Another buildfix attempt

CMakeLists.txt

@@ -1503,6 +1503,9 @@ elseif(WIN32)
 	# Don't care about SDL.
 	set(TargetBin PPSSPPWindows)
 elseif(LIBRETRO)
+elseif(LOONGARCH64_DEVICE)
+	# Cross-compiling for loongarch64 currently only builds PPSSPPHeadless, and there's
+	# no SDL3 available for that target, so skip the desktop SDL frontend entirely.
 else()
 	if(GOLD)
 		set(TargetBin PPSSPPGold)

Qt/QtMain.cpp

@@ -29,8 +29,8 @@
 
 #ifdef SDL
 #include "SDL/SDLJoystick.h"
-#include "SDL_audio.h"
-#include "SDL_keyboard.h"
+#include <SDL3/SDL_audio.h>
+#include <SDL3/SDL_keyboard.h>
 #endif
 
 #include "Common/Audio/AudioBackend.h"