X-Envelope-From: notmuch-bounces@notmuchmail.org Sat May 2 08:54:02 2026 Return-Path: X-Original-To: nmbug@yantan.tethera.net Delivered-To: nmbug@yantan.tethera.net Received: from yantan.tethera.net (localhost [127.0.0.1]) by mail.notmuchmail.org (Postfix) with ESMTP id E2837604E2; Sat, 2 May 2026 08:54:01 +0000 (UTC) Received: from phubs.tethera.net (phubs.tethera.net [IPv6:2607:5300:60:3a9d::1]) by mail.notmuchmail.org (Postfix) with ESMTPS id D1BA15F870 for ; Sat, 2 May 2026 08:53:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=tethera.net; i=@tethera.net; q=dns/txt; s=2024; t=1777712034; h=from : to : subject : date : message-id : mime-version : content-type : from; bh=+NBkpyHgjcJdDfxC/3WP8orNcHOfErV80Pd2ZjQD6ag=; b=Q83bKvRTGWbAZ2YSOxDGKMDUngtDgGQuVeC1h0KBMh2NGp8FgaFJTfdmjSkcxd1hfhG86 Jz+ljQwc4jaaaedJ8FmJSADiBWZUee5SiFcqGfuvgvABv/sFwOZjDHsuumqfdV6KeFNTg7j cdHL//j0KhVEKKkIykw/mUw9xlVHZtTsZkb1jFgLIip6x75ZD4aHQFvCaFXuvlEkSHgNByO fkXkxV3s7jYXz+tQC16+7aoxBbdXu0Wk8PxJyFxKh0emx8JJlhu7qPdlHumjeluQt1dvC5m jZA1HHVOdcyE6Gv7TtbhSNWRMK3yLSjeFz4Lqy1DvMZ1+TKBOG7WX6rZS34Q== Received: from tethera.net (M111108027213.v4.enabler.ne.jp [111.108.27.213]) by phubs.tethera.net (Postfix) with ESMTPS id 56BFB1800F7 for ; Sat, 02 May 2026 05:53:54 -0300 (ADT) Received: (nullmailer pid 102647 invoked by uid 1000); Sat, 02 May 2026 08:53:51 -0000 From: David Bremner To: notmuch@notmuchmail.org Subject: compilation issues with gcc-15 / gcc-16 X-List-To: notmuch Date: Sat, 02 May 2026 17:53:50 +0900 Message-ID: <87pl3e2nvl.fsf@tethera.net> MIME-Version: 1.0 Message-ID-Hash: OFZB6ZJPLJRMBLWPTCAIB5SLCUBGMI43 X-Message-ID-Hash: OFZB6ZJPLJRMBLWPTCAIB5SLCUBGMI43 X-MailFrom: david@tethera.net X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-notmuch.notmuchmail.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.3 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I'm not sure if this is a problem with notmuch and gcc becoming stricter / more ambitious, or a compiler bug, but today I learned that gcc-15 15.2.0-7 (an upstream snapshot) and gcc-16 both miscompile notmuch at optimization level O2. A workaround seems to be to run configure as CFLAGS="-g -O1" ./configure I filed a Debian bug report at https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1135526 d _______________________________________________ notmuch mailing list -- notmuch@notmuchmail.org To unsubscribe send an email to notmuch-leave@notmuchmail.org