> yeah, blah... the version I had on my old sun has got the blues too.
>
> hmmmm... compile the latest version with CONF=unix make
> gives the following errors:
>
> gcc: unrecognized option `-pthread'
> In file included from ./include/u.h:1,
>                  from main.c:1:
> ./include/dtos.h:10:3: #error "Define an OS"
> In file included from main.c:2:
[...]

I've just checked out the latest drawterm from cvs,
and out-od-the-box I see the same errors.

I have gotten it to compile (and so far it seems to run) on
SunOS zamenhof 5.8 Generic_117350-22 sun4u sparc SUNW,Sun-Blade-100

I have compiled using sun cc: Sun WorkShop 6 2000/04/07 C 5.1
and gnu make (3.79)
I compiled (from es) using:  make 'CONF=unix' 'AUDIO=none'

I made a few changes to make it compile,
and added a new directory posix-sun4u
populated with stuff elsewhere from drawterm or maybe p9p
(I populated it in nov 2005; did not look back where I got stuff)

I did not make changes to shut up compiler warnings;
I've attached a 'typescript' showing them in case someone
wants to look at them.

I also attach a diff and, one by one, the files from posix-sun4u :

posix-sun4u/Makefile
posix-sun4u/getcallerpc.c
posix-sun4u/md5block.c
posix-sun4u/os.h
posix-sun4u/sha1block.c
posix-sun4u/tas.s

I did not look at the audio stuff; I guess it should be possible
to add something sun specific.
In the past I used the trick described in
 http://plan9.cs.utwente.nl/audio-sun-drawterm/
(the code linked from there is awful but got the job done)

Hope this helps,
Axel.