Debian Bug report logs - #1020743
pure-ftpd: reproducible-builds: Embedded build path in various binaries

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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: pure-ftpd: reproducible-builds: Embedded build path in various binaries

Date: Sun, 25 Sep 2022 14:57:50 -0700

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

Source: pure-ftpd
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 various binaries:

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

  /usr/bin/pure-pw

  /build/1st/pure-ftpd-1.0.50/src/alt_arc4random.c:149
  vs.
  /build/2/pure-ftpd-1.0.50/2nd/src/alt_arc4random.c:149

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

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

Thanks for maintaining pure-ftpd!

live well,
  vagrant

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

From 80d366799f5a4484582092e88315cd63d041454e Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Sun, 25 Sep 2022 21:51:30 +0000
Subject: [PATCH] debian/rules: Add -ffile-prefix map to CFLAGS to avoid
 embedding build path.

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 5efcf37..305ee2c 100755
--- a/debian/rules
+++ b/debian/rules
@@ -5,7 +5,7 @@
 # Uncomment this to turn on verbose mode.
 #export DH_VERBOSE=1
 
-cfgflags=--sysconfdir=/etc/pure-ftpd CFLAGS="-O2 -DMAX_USER_LENGTH=128U -g"
+cfgflags=--sysconfdir=/etc/pure-ftpd CFLAGS="-O2 -DMAX_USER_LENGTH=128U -g -ffile-prefix-map=$(CURDIR)=."
 optflags=--with-everything --with-largefile --with-pam --with-privsep --with-tls --with-rfc2640
 bin=pure-pw pure-statsdecode pure-pwconvert
 sbin=pure-authd pure-certd pure-ftpwho pure-uploadscript pure-quotacheck pure-ftpd pure-mrtginfo
-- 
2.37.2

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