atari: include xbios and gemdos from sysos.inc

git-svn-id: trunk@34662 -

rtl/atari/sysos.inc

@@ -15,6 +15,9 @@
 
  **********************************************************************}
 
+{$include xbios.inc}
+{$include gemdos.inc}
+
 procedure Error2InOutRes(errno: longint);
 begin
   if (errno <= -2) and (errno >= -11) then