Date: Mon, 24 Jul 1995 07:44:58 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: "Nick A. van Goor" <nick AT pandaemonium DOT engr DOT utk DOT edu>
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: _iob and _ctype_ missing in V2 ?


On 18 Jul 1995, Nick A. van Goor wrote:

> gcc -I/include -I. -O -g -Wall -o chaos interrup.o chaos.o csystem.o moonbeam.o vector.o
>   -L/lib -L. -lgraph -lgrx -liostream -lm -lgpp -lpc
> textsize.c(.text+0x59): undefined reference to `_iob'
> setmode.c(.text+0x246): undefined reference to `_iob'
[snip]
> The references to _iob and _ctype_ are in the libgrx code. Am I missing
> something obvious here, or what ?

You are using libgrx from v1.x distribution, aren't you?  You can't mix 
code compiled for v1.x with v2.0 code, because some library functions and 
header files has changed.  You need v2.0 GRX library.  See the FAQ for 
where to get it.