SDL: Fix platform

From ff5f98b87b08cf58b05555372782718d5ea5f936 Mon Sep 17 00:00:00 2001
From: Ivan Epifanov <[EMAIL REDACTED]>
Date: Wed, 23 Dec 2020 19:00:16 +0300
Subject: [PATCH] Fix platform

---
 include/SDL_platform.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/SDL_platform.h b/include/SDL_platform.h
index a0789fe4a..428e42712 100644
--- a/include/SDL_platform.h
+++ b/include/SDL_platform.h
@@ -175,6 +175,9 @@
 #define __SDL_NOGETPROCADDR__
 #endif
 
+#if defined(__vita__)
+#define __VITA__ 1
+#endif
 
 #include "begin_code.h"
 /* Set up for C function definitions, even when using C++ */