[fpc-devel] JWA 64-bit struct packing

[Henry Vermaak]

On Thu, 14 May 2020 at 15:22, Marco van de Voort
<fpc at pascalprogramming.org> wrote:
> The original headers only did 32-bit. Over the years some 64-bit
> corrections have been added. This process is ongoing, so please make
> sure you use the newest version.

Grepping for align|packrecords give exactly the same results in trunk,
afaics.  jwawindows.pas explicitly sets align 4.

> I'm a bit loath to try to fix this with big, overarching $packrecords,
> because the winapi actually sometimes uses packrecords C and sometimes
> packrecords 8.

So why is rtl/win*/* full of packrecords c?  These pages say that the
Windows API expect 8:

https://docs.microsoft.com/en-us/windows/win32/winprog/using-the-windows-headers#controlling-structure-packing
https://docs.microsoft.com/en-gb/cpp/build/reference/zp-struct-member-alignment

Henry