Debian Bug report logs - #1003914
kget: reproducible-builds: BuildId differences triggered by RPATH

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Vagrant Cascadian <vagrant@reproducible-builds.org>

To: submit@bugs.debian.org

Subject: kget: reproducible-builds: BuildId differences triggered by RPATH

Date: Mon, 17 Jan 2022 16:41:08 -0800

[Message part 1 (text/plain, inline)]

Source: kget
Severity: normal
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: buildpath
X-Debbugs-Cc: reproducible-bugs@lists.alioth.debian.org

The RPATH contains the build path resulting in different buildid:

  https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/kget.html

The attached patch to debian/rules passes
-DCMAKE_BUILD_RPATH_USE_ORIGIN=ON via a dh_auto_configure override,
which should use a relative path for RPATH.

Alternately, updating the packaging to debhelper compat level 14 should
fix this, although it is currently an experimental compat level.

With this patch applied, kget should build reproducibly on
tests.reproducible-builds.org!

Thanks for maintaining kget!

live well,
  vagrant

[0001-debian-rules-Pass-DCMAKE_BUILD_RPATH_USE_ORIGIN-ON-v.patch (text/x-diff, inline)]

From 73003d74730ae01d17a8e7f94ce84fe0346ce1c3 Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Tue, 18 Jan 2022 00:21:29 +0000
Subject: [PATCH] debian/rules: Pass -DCMAKE_BUILD_RPATH_USE_ORIGIN=ON via
 dh_auto_configure override.

This avoids embedding the full path in RPATH, which triggers BuildId
differences.

https://tests.reproducible-builds.org/debian/issues/unstable/cmake_rpath_contains_build_path_issue.html
---
 debian/rules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/debian/rules b/debian/rules
index 5c9fac1..3c95cbe 100755
--- a/debian/rules
+++ b/debian/rules
@@ -9,7 +9,7 @@ include /usr/share/pkg-kde-tools/qt-kde-team/2/l10n-packages.mk
 	dh $@ --with kf5
 
 override_dh_auto_configure:
-	dh_auto_configure -Skf5 -- -DBUILD_TESTING=OFF
+	dh_auto_configure -Skf5 -- -DBUILD_TESTING=OFF -DCMAKE_BUILD_RPATH_USE_ORIGIN=ON
 
 override_dh_auto_test:
 	:
-- 
2.34.1

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