SDL: Fixed building SDL_dynapi.c without stdio support

SDL Commits
1 
From 432ee7d8ad389cbee82964f18e8d7ab62b8ac097 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Wed, 22 Sep 2021 09:29:21 -0700
Subject: [PATCH] Fixed building SDL_dynapi.c without stdio support

---
 src/dynapi/SDL_dynapi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dynapi/SDL_dynapi.c b/src/dynapi/SDL_dynapi.c
index 8fc5431b4c..013dbc90de 100644
--- a/src/dynapi/SDL_dynapi.c
+++ b/src/dynapi/SDL_dynapi.c
@@ -270,7 +270,7 @@ static void dynapi_warn(const char *msg)
     /* SDL_ShowSimpleMessageBox() is a too heavy for here. */
     #if defined(WIN32) || defined(_WIN32) || defined(__CYGWIN__)
     MessageBoxA(NULL, msg, caption, MB_OK | MB_ICONERROR);
-    #else
+    #elif defined(HAVE_STDIO_H)
     fprintf(stderr, "\n\n%s\n%s\n\n", caption, msg);
     fflush(stderr);
     #endif