libzvt-2, gnome-terminal-2 fail silently on irix 6.5

[Rubin <rubin xs4all nl>]

Hello People,

I'm working on porting gnome 2.x to my own version of IRIX 6.5 called 
GNU/IRIX. I've been able to build everything in the "development" part 
of the depends.png/dia diagram and everything is tested ok. I'm building 
from 2.1.3 sources.

I'm running into problems trying to get libzvt-2 to work; It builds 
succesfully and linking gnome-terminal-2 against it is not a problem 
either but the following error occurs when trying to start 
gnome-terminal-2 or zterm (included in libzvt-2 sources):


root iris:~# zterm
(zterm:812431): Glib-WARNING: **: giounix.c:396Error while getting flags 
for FD: Bad file number (9)


In this case zterm (or gnome-terminal-2 for that matter) opens a new 
window but fails to put a shell in it, which ends up in the parents' 
window with the forementioned error message.

I've found a bug on bugzilla.gnome.org (#58580) which looks suspiciously 
similar in its symptoms but applying the mentioned patch (changing 
CONTROLLEN's int to long in gnome-pty-helper.c and subshell.c) does not 
change libzvt-2's crude behaviour in my case.

Does anybody have any idea where to look? I understand that libzvt is 
deprecated in favor of vte, but vte fails to even build without 
TIOCSWINSZ and friends which seems to be part of glibc which is not 
available to me (unless there's an iconv-like sollution where TIOCSWINSZ 
and TIOCGWINSZ functionality is added through a library of sorts - 
ofcourse, I might be entirely wrong and mistaken regarding these things 
- if so, please correct me).

Kind regards + thanks for the most beautiful desktop,


Rubin.