Record dynamic dependencies in .note.dlopen elf section

src/core/linux/SDL_dbus.c

@@ -24,12 +24,20 @@
 
 #ifdef SDL_USE_LIBDBUS
 // we never link directly to libdbus.
-static const char *dbus_library = "libdbus-1.so.3";
+#define SDL_DRIVER_DBUS_DYNAMIC "libdbus-1.so.3"
+static const char *dbus_library = SDL_DRIVER_DBUS_DYNAMIC;
 static SDL_SharedObject *dbus_handle = NULL;
 static char *inhibit_handle = NULL;
 static unsigned int screensaver_cookie = 0;
 static SDL_DBusContext dbus;
 
+SDL_ELF_NOTE_DLOPEN(
+    "core-libdbus",
+    "Support for D-Bus IPC",
+    SDL_ELF_NOTE_DLOPEN_PRIORITY_RECOMMENDED,
+    SDL_DRIVER_DBUS_DYNAMIC
+);
+
 static bool LoadDBUSSyms(void)
 {
 #define SDL_DBUS_SYM2_OPTIONAL(TYPE, x, y)                   \

src/core/linux/SDL_udev.c

@@ -36,7 +36,22 @@
 #include "SDL_evdev_capabilities.h"
 #include "../unix/SDL_poll.h"
 
-static const char *SDL_UDEV_LIBS[] = { "libudev.so.1", "libudev.so.0" };
+#define SDL_UDEV_FALLBACK_LIBS "libudev.so.1", "libudev.so.0" 
+
+static const char *SDL_UDEV_LIBS[] = { SDL_UDEV_FALLBACK_LIBS };
+
+#ifdef SDL_UDEV_DYNAMIC
+#define SDL_UDEV_DLNOTE_LIBS SDL_UDEV_DYNAMIC, SDL_UDEV_FALLBACK_LIBS
+#else
+#define SDL_UDEV_DLNOTE_LIBS SDL_UDEV_FALLBACK_LIBS
+#endif
+
+SDL_ELF_NOTE_DLOPEN(
+    "events-udev",
+    "Support for events through libudev",
+    SDL_ELF_NOTE_DLOPEN_PRIORITY_RECOMMENDED,
+    SDL_UDEV_DLNOTE_LIBS
+);
 
 static SDL_UDEV_PrivateData *_this = NULL;