From b4103f621f0d7009b382888dbdf582f256dcaaa8 Mon Sep 17 00:00:00 2001 From: Justus Winter <4winter@informatik.uni-hamburg.de> Date: Mon, 24 Sep 2012 12:31:53 +0200 Subject: [PATCH] [PATCH 1/5] RFC: Provide a __has_attribute compatibility macro --- b1/b90fb954bb6843a0b8bb72cf689126f547b571 | 98 +++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 b1/b90fb954bb6843a0b8bb72cf689126f547b571 diff --git a/b1/b90fb954bb6843a0b8bb72cf689126f547b571 b/b1/b90fb954bb6843a0b8bb72cf689126f547b571 new file mode 100644 index 000000000..1772cd338 --- /dev/null +++ b/b1/b90fb954bb6843a0b8bb72cf689126f547b571 @@ -0,0 +1,98 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by olra.theworths.org (Postfix) with ESMTP id 8C664431FBD + for ; Mon, 24 Sep 2012 03:32:26 -0700 (PDT) +X-Virus-Scanned: Debian amavisd-new at olra.theworths.org +X-Spam-Flag: NO +X-Spam-Score: 0.001 +X-Spam-Level: +X-Spam-Status: No, score=0.001 tagged_above=-999 required=5 + tests=[UNPARSEABLE_RELAY=0.001] 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 DYnhGAIShJtD for ; + Mon, 24 Sep 2012 03:32:25 -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 7CBCC431FAF + for ; Mon, 24 Sep 2012 03:32:20 -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 E23BD5AA9C6 + for ; Mon, 24 Sep 2012 12:32:18 +0200 (CEST) +Received: by mail.jade-hamburg.de (Postfix, from userid 401) + id 2BB5FDF2A8; Mon, 24 Sep 2012 12:32:18 +0200 (CEST) +Received: from thinkbox.jade-hamburg.de (unknown + [IPv6:fe80::216:d3ff:fe3e:5058%br0]) + (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 3203DDF2A3; + Mon, 24 Sep 2012 12:32:12 +0200 (CEST) +Received: from teythoon by thinkbox.jade-hamburg.de with local (Exim 4.80) + (envelope-from ) + id 1TG5xR-0002i1-P6; Mon, 24 Sep 2012 12:32:09 +0200 +From: Justus Winter <4winter@informatik.uni-hamburg.de> +To: notmuch@notmuchmail.org +Subject: [PATCH 1/5] RFC: Provide a __has_attribute compatibility macro +Date: Mon, 24 Sep 2012 12:31:53 +0200 +Message-Id: + <1348482717-10340-2-git-send-email-4winter@informatik.uni-hamburg.de> +X-Mailer: git-send-email 1.7.10.4 +In-Reply-To: + <1348482717-10340-1-git-send-email-4winter@informatik.uni-hamburg.de> +References: <20120922161256.GE26662@mit.edu> + <1348482717-10340-1-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 10:32:27 -0000 + +__has_attribute is defined by clang and tests whether a given function +attribute is supported by clang. + +Add a compatibility macro for other compilers. + +Note: This is work in progress, please don't merge this patch. The +question that needs to be discussed is where this kind of macro should +be defined. + +Signed-off-by: Justus Winter <4winter@informatik.uni-hamburg.de> +--- + util/error_util.h | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/util/error_util.h b/util/error_util.h +index bb15822..1b11047 100644 +--- a/util/error_util.h ++++ b/util/error_util.h +@@ -23,6 +23,14 @@ + + #include + ++/* clang provides this macro to test for support for function ++ * attributes. If it isn't defined, this provides a compatibility ++ * macro for other compilers. ++ */ ++#ifndef __has_attribute ++#define __has_attribute(x) 0 ++#endif ++ + /* There's no point in continuing when we've detected that we've done + * something wrong internally (as opposed to the user passing in a + * bogus value). +-- +1.7.10.4 + -- 2.26.2