SQStream should have a virtual dtor, to shut up warnings and probably for some good reason but i dont know

include/sqstdio.h

@@ -7,6 +7,7 @@
 #define SQSTD_STREAM_TYPE_TAG 0x80000000
 
 struct SQStream {
+    virtual ~SQStream() {}
     virtual SQInteger Read(void *buffer, SQInteger size) = 0;
     virtual SQInteger Write(void *buffer, SQInteger size) = 0;
     virtual SQInteger Flush() = 0;