From:	Hans-Bernhard Broeker <broeker AT physik DOT rwth-aachen DOT de>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: How to include source files?
Date:	22 May 2001 15:19:01 GMT
Organization:	Aachen University of Technology (RWTH)
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Thomas Schmidt <tschmid8 AT gwdg DOT de> wrote:

> The "hello_world" program is just a tool of solving the REAL problem, of
> course.  The real problem is that DJGPP doesn't recognize (i.e., claims
> "implicit declaration" of) two ALLEGRO routines: _install_irq() and
> _remove_irq(), both of which are in "c:\djgpp\allegro\src\djgpp\irq.c".

Ahh... looks like you haven't grasped the C Preprocessor directives,
yet.  Either that, or you didn't install Allegro correctly.  

The 'implicit declaration' is a warning, telling you that the compiler
knows nothing about these allegro routines, at the time your source
calls them, so it's forced to guess.  You're lacking the line

	#include <allegro.h>

somewhere close to the beginning of the .c file. This is basic C
language, and in no way particular to RHIDE or DJGPP.
-- 
Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
Even if all the snow were burnt, ashes would remain.

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