Xref: news2.mv.net comp.os.msdos.djgpp:583
From: a540ami AT pic DOT ucla DOT edu (Ami Fischman)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: I can't compile C++...
Date: 16 Jan 1996 06:39:13 GMT
Organization: University of California, Los Angeles
Lines: 36
Message-ID: <4dfh6h$h3i@saba.info.ucla.edu>
References: <DL76yo DOT 4Fx AT jade DOT mv DOT net> <30fb0332 DOT 1350250 AT nntp DOT ix DOT netcom DOT com>
NNTP-Posting-Host: venice.pic.ucla.edu
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

In <30fb0332 DOT 1350250 AT nntp DOT ix DOT netcom DOT com>, Danny Yoo (dannyyoo AT ix DOT netcom DOT com) wrote:
> Ian Viemeister <vmeister AT ios DOT com> wrote:
> 
> >>merry way until it started spitting out errors when it saw cin and cout 
> >>(BTW, I did #include<iostream.h>). It didn't give me line numbers for 
> >
> >You have forgotten to add -lgpp to the gcc command line. This tells 
> >the linker to add in the C++ libs. Please note, this is likely the 
> >*most* Frequently Asked Question about compiling C++, and it is 
> >answered in the FAQ (faq102.zip at the DJGPP sites)
> 
> 	I'm having the same stupid problem, but I AM using
> gcc -lgpp [filename], and it still does it.  Here's my program and the
> output:
> 
> #include "iostream.h"
> void main(void) {
> 	cout << "Hello World!\n";
> }
> 
> 
> test.cc(.text+0x1c): undefined reference to `cout'
> test.cc(.text+0x21): undefined reference to `ostream::operator<<(char
> const *)'

The -lgpp *must* be after the object/source files -- the linker only
"remembers" symbols it hasn't resolved yet, so the way you have it, the
linker scans libgpp.a, sees cout, figures nobody needs it, and moves on to
your program, where you need the symbol...

In short, do gcc [filename] -lgpp

-- 
					--Ami
					  Have YOU hugged YOUR smurf today?
"He's just a politician trying to save both his faces ..."