Date: Thu, 31 Oct 2002 03:50:04 -0800 (PST) From: Jens Rehsack <rehsack@liwing.de> To: freebsd-ports@FreeBSD.org Subject: Re: ports/44449: audio/id3lib port fails to build Message-ID: <200210311150.g9VBo4TY045165@freefall.freebsd.org>
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The following reply was made to PR ports/44449; it has been noted by GNATS.
From: Jens Rehsack <rehsack@liwing.de>
To: Greg 'groggy' Lehey <grog@current.lemis.com>
Cc: FreeBSD-gnats-submit@FreeBSD.org, ports@freebsd.org
Subject: Re: ports/44449: audio/id3lib port fails to build
Date: Thu, 31 Oct 2002 12:44:23 +0100
Greg 'groggy' Lehey wrote:
>
> >Number: 44449
> >Category: ports
> >Synopsis: audio/id3lib port fails to build
> >Confidential: no
> >Severity: critical
> >Priority: high
> >Responsible: freebsd-ports
> >State: open
> >Quarter:
> >Keywords:
> >Date-Required:
> >Class: sw-bug
> >Submitter-Id: current-users
> >Arrival-Date: Thu Oct 24 20:10:01 PDT 2002
> >Closed-Date:
> >Last-Modified:
> >Originator: Greg 'groggy' Lehey
> >Release: FreeBSD 5.0-CURRENT i386
> >Organization:
> LEMIS (SA) Pty. Ltd
> >Environment:
> System: FreeBSD current.lemis.com 5.0-CURRENT FreeBSD 5.0-CURRENT #0: Thu Oct 24 11:57:57 CST 2002 grog@current.lemis.com:/usr/obj/src/FreeBSD/5-CURRENT-WANTADILLA/src/sys/WANTADILLA i386
>
> Not machine dependent
> >Description:
> audio/id3lib no longer builds under recent -CURRENT. There
> are no problems with -STABLE, but at least two with -CURRENT:
>
> 1. gmake[2]: Entering directory `/src/FreeBSD/ports/audio/id3lib/work/id3lib-3.7.13/examples'
> c++ -DHAVE_CONFIG_H -I. -I. -I.. -I../include -I/usr/local/include -O -pipe -mcpu=pentiumpro -c demo_info.cpp
> demo_info.cpp: In function `void PrintInformation(const ID3_Tag&)':
> demo_info.cpp:262: `strlen' undeclared (first use this function)
>
> 2. After including string.h from that file, the link phase
> fails with a large number of undefined references to C++
> library functions.
>
> >How-To-Repeat:
> cd /usr/ports/audio/id3lib
> make install
> >Fix:
>
> I suspect this has something to do with recent changes to
> headers and libraries. I don't have time to investigate yet.
> In view of the impending release of 5.0, it should be
> investigated quickly, though.
> >Release-Note:
> >Audit-Trail:
> >Unformatted:
I sent the same PR 2 days before (ports/44423) and I had a suspicion 'bout the
error. Now I verfied it and I was right. I attach 2 c++ sources. If anyone try
build them under a Current installation which is up to date, (s)he will see
the reason for the error.
It's the consequence from gcc32 which implements the current ANSI C++ standard
which is using namespaces but didn't it doing right with the deprecated include
files (*.h) for c++. That means that "iostream.h" declares a class instance cout
which is defined (libstdc++) in namespace std but declared outside.
There are two ways to fix:
1) Fix the gcc32 include files to declare right.
2) Fix the id3lib to use the current ANSI C++ standard (if found a compiler who supports)
And a question remains:
Who make these fixes and on which source tree. I can do but I don't have any interrest to
have many hours of fixing and the result is thrown away.
--- BEGIN test1.cc ---
#include <iostream.h>
int main()
{
cout << "Hello world." << endl;
return 0;
}
--- END test1.cc ---
--- BEGIN test2.cc ---
#include <iostream>
using namespace std;
int main()
{
cout << "Hello world." << endl;
return 0;
}
--- END test2.cc ---
Greetings,
Jens
--
L i W W W i Jens Rehsack
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Tel.: +49 - 3 45 - 5 17 05 91 ggg e-Mail: <rehsack@liwing.de>
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