,6 +370,8 @@ public:
             case SDL_GAMEPAD_TYPE_PS5:
                 return "DualSense Controller";
             default:
+                if (auto const name = SDL_GameControllerName(sdl_controller.get()); name)
+                    return name;
                 break;
             }
             const auto name = SDL_GetGamepadName(sdl_controller.get());
@@ -374,6 +379,7 @@ public:
                 return name;
             }
         }
+#endif
 
         if (sdl_joystick) {
             const auto name = SDL_GetJoystickName(sdl_joystick.get());
@@ -641,6 +647,7 @@ void SDLDriver::CloseJoysticks() {
 }
 
 SDLDriver::SDLDriver(std::string input_engine_) : InputEngine(std::move(input_engine_)) {
+#if SDL_VERSION_ATLEAST(2, 26, 4)
     // Set our application name. Currently passed to DBus by SDL and visible to the user through
     // their desktop environment.
     SDL_SetHint(SDL_HINT_APP_NAME, "Eden");
@@ -686,6 +693,7 @@ SDLDriver::SDLDriver(std::string input_engine_) : InputEngine(std::move(input_en
     // Disable hidapi driver for xbox. Already default on Windows, this causes conflict with native
     // driver on Linux.
     SDL_SetHint(SDL_HINT_JOYSTICK_HIDAPI_XBOX, "0");
+#endif
 
     // If the frontend is going to manage the event loop, then we don't start one here
     start_thread = SDL_WasInit(SDL_INIT_JOYSTICK | SDL_INIT_GAMEPAD) == 0;
@@ -1000,6 +1008,7 @@ ButtonBindings SDLDriver::GetDefaultButtonBinding(
     auto slr_button = SDL_GAMEPAD_BUTTON_LEFT_SHOULDER;
     auto srr_button = SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER;
 
+#if SDL_VERSION_ATLEAST(2, 26, 4)
     if (joystick->IsJoyconLeft()) {
         sll_button = SDL_GAMEPAD_BUTTON_LEFT_PADDLE1;
         srl_button = SDL_GAMEPAD_BUTTON_LEFT_PADDLE2;
@@ -1008,6 +1017,7 @@ ButtonBindings SDLDriver::GetDefaultButtonBinding(
         slr_button = SDL_GAMEPAD_BUTTON_RIGHT_PADDLE2;
         srr_button = SDL_GAMEPAD_BUTTON_RIGHT_PADDLE1;
     }
+#endif
 
     return {
         std::pair{Settings::NativeButton::A, SDL_GAMEPAD_BUTTON_EAST},