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GET /api/patches/320346/?format=api
{ "id": 320346, "url": "http://patchwork.ozlabs.org/api/patches/320346/?format=api", "web_url": "http://patchwork.ozlabs.org/project/buildroot/patch/1392371709-26662-7-git-send-email-fabio.porcedda@gmail.com/", "project": { "id": 27, "url": "http://patchwork.ozlabs.org/api/projects/27/?format=api", "name": "Buildroot development", "link_name": "buildroot", "list_id": "buildroot.buildroot.org", "list_email": "buildroot@buildroot.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1392371709-26662-7-git-send-email-fabio.porcedda@gmail.com>", "list_archive_url": null, "date": "2014-02-14T09:55:08", "name": "[v13,6/7] Makefile: update comment about top-level parallel Makefile", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "81047e487bb464e9166b64adcb4081dfdacf29dd", "submitter": { "id": 13215, "url": "http://patchwork.ozlabs.org/api/people/13215/?format=api", "name": "Fabio Porcedda", "email": "fabio.porcedda@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/buildroot/patch/1392371709-26662-7-git-send-email-fabio.porcedda@gmail.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/320346/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/320346/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<buildroot-bounces@busybox.net>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "buildroot@lists.busybox.net" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "buildroot@osuosl.org" ], "Received": [ "from silver.osuosl.org (silver.osuosl.org [140.211.166.136])\n\tby ozlabs.org (Postfix) with ESMTP id 2AD502C0098\n\tfor <incoming@patchwork.ozlabs.org>;\n\tFri, 14 Feb 2014 20:55:45 +1100 (EST)", "from localhost (localhost [127.0.0.1])\n\tby silver.osuosl.org (Postfix) with ESMTP id A827033004;\n\tFri, 14 Feb 2014 09:55:41 +0000 (UTC)", "from silver.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id NkcgQ5D5agp5; 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\n\tFri, 14 Feb 2014 01:55:34 -0800 (PST)", "From": "Fabio Porcedda <fabio.porcedda@gmail.com>", "To": "buildroot@uclibc.org", "Date": "Fri, 14 Feb 2014 10:55:08 +0100", "Message-Id": "<1392371709-26662-7-git-send-email-fabio.porcedda@gmail.com>", "X-Mailer": "git-send-email 1.8.5.2", "In-Reply-To": "<1392371709-26662-1-git-send-email-fabio.porcedda@gmail.com>", "References": "<1392371709-26662-1-git-send-email-fabio.porcedda@gmail.com>", "Cc": "Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,\n\tDallas Clement <dallas.a.clement@gmail.com>", "Subject": "[Buildroot] [PATCH v13 6/7] Makefile: update comment about\n\ttop-level parallel Makefile", "X-BeenThere": "buildroot@busybox.net", "X-Mailman-Version": "2.1.14", "Precedence": "list", "List-Id": "Discussion and development of buildroot <buildroot.busybox.net>", "List-Unsubscribe": "<http://lists.busybox.net/mailman/options/buildroot>,\n\t<mailto:buildroot-request@busybox.net?subject=unsubscribe>", "List-Archive": "<http://lists.busybox.net/pipermail/buildroot>", "List-Post": "<mailto:buildroot@busybox.net>", "List-Help": "<mailto:buildroot-request@busybox.net?subject=help>", "List-Subscribe": "<http://lists.busybox.net/mailman/listinfo/buildroot>,\n\t<mailto:buildroot-request@busybox.net?subject=subscribe>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "buildroot-bounces@busybox.net", "Sender": "buildroot-bounces@busybox.net" }, "content": "After the latest patches top-level parallel Makefile is working but\nthere is still an issue when a package has an unspecified optional\ndependency so change the comment to explain that.\n\nSigned-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>\n---\n Makefile | 15 ++++++++++++++-\n 1 file changed, 14 insertions(+), 1 deletion(-)", "diff": "diff --git a/Makefile b/Makefile\nindex c89107a..ddb1f6a 100644\n--- a/Makefile\n+++ b/Makefile\n@@ -42,7 +42,20 @@ export HOSTARCH := $(shell uname -m | \\\n \t -e s/macppc/powerpc/\\\n \t -e s/sh.*/sh/)\n \n-# This top-level Makefile can *not* be executed in parallel\n+# Parallel execution of this Makefile is disabled because it changes\n+# the packages building order, that can be a problem for two reasons:\n+# - If a package has an unspecified optional dependency and that\n+# dependency is present when the package is built, it is used,\n+# otherwise it isn't (but compilation happily proceeds) so the end\n+# result will differ if the order is swapped due to parallel\n+# building.\n+# - Also changing the building order can be a problem if two packages\n+# manipulate the same file in the target directory.\n+#\n+# Taking into account the above considerations, if you still want to execute\n+# this top-level Makefile in parallel comment the \".NOTPARALLEL\" line and\n+# build using the following command:\n+#\tmake BR2_JLEVEL= -j$((`getconf _NPROCESSORS_ONLN`+1))\n .NOTPARALLEL:\n \n # absolute path\n", "prefixes": [ "v13", "6/7" ] }