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Date: Mon, 29 Mar 2010 18:03:27 +0300
From: Eli Zaretskii <eliz AT gnu DOT org>
Subject: Re: djgpp/libreadline bug? (cannot use backspace)
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> From: RayeR <glaux AT centrum DOT cz>
> Date: Mon, 29 Mar 2010 07:35:28 -0700 (PDT)
> Bytes: 2424
> 
> So it seems it is a problem of ncurses. Does ncurses use conio
> functions? Or does it redefine them its own way?

It defines its own versions of those functions.

> I think it should be possible to use same function from different
> modules or libraries.

No, names of external functions have global scope.  There can be only
one definition for each such function.

> E.g. I use printf from libc and other library can aslo use printf and
> all get linked together without any problem.

You can _use_, i.e., _call_ the same function from many places.  But
ncurses does not _call_ getch etc., it _implements_ them.

> But what would happen if any other library will define it's own printf
> (without including stdio.h)?

You will get similar linker errors.