From 552614067235d76f005cd23a5a70b6f71f6607a7 Mon Sep 17 00:00:00 2001
From: Gleb Mazovetskiy <glex.spb@gmail.com>
Date: Mon, 10 Feb 2020 22:30:58 +0000
Subject: [PATCH] Fix SDL_PrefPath on SDL1 for non-Amiga

snprintf was used incorrectly - its arguments cannot overlap
---
 SourceS/sdl2_to_1_2_backports.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/SourceS/sdl2_to_1_2_backports.h b/SourceS/sdl2_to_1_2_backports.h
index 2e43bfdae..249f200d0 100644
--- a/SourceS/sdl2_to_1_2_backports.h
+++ b/SourceS/sdl2_to_1_2_backports.h
@@ -881,7 +881,12 @@ inline char *SDL_GetPrefPath(const char *org, const char *app)
 		return NULL;
 	}
 
-	SDL_snprintf(retval, len, "%s/", retval);
+	// Append trailing /
+	size_t final_len = SDL_strlen(retval);
+	if (final_len + 1 < len) {
+		retval[final_len++] = '/';
+		retval[final_len] = '\0';
+	}
 
 	return retval;
 }