void O65SetOption (O65Desc* D, unsigned Type, const void* Data, unsigned DataLen);
/* Set an o65 header option */
-void O65SetOS (O65Desc* D, unsigned OS);
+void O65SetOS (O65Desc* D, unsigned OS, unsigned Version, unsigned Id);
/* Set an option describing the target operating system */
ExtSym* O65GetImport (O65Desc* D, const char* Ident);