From:	Alex Morgan <abmorga AT emory DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: problem: undefined reference
Date:	Thu, 03 Jun 1999 17:20:43 -0400
Organization:	Emory University
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Hi all!

I found--and fixed--the problem.  It seems that I forgot to compile and
include simpio.o in my library.  No wonder it choked.  Classic programmer
mistake #46.  Oh well.

Thanks.

Alex


Alex Morgan wrote:

> Hi all.
>
> I'm new to djgpp and I'm still trying to get the hang of it.  I have
> read the FAQ and looked through the archives (I saw that there are lots
> of people who have received a similar message), but I can't figure out
> what to do.
>
> I have a program that calls a command that resides in a library (named
> libcs.a) that I made that resides in the c:\djgpp\lib directory (I also
> have a copy of it in my pwd).  The program (see below) compiles fine,
> but when gcc tries to link all of the files, I get this:
>
> C:\djgpp\sources\02>gcc -v greeting.o -lcs -o greeting.exe
> Reading specs from c:/djgpp/lib/specs
> gcc version 2.8.1
>  c:/djgpp/bin/ld.exe -o greeting.exe c:/djgpp/lib/crt0.o -Lc:/djgpp/lib
> -Lc:/djg
> pp/contrib/grx22/lib -Lc:/djgpp/cslib/windows
> -Lc:/djgpp/lib/gcc-lib/djgpp/2.81
> -Lc:/djgpp/bin -Lc:/djgpp/lib greeting.o -lcs -Tdjgpp.djl -lgcc -lc
> -lgcc
> greeting.o(.text+0x34):greeting.c: undefined reference to `GetLine'
>
> The program, greeting.c, is as follows:
>
> C:\Dev-C++\sources\02>type greeting.c
> /*
>  * File: greeting.c
>  * ----------------
>  * This program prints a more personal greeting than did
>  * the original "Hello, world." program by reading in the
>  * name of the user.
>  */
>
> #include <stdio.h>
> #include "genlib.h"
> #include "simpio.h"
>
> main()
> {
>     string user;
>
>     printf("What is your name? ");
>     user = GetLine();
>     printf("Hello, %s.\n", user);
> }
>
> Both "genlib.h" and "simpio.h" reside in c:\djgpp\include and the pwd (
> I believe that djgpp should search my pwd for the "*.h" files, but I
> wanted to be sure they were found.)
>
> I could post the contents of both genlib.* and simpio.* if necessary.
> BTW, I did not write these files; they came as part of a package for a
> class that I'm taking.
>
> Any suggestions on how to resolve this?
>
> Alex

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