pic and gpresent with groff-1.19.1

[Zvezdan Petkovic]

I tried groff-1.19.1 recently but had to give up because of its clashes
with gpresent.  First, it didn't work with small EPS logo at the bottom
of my presentations.  Bob Diertens, a very helpful and responsive author
of gpresent, had fixed that problem with the patch attached below.
(The patch towards the version of presentps on his web page
http://www.science.uva.nl/~bobd/useful/gpresent/
from February 2004)

However, the next problem couldn't be resolved with presentps and is
obviously changed behaviour (bug?) introduced in groff-1.19.x
Please find attached a tar file with two extracted pages from my
presentation which demonstrate the problem.
The file present.pdf_groff-1.19.1 demonstrates the wrong behaviour,
where every time after a PAUSE the pic line is offset instead of staying
in place.
The file present.pdf_groff-1.18.1.1 demonstrates the correct behaviour
obtained with groff-1.18.1.1

The problem was tested on Red Hat Linux 9, SuSE Linux 9.1,
and OpenBSD 3.6 (just type make to create a PDF file).
I hope this will present a good test case to locate the source of the
problem.
I shall continue working with groff-1.18.1.1 until then.

Best regards,

        Zvezdan Petkovic

presentps.patch
Description: Text document

present.tar.gz
Description: application/gunzip