From owner-freebsd-questions@FreeBSD.ORG  Tue Sep 23 17:57:04 2008
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 46A06106567A
	for <freebsd-questions@freebsd.org>;
	Tue, 23 Sep 2008 17:57:04 +0000 (UTC)
	(envelope-from fbsd.questions@rachie.is-a-geek.net)
Received: from mail.rachie.is-a-geek.net (rachie.is-a-geek.net [66.230.99.27])
	by mx1.freebsd.org (Postfix) with ESMTP id 141A48FC12
	for <freebsd-questions@freebsd.org>;
	Tue, 23 Sep 2008 17:57:03 +0000 (UTC)
	(envelope-from fbsd.questions@rachie.is-a-geek.net)
Received: from localhost (mail.rachie.is-a-geek.net [192.168.2.101])
	by mail.rachie.is-a-geek.net (Postfix) with ESMTP id 0E4B6AFBC01;
	Tue, 23 Sep 2008 09:57:03 -0800 (AKDT)
From: Mel <fbsd.questions@rachie.is-a-geek.net>
To: freebsd-questions@freebsd.org,
 unga888@yahoo.com
Date: Tue, 23 Sep 2008 19:57:01 +0200
User-Agent: KMail/1.9.7
References: <458434.63007.qm@web57006.mail.re3.yahoo.com>
In-Reply-To: <458434.63007.qm@web57006.mail.re3.yahoo.com>
MIME-Version: 1.0
Content-Type: text/plain;
  charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Content-Disposition: inline
Message-Id: <200809231957.01976.fbsd.questions@rachie.is-a-geek.net>
Cc: 
Subject: Re: A strange compiling issue
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 23 Sep 2008 17:57:04 -0000

On Tuesday 23 September 2008 11:45:40 Unga wrote:
> Hi
>
> I'm trying to compile Perl on FreeBSD. It get cleanly compiled on FreeBSD
> 7.0.
>
> But on another test system running RELENG_7 where I do weired things, it
> develops errors. There must be something wrong with my test system, I wou=
ld
> like to understand what cause this error.
>
> cc -c -DPERL_CORE -DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H
> -fno-strict-aliasing -pipe  -std=3Dc89 -O -Wall -ansi   -W -Wextra
> -Wdeclaration-after-statement -Wendif-labels -Wc++-compat toke.c
>
> toke.c: In function 'Perl_yylex':
> toke.c:6633: error: lvalue required as unary '&' operand
> toke.c:6633: error: lvalue required as unary '&' operand

> Line 6633:
>                     if (memchr(tmpbuf, ':', len))
>                         sv_setpvn(PL_subname, tmpbuf, len);
>                     else {
>                         sv_setsv(PL_subname,PL_curstname);
>                         sv_catpvs(PL_subname,"::");
>                         sv_catpvn(PL_subname,tmpbuf,len);

These line numbers are off. There's no '&' anywhere here. Any chance this f=
ile=20
wasn't passed through yacc/lex? Does an '&' show up in raw cpp output (mayb=
e=20
memchr was defined as some macro)? Try:
cpp -DPERL_CORE -DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H -fno-strict-aliasing =
=2Dpipe =A0\
	-std=3Dc89 -O -Wall -ansi =A0 -W -Wextra -Wdeclaration-after-statement \
	-Wendif-labels -Wc++-compat -o toke.out

Then inspect toke.out.
=2D-=20
Mel

Problem with today's modular software: they start with the modules
    and never get to the software part.