Goedenavond,

The following snippet gives the above mentioned error message on Mac (Yosem.) and aborts the compilation process on Ubuntu (14.04). I'm using version 3.0.2 [2017/02/12] for i386 and 3.0.2 [2017/02/25] for x86_64. There are several variants (mentioned in code) which influence the outcome. Code is from a low-level header file which I likely won't ever need but I thought it might be of interest nevertheless.

Hans-Peter

PS: in case this should go to Tracker/Mantis? could this do someone, maybe? (otherwise let me know, thanks).

```pascal (file saved as a.pas)
{$MODE DELPHI}  // (1) _NOT_ using delphi mode works
unit a;
{==============================================================================}
interface
type
  pSExp = pointer;
  aSExpArr = array[0..((MaxInt div SizeOf(pSExp)) - 1)] of pSExp;
  // aSExpArr = array[0..((MaxInt div 2*SizeOf(pSExp)) - 1)] of pSExp;
  // (2) using a _shorter_ array, eg. ^^ works on Ubuntu (Mac still Error)
  pFoo = ^aFoo;
  aFoo = record
    rec: aSExpArr;
  end;
function ahoppla(_x: pFoo): aSExpArr;
{==============================================================================}
implementation
type
  pData = ^aData;
  aData = record
    offset: array[1..24] of byte;  // (3) uncommenting offset works
    SExpArr: aSExpArr;
  end;
function ahoppla(_x: pFoo): aSExpArr;
  begin
    ahoppla:= pData(_x)^.SExpArr;
    // ahoppla:= _x.rec;           // (4) _not_ casting works on Ubuntu
(Mac error)
  end;

end {a}.
```

Hans-Peter Suter wrote

Goedenavond, The following snippet gives the above mentioned error message

The error message for a 32 bit target is correct, the data structure is too big.

on Mac (Yosem.) and aborts the compilation process on Ubuntu (14.04).

Indeed, the compiler crashed for 64 bit targets, fixed.