Format file differences (was: Re: pdflatex does not work on win after todays update but does on linux)

[Marcel Fabian Krüger]

On Tue, Jun 15, 2021 at 07:26:03PM +0100, Jonathan Kew wrote:
> 
> I suspect that the commit https://github.com/tex-mirror/pdftex/commit/70e0c9c9e95184665909dd447bc80aa08d700822
> made dumps non-portable at least between 32-bit and 64-bit systems, because
> it (un)dumps variables of C type |size_t|, which will typically be a 4-byte
> value in a 32-bit environment, but 8-byte in a 64-bit system.
> 
> Hence, I wonder if declaring the |count| and |remaining| variables in
> |dumptounicode| and |undumptounicode| respectively as a portable web2c type
> such as |longinteger| might resolve the problem.
> 
> JK
> 

That commit *did* make dumps non-portable but that issue was fixed
shortly afterwards [in texlive](https://github.com/TeX-Live/texlive-source/commit/42e871ff0eba7c26bcead6096bce36f332de3339)
and the fix also made it into the
[pdftex repo](https://github.com/tex-mirror/pdftex/commit/889c5ac900545e9775921b5d884716e9de48b1cf#diff-75f9f96e8dd7b2808844d343e2542f7df64aec52f669468879c200861edeec56).

Best,
Marcel