program GetOSInfoProgram;
begin
// Output the operating system details
WriteLn('Operating System: ', {$I %FPCTARGETOS%});
WriteLn('Architecture: ', {$I %FPCTARGETCPU%});
WriteLn('FPC Version: ', {$I %FPCVERSION%});
end.
(*
run:
Operating System: Linux
Architecture: x86_64
FPC Version: 3.0.4
*)