From debian-user  Wed Aug 04 03:32:45 1999
From: Havoc Pennington <rhp () zirx ! pair ! com>
Date: Wed, 04 Aug 1999 03:32:45 +0000
To: debian-user
Subject: Re: idiot's question on Xlib programming
X-MARC-Message: https://marc.info/?l=debian-user&m=93373729511774


On Tue, 3 Aug 1999 huixf@tonghua.com.cn wrote:
> 
> I use "gcc -I/usr/X11R6/include/X11 xhi.c" to complie it and get the following message:
> 
> /tmp/cca002281.o: In function `main':
> /tmp/cca002281.o(.text+0x9): undefined reference to `XOpenDisplay'
> /tmp/cca002281.o(.text+0x45): undefined reference to `XCloseDisplay'
> 
> What's the problem? Please reply to huixf@tonghua.com.cn because I will leave the list in a minute.
> 

You have to link with Xlib, try adding the '-lX11' flag to your compile
line.

You may find Gtk or some other high-level toolkit less frustrating; Xlib
is hard even if you have a lot of Unix programming experience.

Havoc



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