From patchwork Thu Jan 22 16:21:31 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Andreas_K=2E_H=C3=BCttel?= X-Patchwork-Id: 128765 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from vm01.sourceware.org (localhost [127.0.0.1]) by sourceware.org (Postfix) with ESMTP id 6928D4BA23D2 for ; Thu, 22 Jan 2026 16:23:06 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6928D4BA23D2 X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from smtp.gentoo.org (mail.gentoo.org [IPv6:2001:470:ea4a:1:5054:ff:fec7:86e4]) by sourceware.org (Postfix) with ESMTP id AD59D4BA2E2C for ; Thu, 22 Jan 2026 16:22:35 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org AD59D4BA2E2C Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gentoo.org Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gentoo.org ARC-Filter: OpenARC Filter v1.0.0 sourceware.org AD59D4BA2E2C Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2001:470:ea4a:1:5054:ff:fec7:86e4 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1769098955; cv=none; b=kORX4KTG4Q+Ip4p8Z0CijFBeyeWVHeQsRU4SWpDN6KFDt41wLuzJmp+ABK8m0M6bSIIkHNccDE0UctFjjswlhfHaXdq/O5s4NoZTljplcwHTtw9TcGfK84T4+kmYL/Mvx8sFl45JPh9RYviZVlMVJqGGjpZjs6hsQShJovGmLrY= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1769098955; c=relaxed/simple; bh=g86ZBRAEdfmpq7VQ/lls1AZwpREakMMgt2170wjUVbQ=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=x1o4pEo+mxyRvjtDRFfosUH5wfQoqt1N6u7QKKfBHuO05dpVowLT62JqetMfDsOf43ZShtrVgbIfw+P9L88+1dSsAq299BrlzBa79JeCcfqMFO9NA9GksM182XEhNnGAOt60coSZBRjSmqXPvDK3ccU2m17EwvCq0XRlWhJ370g= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org AD59D4BA2E2C Received: from kona.uni-regensburg.de (pc1012350290.uni-regensburg.de [132.199.97.81]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dilfridge) by smtp.gentoo.org (Postfix) with ESMTPSA id 40E67341096; Thu, 22 Jan 2026 16:22:34 +0000 (UTC) From: dilfridge@gentoo.org To: libc-alpha@sourceware.org Cc: =?utf-8?q?Andreas_K=2E_H=C3=BCttel?= Subject: [PATCH] NEWS: Mention build issues due to const-preserving macros Date: Thu, 22 Jan 2026 17:21:31 +0100 Message-ID: <20260122162216.1257920-1-dilfridge@gentoo.org> X-Mailer: git-send-email 2.52.0 MIME-Version: 1.0 X-Spam-Status: No, score=-10.0 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces~patchwork=sourceware.org@sourceware.org From: Andreas K. Hüttel Signed-off-by: Andreas K. Hüttel Reviewed-by: Collin Funk --- Opinions? Any ideas for better wording? --- NEWS | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/NEWS b/NEWS index 4d64d2ec29..ac9e0f6345 100644 --- a/NEWS +++ b/NEWS @@ -93,6 +93,12 @@ Deprecated and removed features, and other changes affecting compatibility: * Support for dumped heaps has been removed. malloc_set_state() now always returns the error code -1. +* The abovementioned change in ISO C23 of the declaration of bsearch, + memchr, strchr, strpbrk, strrchr, strstr, wcschr, wcspbrk, wcsrchr, + wcsstr, and wmemchr as const-preserving macros can lead to compilation + issues in code not set up for it. In particular, gnulib snapshots may need + to be updated. + * The uimaxabs function has been renamed to umaxabs, following a change to the name of that function in ISO C2Y. The old function continues to exist as a compatibility symbol for old binaries.