Title: lefty readline from pipe hangs on Solaris
Submitter: Marko Mäkelä
Date: December 11, 2002
The visualization interface of my program "maria"
(http://www.tcs.hut.fi/Software/maria/) fails on Solaris.
When I try to use any functions that would communicate to
the dotty-based "maria-vis" script via pipes, the dotty
window opens, but the mouse pointer inside the window
remains as a wristwatch and nothing happens.
I think I reported this bug about one year ago,
but my fix has not been applied.
Remove the fseek call from the file graphviz/lefty/os/unix/io.c,
function IO_readline. The calls are probably unnecessary in
IO_writeline as well, but they do not cause any harm.