From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1S0Ify-00079u-Cs for garchives@archives.gentoo.org; Wed, 22 Feb 2012 20:20:34 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 29EE0E10F1; Wed, 22 Feb 2012 20:20:21 +0000 (UTC) Received: from mail-wi0-f181.google.com (mail-wi0-f181.google.com [209.85.212.181]) by pigeon.gentoo.org (Postfix) with ESMTP id 0FF7AE10EB for ; Wed, 22 Feb 2012 20:19:01 +0000 (UTC) Received: by wibhi8 with SMTP id hi8so351290wib.40 for ; Wed, 22 Feb 2012 12:19:01 -0800 (PST) Received-SPF: pass (google.com: domain of markknecht@gmail.com designates 10.180.83.70 as permitted sender) client-ip=10.180.83.70; Authentication-Results: mr.google.com; spf=pass (google.com: domain of markknecht@gmail.com designates 10.180.83.70 as permitted sender) smtp.mail=markknecht@gmail.com; dkim=pass header.i=markknecht@gmail.com Received: from mr.google.com ([10.180.83.70]) by 10.180.83.70 with SMTP id o6mr39253098wiy.19.1329941941353 (num_hops = 1); Wed, 22 Feb 2012 12:19:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=i7gh+3pAF9/3+iIsDvGpwrSiU3F55NUYUM6ApjCSrik=; b=KSWdwWYDpH2StaCf1SfUvyhcy7gQ6kSpmAuTsSUeYsKzmA4/sQBw+aiwZM4WNuz/r4 NGpPhlVpMg0/Un1YgTfDeY7HrkRiCHOPaNXE1nBPlzOKjEEMLPQbAQBT/lVY1ApL542y Spdv093CDMeV9ErQWgGoPfg4gpvJFTlXixDPI= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.180.83.70 with SMTP id o6mr32557505wiy.19.1329941941287; Wed, 22 Feb 2012 12:19:01 -0800 (PST) Received: by 10.223.4.154 with HTTP; Wed, 22 Feb 2012 12:19:01 -0800 (PST) In-Reply-To: <20120222215849.63cb48b4@khamul.example.com> References: <20120222194724.GA3210@solfire> <20120222215849.63cb48b4@khamul.example.com> Date: Wed, 22 Feb 2012 12:19:01 -0800 Message-ID: Subject: Re: [gentoo-user] downgrading gcc, stage 2 From: Mark Knecht To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 8a2857a8-ca4b-4005-a871-b1ce597c0f3e X-Archives-Hash: 483baefc09ec64dd6700f4d859e7aad0 On Wed, Feb 22, 2012 at 11:58 AM, Alan McKinnon w= rote: > On Wed, 22 Feb 2012 20:47:24 +0100 > meino.cramer@gmx.de wrote: > >> Hi, >> >> while trying to get a "clean" system after downgrading gcc to >> gcc-4.4.5. I encountered a field of black magick...more black >> than magic at all: >> >> To find broken libs I did these two commands: >> =C2=A0 =C2=A0 sudo find /usr/lib/. /lib/. /usr/bin/. -type f -name 'lib*= [^a]' >> -exec ldd {} \; >! /tmp/librebuild.txt 2>&1 cat /tmp/librebuild.txt | >> grep >> GLIB > > Why don't you just use revdep-rebuild? > > That tool automates precisely what you are trying to do manually. > > > -- > Alan McKinnnon > alan.mckinnon@gmail.com > > I tend to agree with Alan. revdep-rebuild should help. Additionally, if I were really intent on downgrading gcc, then I would probably remove EVERY application unneeded to keep the machine running down to and including X11, do the downgrade, rebuild the kernel and reboot, do an emerge -e @world, make sure all that is working, and only then start building apps. But that's just me... Not exactly related, but I'm personally wondering what's driving the need to downgrade. For kicks yesterday I rebuilt my laptop which currently has audio apps as well as Blender on it with the latest stable gcc. Everything rebuilt fine and everything I've tried seems to run. Good luck, Mark