Message-ID: <33D6328E.1EE3@maltanet.net>
Date: Wed, 23 Jul 1997 09:34:22 -0700
From: Ivan-Mark Debono <ivanmdeb AT maltanet DOT net>
Reply-To: ivanmdeb AT maltanet DOT net
Organization: Axiom Entertainment
MIME-Version: 1.0
To: Andrew Crabtree <andrewc AT typhoon DOT rose DOT hp DOT com>
CC: djgpp AT delorie DOT com
Subject: Re: error: undefined reference
References: <199707221520 DOT AA040834824 AT typhoon DOT rose DOT hp DOT com>
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I have renamed the TILE, SPRITE and MAP to .C files instead of .H files.
The compiler already has the -c directive, but now 2 other errors occur:

Error: gcc.exe: bwmaped.o: linker input file unused since linking not
done
Error: gcc.exe: -lalleg: linker input file unused since linking not done

Can anybody help???

Andrew Crabtree wrote:
> 
> > I'm coding a map editor and I have decided to split my routines into
> > smaller files. This is the list of the current files:
> >
> > - BWMAPED.C   (Main program)
> > - DATASTRT.H  (Various constants and data structures)
> > - TILE.H      (Tile routines)
> > - SPRITE.H    (Sprite routines)
> > - MAP.H               (Map routines)
> > bwmaped.c(101) Error: undefined reference to 'IMD_new_map'
> >
> 
> As a general rule of thumb, only put the following in header files.
> 
> Macros
> Defines
> Function Prototypes
> Struct declarations
> Externs
> 
> Do NOT put in anything like this
> 
> Variable Declaration
> Functions themselves.
> 
> When splitting up files make multiple .c files, with corresponding
> .h files describing the interface if needed, to functions and variables.
> Compile the .c files with the -c option to stop at .o phase.  Then,
> link them all together at once.