fix SDL_atoi() fixes https://github.com/libsdl-org/SDL/issues/4811
diff --git a/src/stdlib/SDL_string.c b/src/stdlib/SDL_string.c
index ab6e947..67b376e 100644
--- a/src/stdlib/SDL_string.c
+++ b/src/stdlib/SDL_string.c
@@ -932,7 +932,7 @@ int SDL_atoi(const char *string)
#ifdef HAVE_ATOI
return atoi(string);
#else
- return SDL_strtol(string, NULL, 0);
+ return SDL_strtol(string, NULL, 10);
#endif /* HAVE_ATOI */
}