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receiver= Received: from smtpout-03.galae.net (smtpout-03.galae.net [185.246.85.4]) by smtp4.osuosl.org (Postfix) with ESMTPS id 7215C403D3 for ; Wed, 16 Sep 2026 21:46:59 +0000 (UTC) Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-03.galae.net (Postfix) with ESMTPS id 71FF34E40762; Wed, 16 Sep 2026 21:46:57 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 361F260337; Wed, 16 Sep 2026 21:46:57 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id A236511C79C1A; Wed, 16 Sep 2026 23:46:50 +0200 (CEST) Date: Wed, 16 Sep 2026 23:46:49 +0200 To: Bernd Kuhls Cc: buildroot@buildroot.org, Aleksandr Makarov Message-ID: References: <20260620070343.86834-1-bernd@kuhls.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260620070343.86834-1-bernd@kuhls.net> X-Last-TLS-Session-Version: TLSv1.3 Subject: Re: [Buildroot] [PATCH 1/1] package/cpp-httplib: depends on BR2_TOOLCHAIN_HAS_SYNC_1 X-BeenThere: buildroot@buildroot.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Discussion and development of buildroot List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Thomas Petazzoni via buildroot Reply-To: Thomas Petazzoni Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: buildroot-bounces@buildroot.org Sender: "buildroot" On Sat, Jun 20, 2026 at 09:03:43AM +0200, Bernd Kuhls wrote: > Buildroot commit 8dad17ea06260ef0bd23eebc47c95a8510310bf5 bumped the > package from 0.27.0 to 0.37.2. This bump includes upstream commit > https://github.com/yhirose/cpp-httplib/commit/464867a9cedef2b6185e25e3e912d3f796fe58fd > which added WebSocket support to version 0.33.0 and causes a build error > detected by the Gitlab pipelines for bootlin-sparc-uclibc: > > /builds/bkuhls/buildroot/br-test-pkg/bootlin-sparc-uclibc/host/opt/ext-toolchain/bin/../lib/gcc/sparc-buildroot-linux-uclibc/14.3.0/../../../../sparc-buildroot-linux-uclibc/bin/ld: > /tmp/cciyXsAR.ltrans6.ltrans.o: in function > `httplib::ws::WebSocket::close(httplib::ws::CloseStatus, > std::__cxx11::basic_string, > std::allocator > const&)': > :(.text+0x6408): undefined reference to `__atomic_exchange_1' Thanks for the patch. However, I believe you're making a confusion between __sync builtins (https://gcc.gnu.org/onlinedocs/gcc/_005f_005fsync-Builtins.html) and __atomic builtins (https://gcc.gnu.org/onlinedocs/gcc/_005f_005fatomic-Builtins.html). __sync builtins are in Buildroot covered by the BR2_TOOLCHAIN_HAS_SYNC_xyz options. On the other hand, __atomic built-ins are covered by BR2_TOOLCHAIN_HAS_ATOMIC and BR2_TOOLCHAIN_HAS_LIBATOMIC. So what you want to do here is: 1. Add depends on BR2_TOOLCHAIN_HAS_ATOMIC in Config.in 2. Ensure that the code is linked against libatomic if BR2_TOOLCHAIN_HAS_LIBATOMIC Could you have a look into this? Thanks a lot! Thomas -- Thomas Petazzoni, co-owner and CEO, Bootlin Embedded Linux and Kernel engineering and training https://bootlin.com _______________________________________________ buildroot mailing list buildroot@buildroot.org https://lists.buildroot.org/mailman/listinfo/buildroot