From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?q?J=C3=A9r=C3=B4me=20Pouiller?= Date: Wed, 23 Nov 2016 12:08:03 +0100 Subject: [Buildroot] [PATCH v3 03/18] reproducible: add '-n' to gzip invocations In-Reply-To: <1479899298-14655-1-git-send-email-jezz@sysmic.org> References: <1479899298-14655-1-git-send-email-jezz@sysmic.org> Message-ID: <1479899298-14655-4-git-send-email-jezz@sysmic.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Default invocation to gzip include timestamp in output file. This feature is incompatible with BR2_REPRODUCIBLE. It is possible to disable it with '-n'. The environment variable GZIP can hold a set of default options for gzip. So instead to find all gzip invocation in build process, we just export 'GZIP=-n'. Notice bzip2, lzma and xz are not impacted by this problem. On the other hand, lzop does include timestamp and does not provide any way to disable it. This work was sponsored by `BA Robotic Systems'. Signed-off-by: J?r?me Pouiller --- Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/Makefile b/Makefile index fcb80ec..92271d9 100644 --- a/Makefile +++ b/Makefile @@ -251,6 +251,7 @@ ifeq ($(BR2_REPRODUCIBLE),y) export TZ=UTC export LANG=C export LC_ALL=C +export GZIP = -n SOURCE_DATE_GIT = $(shell GIT_DIR=$(TOPDIR)/.git $(GIT) log -1 --format=%at) export SOURCE_DATE_EPOCH = $(if $(wildcard $(TOPDIR)/.git),$(SOURCE_DATE_GIT),$(BR2_VERSION_EPOCH)) endif -- 1.9.1