From: Alex Morgan <abmorga AT emory DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: problem: undefined reference
Date: Wed, 02 Jun 1999 21:58:49 -0400
Organization: Emory University
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

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