Bug#996561: qepcad fails autopkgtests on !amd64, !i386

[Torrance, Douglas]

Control: tags -1 pending

On Fri 15 Oct 2021 01:52:37 PM EDT, Doug Torrance <dtorrance at piedmont.edu> wrote:
> On Fri 15 Oct 2021 10:29:40 AM EDT, Nilesh Patra <nilesh at debian.org> wrote:
>> qepcad fails its autopkgtests on every non-x86 arch as seen here.
>> Can you fix this?
>
> I confirmed that QEPCAD isn't functioning for me locally on an armhf system
> (Raspberry Pi).  I'll see if I can track down the issue.

I believe the issue was that QEPCAD was reading input using a `char`, and
occasionally checking to see if this was EOF, which is negative (-1).  But on
the failing architectures, `char` defaults to unsigned, so it was getting
255 instead of -1, and we ended up with infinite loops.

I'll upload a new version of the package containing a patch, which I confirmed
works on armhf, shortly.

Doug
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