{"id":25622,"url":"https://patchwork.libcamera.org/api/patches/25622/?format=json","web_url":"https://patchwork.libcamera.org/patch/25622/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260105093130.1177121-1-barnabas.pocze@ideasonboard.com>","date":"2026-01-05T09:31:30","name":"[libcamera-ci,v1] Force libc++ with meson native files","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"f3ccdae7025d6069e399690f6a8e2e5ba995e5c0","submitter":{"id":216,"url":"https://patchwork.libcamera.org/api/people/216/?format=json","name":"Barnabás Pőcze","email":"barnabas.pocze@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/25622/mbox/","series":[{"id":5681,"url":"https://patchwork.libcamera.org/api/series/5681/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5681","date":"2026-01-05T09:31:30","name":"[libcamera-ci,v1] Force libc++ with meson native files","version":1,"mbox":"https://patchwork.libcamera.org/series/5681/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/25622/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/25622/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 3DA3EBDCBF\n\tfor ;\n\tMon, 5 Jan 2026 09:31:35 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id DCD7F61FBC;\n\tMon, 5 Jan 2026 10:31:34 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 3B3AD61F84\n\tfor ;\n\tMon, 5 Jan 2026 10:31:34 +0100 (CET)","from pb-laptop.local (185.221.143.114.nat.pool.zt.hu\n\t[185.221.143.114])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 35DEC10D\n\tfor ;\n\tMon, 5 Jan 2026 10:31:14 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"LJeVTctg\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1767605474;\n\tbh=jJ5v41v5UlXkgqH/naKKn9XrqbAf5sYCShlR12LlRvg=;\n\th=From:To:Subject:Date:From;\n\tb=LJeVTctghJUkGpLSsd2RsQA5oxOnzBfLp7VzGsrOlppKPsd1saAT95XN8paVV4ABy\n\tlVlz13s0C4tg93VmaZRA2I7O5bLPtKqftQO+JHwqhoxpRz4j/GPBzmaoIuvsuhT3J6\n\tgIB6Y3h09S3ek1otL+X5hZqCK2+LAWIib8r7D9xk=","From":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","To":"libcamera-devel@lists.libcamera.org","Subject":"[libcamera-ci] [PATCH v1] Force libc++ with meson native files","Date":"Mon, 5 Jan 2026 10:31:30 +0100","Message-ID":"<20260105093130.1177121-1-barnabas.pocze@ideasonboard.com>","X-Mailer":"git-send-email 2.52.0","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Currently libcamera's meson scripts force the usage of libc++ if clang\nis detected as the compiler. This is not ideal because it cannot be\noverridden by the user. So instead of depending on this behaviour\nfor libc++ testing, use meson native files to force the use of\nlibc++ with clang.\n\nUnfortunately on debian 13, due a meson bug, a workaround is needed\nto avoid a macro redefinition error[0].\n\n[0]: https://github.com/mesonbuild/meson/issues/13812\n\nLink: https://gitlab.freedesktop.org/camera/libcamera/-/issues/226\nSigned-off-by: Barnabás Pőcze \n---\n .gitlab-ci/meson/clang.native | 3 +++\n .gitlab-ci/meson/libc++.native | 3 +++\n gitlab-ci.yml | 4 ++++\n 3 files changed, 10 insertions(+)\n create mode 100644 .gitlab-ci/meson/clang.native\n create mode 100644 .gitlab-ci/meson/libc++.native\n\n--\n2.52.0","diff":"diff --git a/.gitlab-ci/meson/clang.native b/.gitlab-ci/meson/clang.native\nnew file mode 100644\nindex 0000000..f00b0f0\n--- /dev/null\n+++ b/.gitlab-ci/meson/clang.native\n@@ -0,0 +1,3 @@\n+[binaries]\n+c = ['clang']\n+cpp = ['clang++']\ndiff --git a/.gitlab-ci/meson/libc++.native b/.gitlab-ci/meson/libc++.native\nnew file mode 100644\nindex 0000000..9c99d5a\n--- /dev/null\n+++ b/.gitlab-ci/meson/libc++.native\n@@ -0,0 +1,3 @@\n+[built-in options]\n+cpp_args = ['-stdlib=libc++']\n+cpp_link_args = ['-stdlib=libc++']\ndiff --git a/gitlab-ci.yml b/gitlab-ci.yml\nindex 262d519..2e2c4c9 100644\n--- a/gitlab-ci.yml\n+++ b/gitlab-ci.yml\n@@ -30,6 +30,8 @@ variables:\n # clang fails to link with ASan if --no-undefined is enabled.\n MESON_CLANG_OPTIONS: >-\n -D b_lundef=false\n+ --native-file $CI_PROJECT_DIR/.gitlab-ci/meson/clang.native\n+ --native-file $CI_PROJECT_DIR/.gitlab-ci/meson/libc++.native\n PACKAGES: >-\n ca-certificates\n git\n@@ -322,6 +324,8 @@ build-full:debian:13:\n ${MESON_ALL_OPTIONS}\n ${MESON_CLANG_OPTIONS}\n -D qcam=disabled\n+ -D cpp_debugstl=false\n+ # `cpp_debugstl=false` needed due to https://github.com/mesonbuild/meson/issues/13812\n\n build-full:arch:\n extends:\n","prefixes":["libcamera-ci","v1"]}