From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 83D7E1381F3 for ; Thu, 19 Sep 2013 17:36:30 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id C3C00E0CB0; Thu, 19 Sep 2013 17:36:24 +0000 (UTC) Received: from mail-vb0-f47.google.com (mail-vb0-f47.google.com [209.85.212.47]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id C5BA9E0C08 for ; Thu, 19 Sep 2013 17:36:23 +0000 (UTC) Received: by mail-vb0-f47.google.com with SMTP id h10so6558236vbh.6 for ; Thu, 19 Sep 2013 10:36:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Gr9hJulUj5Ku+FqOs/fUaHtPFRqhKG44W78CJJqzhTs=; b=hYEb13ED/f/7R/JLijw2783BFzBRuPjC789Pzs8m9RGdY+1f++dIdiT8RMsCXGnQkz r5pP4t0qkX2gjg18q0ZmMtoShOD5Pj52uLsj0HtJ8LJHuE9SgYgf0S5fq9AQ5ZqUuFrp ONpZ7e6Ws6fbZyBZqH1768ZbqZ5xE/teRA3HBbVni0F0XcIcouxxPcIyXkW9h65lKxun VpPN4FzOIZzrMr4vnuFBoHd48bVcm43Y0OIVGj4uWYH3TcOD2xxGd1YkaWp+gORbn6ai VLQ+NRVKfkcnTMGd/Jn9VWSe9QzoM27YfLX4FuoAJ8mY1E5PRfo/Fca2wjkt4NCme1si svnw== 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 X-Received: by 10.58.230.135 with SMTP id sy7mr5113vec.42.1379612183012; Thu, 19 Sep 2013 10:36:23 -0700 (PDT) Received: by 10.58.112.168 with HTTP; Thu, 19 Sep 2013 10:36:22 -0700 (PDT) In-Reply-To: References: Date: Thu, 19 Sep 2013 20:36:22 +0300 Message-ID: Subject: Re: [gentoo-user] Switching off a long list of USE flags From: gevisz To: gentoo-user@lists.gentoo.org Content-Type: multipart/alternative; boundary=047d7bdc87be18ad0804e6bffefc X-Archives-Salt: b72fb5ee-7eed-4de5-9833-5d5e272a208a X-Archives-Hash: c06d9780ebd3144aa3fb568bf0d312e2 --047d7bdc87be18ad0804e6bffefc Content-Type: text/plain; charset=ISO-8859-1 2013/9/19 Wang Xuerui > 2013/9/19 gevisz : > > I would like to build sane-backend only for one specific scanner. > > > > However, there are a huge lot of different USE flags for other scanners > > that are already switched on by default. > > > > Is there any easy way to switch them off? > > > > Something like: > > > > media-gfx/sane-backends -sane_backends* sane_backends_hp > > > > Exactly that way does not work, but may be something like that... > > > > ...instead of directly switching off every one of them. > > According to the Package Manager Specification, the variable should > not be incremental, i.e. any value set would override *any* defaults > or previously set values. So just do SANE_BACKENDS="xxx" in your > make.conf, same as what you'd do for VIDEO_CARDS and the like. > > Hope it helps :) > Yes, SANE_BACKENDS="hp" works, SANE_BACKENDS="+hp3500" does not. Thank you for all who replied. --047d7bdc87be18ad0804e6bffefc Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
2013= /9/19 Wang Xuerui <idontknw.wang@gmail.com>
2013/9/19 gevisz <gevisz@gmail.com>:
> I would like to build sane-backend only for one= specific scanner.
>
> However, there are a huge lot of different USE flags for other scanner= s
> that are already switched on by default.
>
> Is there any easy way to switch them off?
>
> Something like:
>
> =A0 =A0 =A0 =A0 =A0 media-gfx/sane-backends -sane_backends* sane_backe= nds_hp
>
> Exactly that way does not work, but may be something like that...
>
> ...instead of directly switching off every one of them.

According to the Package Manager Specification, the variable sh= ould
not be incremental, i.e. any value set would override *any* defaults
or previously set values. So just do SANE_BACKENDS=3D"xxx" in you= r
make.conf, same as what you'd do for VIDEO_CARDS and the like.

Hope it helps :)

Yes,

SANE_BACKE= NDS=3D"hp"

works,

SANE_BACKENDS=3D"= ;+hp3500"

does not.

Thank you for = all who replied.

=A0

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