In the errata kernel 2.2.19 there is a new patch for iBCS, linux-2.2.19-
ibcs.patch, to work-around the strlen_user problem.

I have an application, that works throught iBCS, that stopped working with 
the 2.2.19 kernel due to this patch.
I get an error about "The TERM variable is not set. Set it and try again", 
even if the TERM variable is defined.

To solve this, I reverted the above mentioned patch and applied the one 
posted here:
http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg38272.html

I'm not a programmer and cannot tell if it does the right thing, what I 
know is that my app is working again now :-)