From c1120a7510eac16c09b187d4e0d245ad63478a54 Mon Sep 17 00:00:00 2001
From: Martin Gerhardy <martin.gerhardy@gmail.com>
Date: Mon, 23 May 2022 20:12:35 +0200
Subject: [PATCH] UTIL: SDL_isalnum is not available in all supported sdl
 versions

---
 src/modules/util/Base64.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/modules/util/Base64.cpp b/src/modules/util/Base64.cpp
index 016231c7b..499b05160 100644
--- a/src/modules/util/Base64.cpp
+++ b/src/modules/util/Base64.cpp
@@ -3,12 +3,12 @@
  */
 
 #include "Base64.h"
-#include "SDL_stdinc.h"
 #include "core/ArrayLength.h"
 #include "core/Common.h"
 #include "core/Log.h"
 #include "io/MemoryReadStream.h"
 #include "io/Stream.h"
+#include <ctype.h>
 
 namespace util {
 namespace Base64 {
@@ -48,7 +48,7 @@ static CORE_FORCE_INLINE bool decode0(uint8_t src[4], io::WriteStream &out, int
 }
 
 static CORE_FORCE_INLINE bool validbyte(const uint8_t c) {
-	return c == '+' || c == '/' || SDL_isalnum(c);
+	return c == '+' || c == '/' || isalnum(c);
 }
 
 } // namespace _priv