Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!husc6!rice!sun-spots-request
From: grandi@noao.edu (Steve Grandi)
Newsgroups: comp.sys.sun
Subject: Typesetter-Independent Troff on a Sun-4
Keywords: Software
Message-ID: <312@brazos.Rice.edu>
Date: 20 Jul 89 18:01:40 GMT
Sender: news@rice.edu
Organization: Sun-Spots
Lines: 17
Approved: Sun-Spots@rice.edu
X-Sun-Spots-Digest: Volume 8, Issue 79, message 12 of 15

Has anyone ported the AT&T Typesetter-independent Troff package (also
known as Device Independent Troff or DWB) to a Sun-4?  I have both DWB-1
and DWB-2 (properly licensed!) but compiling them on the Sun-4 results in
an immediate segmentation violation.

When Kernighan rewrote Troff into Typesetter-independent Troff, he
utilized a pair of routines fdprintf and sprintf as scaled down versions
of the library routines.  Unfortunately, these two use variable numbers of
arguments accessed through a stack pointer which is a no-no on the SPARC.

So, before I go in with my machete and hack and slash this stuff into
shape with varargs(3) (or switch back to the library routines), has
someone already done the work?  I haven't even got to any possible
alignment problems yet!

Steve Grandi, National Optical Astronomy Observatories, Tucson AZ, 602-325-9228
Internet: grandi@noao.edu             SPAN/HEPNET: NOAO::GRANDI (NOAO=5355)