Source: liblopsub Severity: normal Tags: patch User: reproducible-bui...@lists.alioth.debian.org Usertags: timestamps X-Debbugs-Cc: reproducible-b...@lists.alioth.debian.org
The build timestamp is included in various gzip headers: https://tests.reproducible-builds.org/debian/rb-pkg/trixie/amd64/diffoscope-results/liblopsub.html /usr/share/doc/liblopsub-dev/changelog.Debian.gz gzip·compressed·data,·was·"changelog.Debian",·last·modified:·Mon·May·20·01:26:32·2024,·max·compression,·from·Unix vs. gzip·compressed·data,·was·"changelog.Debian",·last·modified:·Mon·Apr·17·19:04:49·2023,·max·compression,·from·Unix /usr/share/man/man1/lopsubgen.1.gz gzip·compressed·data,·was·"lopsubgen.1",·last·modified:·Mon·May·20·01:26:29·2024,·max·compression,·from·Unix vs. gzip·compressed·data,·was·"lopsubgen.1",·last·modified:·Mon·Apr·17·19:04:45·2023,·max·compression,·from·Unix The attached two patches (one patching the upstream Makefile, the other patching debian/rules) fix this by passing -n to the gzip calls used to compress changelog.Debian and the various manpages. According to my local tests, with these two patches applied liblopsub should build reproducibly on tests.reproducible-builds.org once it migrates to debian/trixie! This alone does not resolve all reproducibilitiy issues (e.g. build paths, tested in unstable and experimental). Thanks for maintaining liblopsub! live well, vagrant
From f92b3e462e3665bf1a4f8469ddd5ebf0c19f3f26 Mon Sep 17 00:00:00 2001 From: Vagrant Cascadian <vagr...@reproducible-builds.org> Date: Tue, 27 Jun 2023 12:41:36 -0700 Subject: [PATCH 1/3] Makefile: Pass -n to gzip to avoid embedding timestamps. --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index d1f89b1..f139597 100644 --- a/Makefile +++ b/Makefile @@ -18,7 +18,7 @@ AR := ar GROFF := groff CP := cp INSTALL := install -GZIP := gzip -f9 +GZIP := gzip -n -f9 ZCAT := zcat DATE_FMT := +%B %Y -- 2.39.2
From e95dc3bf4cf0beb6afdd23a34c9b7923ffbd0c24 Mon Sep 17 00:00:00 2001 From: Vagrant Cascadian <vagr...@reproducible-builds.org> Date: Tue, 27 Jun 2023 12:42:16 -0700 Subject: [PATCH 2/3] debian/rules: Pass -n to gzip to avoid embedding timestamps. --- debian/rules | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/debian/rules b/debian/rules index 3ba7a74..1263826 100755 --- a/debian/rules +++ b/debian/rules @@ -49,8 +49,8 @@ binary: build $(INST_FILE) debian/copyright $(DEVDOCS_DIR)/copyright $(INST_FILE) debian/changelog $(DOCS_DIR)/changelog.Debian $(INST_FILE) debian/changelog $(DEVDOCS_DIR)/changelog.Debian - gzip -f9 $(DOCS_DIR)/changelog.Debian - gzip -f9 $(DEVDOCS_DIR)/changelog.Debian + gzip -n -f9 $(DOCS_DIR)/changelog.Debian + gzip -n -f9 $(DEVDOCS_DIR)/changelog.Debian dh_makeshlibs dh_shlibdeps dh_strip -- 2.39.2
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