Debian Bug report logs - #1020653
pal: reproducible-builds: Embedded build path in /usr/bin/pal

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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: pal: reproducible-builds: Embedded build path in /usr/bin/pal

Date: Sat, 24 Sep 2022 13:59:41 -0700

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

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

The build path is embedded in /usr/bin/pal:

  https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/diffoscope-results/pal.html

  /build/1st/pal-0.4.3/src/main.c:704
  vs.
  /build/2/pal-0.4.3/2nd/src/main.c:704

The attached patch fixes this by passing the -ffile-prefix-map argument
via CFLAGS in debian/rules.

Another option that *might* fix this and other issues would be to switch
to dh and a recent debhelper compat level.

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

Thanks for maintaining pal!

live well,
  vagrant

[0001-debian-rules-Pass-ffile-prefix-map-via-CFLAGS.patch (text/x-diff, inline)]

From 521957ae75c17b5be7a97ecf78f1a8528e097a53 Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Sat, 24 Sep 2022 20:55:50 +0000
Subject: [PATCH] debian/rules: Pass -ffile-prefix-map via CFLAGS.

https://reproducible-builds.org/docs/build-path/
---
 debian/rules | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/debian/rules b/debian/rules
index 1d8260c..311ac0a 100755
--- a/debian/rules
+++ b/debian/rules
@@ -7,7 +7,7 @@
 
 include /usr/share/quilt/quilt.make
 
-CFLAGS = -Wall -g
+CFLAGS = -Wall -g -ffile-prefix-map=$(CURDIR)=.
 
 ifneq (,$(findstring noopt,$(DEB_BUILD_OPTIONS)))
 	CFLAGS += -O0
-- 
2.37.2

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