Debian Bug report logs - #1020656
nvram-wakeup: reproducible-builds: Embedded build path in /usr/sbin/nvram-wakeup

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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: nvram-wakeup: reproducible-builds: Embedded build path in /usr/sbin/nvram-wakeup

Date: Sat, 24 Sep 2022 14:21:49 -0700

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

Source: nvram-wakeup
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/sbin/nvram-wakeup:

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

  /build/1st/nvram-wakeup-1.1/nvram-wakeup.c:90
  vs.
  /build/2/nvram-wakeup-1.1/2nd/nvram-wakeup.c:90

The attached patch fixes this by passing the -ffile-prefix-map argument
via CFLAGS in the upstream Makefile, and should be added to
debian/patches.


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


Thanks for maintaining nvram-wakeup!


live well,
  vagrant

[makefile-add--ffile-prefix-map-to-cflags.patch (text/x-diff, inline)]

From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Sat, 24 Sep 2022 21:13:09 +0000
X-Dgit-Generated: 1.1-4 756e5887d32bec866c709eed23134f870d35f931
Subject: Makefile: Add -ffile-prefix-map to CFLAGS to avoid embedding build

path.

https://reproducible-builds.org/docs/build-path/

---

--- nvram-wakeup-1.1.orig/Makefile
+++ nvram-wakeup-1.1/Makefile
@@ -42,6 +42,7 @@ VERSION = $(shell sed -ne '/define VERSI
 CC = gcc
 DEFS = -D_GNU_SOURCE
 CFLAGS = -O2 -Wall -Wstrict-prototypes -g -pedantic $(DEFS)
+CFLAGS += -ffile-prefix-map=$(CURDIR)=.
 INSTALL = install
 INSTALL_STRIP = $(INSTALL) -s
 

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