[fpc-pascal] sizeof(Enumerated type in Delphi 5) <> sizeof(The same type in FPC)

[Dennis Poon]

In Delphi 5,
 var
  G  : TAutoRefreshFlag;

//where type TAutoRefreshFlag = (arNone, arAutoInc, arDefault);
sizeof(G)  returns 1


in FPC
if defined
  type TAutoRefreshFlag = (arNone, arAutoInc, arDefault);

and same
  Var G : TAutoRefreshFlag;

sizeof(G) returns 4.


This different behaviour break some code when I port them from Delphi 5 
to FPC.

Is there a compiler directive I can do to ensure compatibility?

Dennis


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