Debian Bug report logs - #1020886
chise-base: reproducible-builds: build path embedded in /usr/bin/chise-base

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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: chise-base: reproducible-builds: build path embedded in /usr/bin/chise-base

Date: Tue, 27 Sep 2022 15:40:08 -0700

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

Source: chise-base
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/lib/libchise.so.1.1.0:

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

  /build/1st/chise-base-0.3.0/libchise/chise.c:93
  vs.
  /build/2/chise-base-0.3.0/2nd/libchise/chise.c:93

The attached patch to debian/rules fixes this by adding
-ffile-prefix-map to CFLAGS.

According to my local tests, with this patch applied, chise-base should build
reproducibly on tests.reproducible-builds.org!

Thanks for maintaining chise-base!

live well,
  vagrant

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

From 97e29426213130eada2c312b16696ef197e0c910 Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Tue, 27 Sep 2022 22:35:27 +0000
Subject: [PATCH] debian/rules: Add -ffile-prefix-map to CFLAGS to avoid
 embedding build paths.

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 bde7783..3c62397 100755
--- a/debian/rules
+++ b/debian/rules
@@ -13,7 +13,7 @@ DEB_HOST_GNU_TYPE   ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
 DEB_BUILD_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
 
 
-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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