unit UsedUnitRefs1; {$mode objfpc}{$H+} interface uses Classes, SysUtils, math, process; implementation procedure DoSome; var c: TComponent; d: float; i: Int64; begin c:=TComponent.Create(nil); c.Free; d:=1.3; i:=round(d); writeln(i+abs(d)); writeln(sin(d)); writeln(MinFloat