From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 22309 invoked from network); 23 Jul 2004 22:25:24 +0000 Received: from smtp.gentoo.org (156.56.111.197) by lists.gentoo.org with AES256-SHA encrypted SMTP; 23 Jul 2004 22:25:24 +0000 Received: from lists.gentoo.org ([156.56.111.196] helo=parrot.gentoo.org) by smtp.gentoo.org with esmtp (Exim 4.34) id 1Bo8Tj-0007Ll-GQ for arch-gentoo-dev@lists.gentoo.org; Fri, 23 Jul 2004 22:25:23 +0000 Received: (qmail 27594 invoked by uid 89); 23 Jul 2004 22:25:22 +0000 Mailing-List: contact gentoo-dev-help@gentoo.org; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@gentoo.org Received: (qmail 11788 invoked from network); 23 Jul 2004 22:25:22 +0000 Date: Fri, 23 Jul 2004 23:22:50 +0100 From: Ciaran McCreesh To: gentoo-dev@lists.gentoo.org Message-Id: <20040723232250.6a3dbe33@snowdrop.home> X-Mailer: Sylpheed version 0.9.11claws (GTK+ 1.2.10; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg="pgp-sha1"; boundary="Signature=_Fri__23_Jul_2004_23_22_50_+0100_sU/Ev4zufO7hEkXw" Subject: [gentoo-dev] Ebuilds referencing /usr/src/linux makes baby Jesus kill kittens X-Archives-Salt: 6cf0a9a0-1c29-4617-883f-2d6c6ef6e98a X-Archives-Hash: 069fcad9aa3bca4d93c3923262eb6e19 --Signature=_Fri__23_Jul_2004_23_22_50_+0100_sU/Ev4zufO7hEkXw Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 7bit Just a friendly reminder that you should really avoid messing around with /usr/src/linux inside ebuilds. In particular, code like the following is utterly wrong: if [ ! -e "/usr/src/linux/include/linux/dm-ioctl.h" ] ; then eerror eerror "Your currently linked kernel (/usr/src/linux) hasn't" eerror "been patched for device mapper support." eerror die "kernel not patched for device mapper support" fi Don't try to do clever things with /usr/src/linux to determine whether a kernel has a particular feature. Especially don't go near .config. The kernel running may not be the kernel in /usr/src/linux. The box in question might be a chroot setup or a netboot system or a system built with a crosscompiler, in which case /usr/src/linux* won't exist at all. The user might be sharing kernel binaries between dozens of identical boxes and only building on one. The user might be building kernels in/home to avoid having to build kernels as root or chown a bunch of stuff. The /usr/src/linux symlink might be out of date. The box might be building binary packages for a different system. You shouldn't be using /usr/src/linux for headers either. I suggest people give the following a good read before they commit even more broken code to the tree: http://www.linuxmafia.com/faq/Kernel/usr-src-linux-symlink.html Think of the kittens, people! -- Ciaran McCreesh : Gentoo Developer (Sparc, MIPS, Vim, Fluxbox) Mail : ciaranm at gentoo.org Web : http://dev.gentoo.org/~ciaranm --Signature=_Fri__23_Jul_2004_23_22_50_+0100_sU/Ev4zufO7hEkXw Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBAY+996zL6DUtXhERAovDAJ0Zy60FjBYhLvhI+4TDAibXqab9PQCeLzxa Wrq2BIOCduPES9BizBnPfXI= =lJ/K -----END PGP SIGNATURE----- --Signature=_Fri__23_Jul_2004_23_22_50_+0100_sU/Ev4zufO7hEkXw--