Source: sjeng
Severity: normal
Tags: patch
User: reproducible-bui...@lists.alioth.debian.org
Usertags: buildpath
X-Debbugs-Cc: reproducible-b...@lists.alioth.debian.org

The buildid differs in /usr/games/sjeng when built with a different
build path:

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

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

Alternately, adapting this packge to use the default flags passed via
dpkg-buildflags should solve this issue as well.

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

Thanks for maintaining sjeng!

live well,
  vagrant
From a81c558a587c48c3fed1dd8fd2fa6b74c54e7608 Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagr...@reproducible-builds.org>
Date: Sun, 25 Sep 2022 23:38:45 +0000
Subject: [PATCH] debian/rules: Pass -ffile-prefix-map via 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 0b4d87b..67dfb4b 100755
--- a/debian/rules
+++ b/debian/rules
@@ -14,7 +14,7 @@ export DEB_HOST_GNU_TYPE   ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
 export DEB_BUILD_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
 
 CC = gcc
-CFLAGS = -Wall -W -g
+CFLAGS = -Wall -W -g -ffile-prefix-map=$(CURDIR)=.
 LDFLAGS = 
 
 # C++ is not used in this version, but configure looks for it
-- 
2.37.2

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