SDL: Fixed prototype definition

From dda474504fe5a4c14c419cbbbe9c87a59dbed4cc Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Thu, 6 Jul 2023 13:00:03 -0700
Subject: [PATCH] Fixed prototype definition

---
 include/SDL3/SDL_clipboard.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/SDL3/SDL_clipboard.h b/include/SDL3/SDL_clipboard.h
index e07bf31f8f09..454b47491d63 100644
--- a/include/SDL3/SDL_clipboard.h
+++ b/include/SDL3/SDL_clipboard.h
@@ -201,7 +201,7 @@ extern DECLSPEC int SDLCALL SDL_SetClipboardData(SDL_ClipboardDataCallback callb
  *
  * \sa SDL_SetClipboardData
  */
-extern DECLSPEC int SDLCALL SDL_ClearClipboardData();
+extern DECLSPEC int SDLCALL SDL_ClearClipboardData(void);
 
 /**
  * Get the data from clipboard for a given mime type