From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from localhost (localhost [127.0.0.1]) by olra.theworths.org (Postfix) with ESMTP id C9A02431FC4 for ; Mon, 24 Sep 2012 08:21:48 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at olra.theworths.org X-Spam-Flag: NO X-Spam-Score: 0 X-Spam-Level: X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[none] autolearn=disabled Received: from olra.theworths.org ([127.0.0.1]) by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fwDf96vNBFwC for ; Mon, 24 Sep 2012 08:21:48 -0700 (PDT) Received: from mail.cryptobitch.de (cryptobitch.de [88.198.7.68]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by olra.theworths.org (Postfix) with ESMTPS id BAA32431FDC for ; Mon, 24 Sep 2012 08:21:46 -0700 (PDT) Received: from mail.jade-hamburg.de (mail.jade-hamburg.de [85.183.11.228]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.cryptobitch.de (Postfix) with ESMTPSA id 77AEA5AB283 for ; Mon, 24 Sep 2012 17:21:45 +0200 (CEST) Received: by mail.jade-hamburg.de (Postfix, from userid 401) id E706ADF2A3; Mon, 24 Sep 2012 17:21:44 +0200 (CEST) Received: from thinkbox.jade-hamburg.de (mail.jade-hamburg.de [85.183.11.228]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) (Authenticated sender: teythoon) by mail.jade-hamburg.de (Postfix) with ESMTPSA id 1C484DF2A5; Mon, 24 Sep 2012 17:21:32 +0200 (CEST) Received: from teythoon by thinkbox.jade-hamburg.de with local (Exim 4.80) (envelope-from ) id 1TGATQ-0007l6-SN; Mon, 24 Sep 2012 17:21:28 +0200 From: Justus Winter <4winter@informatik.uni-hamburg.de> To: notmuch@notmuchmail.org Subject: [PATCH 2/6] Provide a NORETURN_ATTRIBUTE macro similar to PRINTF_ATTRIBUTE Date: Mon, 24 Sep 2012 17:21:16 +0200 Message-Id: <1348500080-29726-2-git-send-email-4winter@informatik.uni-hamburg.de> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1348500080-29726-1-git-send-email-4winter@informatik.uni-hamburg.de> References: <873927eb5i.fsf@convex-new.cs.unb.ca> <1348500080-29726-1-git-send-email-4winter@informatik.uni-hamburg.de> X-BeenThere: notmuch@notmuchmail.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Sep 2012 15:21:49 -0000 This attribute is understood by gcc since version 2.5. clang provides support for testing for function attributes using __has_attribute. For other compilers this macro evaluates to the empty string. Signed-off-by: Justus Winter <4winter@informatik.uni-hamburg.de> --- compat/function-attributes.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/compat/function-attributes.h b/compat/function-attributes.h index 18f9090..8450a17 100644 --- a/compat/function-attributes.h +++ b/compat/function-attributes.h @@ -28,4 +28,20 @@ #define __has_attribute(x) 0 #endif +/* Provide a NORETURN_ATTRIBUTE macro similar to PRINTF_ATTRIBUTE from + * talloc. + * + * This attribute is understood by gcc since version 2.5. clang + * provides support for testing for function attributes. + */ +#ifndef NORETURN_ATTRIBUTE +#if (__GNUC__ >= 3 || \ + (__GNUC__ == 2 && __GNUC_MINOR__ >= 5) || \ + __has_attribute (noreturn)) +#define NORETURN_ATTRIBUTE __attribute__ ((noreturn)) +#else +#define NORETURN_ATTRIBUTE +#endif +#endif + #endif -- 1.7.10.4