[bug #64421] [mom] the word "black" spuriously appears in output

[G. Branden Robinson]

Update of bug #64421 (project groff):

                  Status:                    None => Need Info              

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Follow-up Comment #23:

Hi Günter,

Thank you very much for following up.

[comment #22 comment #22:]
> I rebuilt the Arch Linux groff package at version 1.23.0-3 from source and
that resolved the issue. - The "black" label does not show up with that
compiled version.
> 
> The precompiled package for the exact same package version still has the bug
though.

Hmm.  This suggests the possibility that something went awry with the
toolchain used to build the official Arch Linux package.  I don't know enough
about Arch's development processes to say if a build bot constructed it, or
the package maintainer.  The Debian Project's "reproducible builds" effort is
motivated, as I understand it, in significant measure by this sort of
problem.

Nevertheless, could you assemble a gzipped tar of the stock and your rebuilt
versions of the "troff" command and attach them to this ticket?  I'd like to
do comparative _objdump_(1)s of them and see if that reveals anything
interesting.

I am less confident now than I was in comment #20 that this is a formatter
problem.  Maybe a buggy toolchain was used for the official Arch package
build.

Still, I'd like to rule out a defect in GNU _troff_ here if I can.  It is
possible that GNU _troff_ is being sloppy with memory in a way that was
exposed by the official Arch package build but is concealed by your rebuild.

Regards,
Branden


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