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Bug#1011481: tamil-gtk2im: reproducible-builds: embedded build paths



Source: tamil-gtk2im
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/tamil-gtk2im.html

  /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/immodules/anjal-uni.so

  /build/1st/tamil-gtk2im-2.2/anjal-uni.c:112
  vs.
  /build/2/tamil-gtk2im-2.2/2nd/anjal-uni.c:112


The attached patch fixes this by passing -ffile-prefix-map to gcc in
compile-gtk2im.sh, which avoids embedding the absolute build path.


With this patch applied, tamil-gtk2im should build reproducibly on
tests.reproducible-builds.org!


live well,
  vagrant
From 1003f565988783e16a7f84e66d0e719dff956bba Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Mon, 23 May 2022 20:35:37 +0000
Subject: [PATCH] compile-gtk2im.sh: Pass -ffile-prefix-map to compiler.

This avoids embedding the build path in the binaries.

https://reproducible-builds.org/docs/build-path/
---
 compile-gtk2im.sh | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/compile-gtk2im.sh b/compile-gtk2im.sh
index 77900a2..13de96a 100755
--- a/compile-gtk2im.sh
+++ b/compile-gtk2im.sh
@@ -1,51 +1,51 @@
 #!/bin/sh
 
-libtool --mode=compile gcc -DHAVE_CONFIG_H \
+libtool --mode=compile gcc -ffile-prefix-map=$(pwd)=. -DHAVE_CONFIG_H \
 	`pkg-config --cflags gtk+-2.0` \
 	-g -O2 -Wall -D_GNU_SOURCE -c \
 	-o tamil99-tsc.lo tamil99-tsc.c
 
-libtool --mode=link gcc  -g -O2 -Wall -D_GNU_SOURCE \
+libtool --mode=link gcc -ffile-prefix-map=$(pwd)=. -g -O2 -Wall -D_GNU_SOURCE \
 	-o tamil99-tsc.la -rpath ~/.gtk-2.0/immodules \
 	-rpath ~/.gtk-2.0/immodules -avoid-version -module \
 	tamil99-tsc.lo `pkg-config --libs gtk+-2.0`
 
-libtool --mode=compile gcc -DHAVE_CONFIG_H \
+libtool --mode=compile gcc -ffile-prefix-map=$(pwd)=. -DHAVE_CONFIG_H \
 	`pkg-config --cflags gtk+-2.0` \
 	-g -O2 -Wall -D_GNU_SOURCE -c \
 	-o tamil99-uni.lo tamil99-uni.c
 
-libtool --mode=link gcc  -g -O2 -Wall -D_GNU_SOURCE \
+libtool --mode=link gcc -ffile-prefix-map=$(pwd)=. -g -O2 -Wall -D_GNU_SOURCE \
 	-o tamil99-uni.la -rpath ~/.gtk-2.0/immodules \
 	-rpath ~/.gtk-2.0/immodules -avoid-version -module \
 	tamil99-uni.lo `pkg-config --libs gtk+-2.0`
 
-libtool --mode=compile gcc -DHAVE_CONFIG_H \
+libtool --mode=compile gcc -ffile-prefix-map=$(pwd)=. -DHAVE_CONFIG_H \
 	`pkg-config --cflags gtk+-2.0` \
 	-g -O2 -Wall -D_GNU_SOURCE -c \
 	-o tavpim-tsc.lo tavpim-tsc.c
 
-libtool --mode=link gcc  -g -O2 -Wall -D_GNU_SOURCE \
+libtool --mode=link gcc -ffile-prefix-map=$(pwd)=. -g -O2 -Wall -D_GNU_SOURCE \
 	-o tavpim-tsc.la -rpath ~/.gtk-2.0/immodules \
 	-rpath ~/.gtk-2.0/immodules -avoid-version -module \
 	tavpim-tsc.lo `pkg-config --libs gtk+-2.0`
 
-libtool --mode=compile gcc -DHAVE_CONFIG_H \
+libtool --mode=compile gcc -ffile-prefix-map=$(pwd)=. -DHAVE_CONFIG_H \
 	`pkg-config --cflags gtk+-2.0` \
 	-g -O2 -Wall -D_GNU_SOURCE -c \
 	-o tavpim-uni.lo tavpim-uni.c
 
-libtool --mode=link gcc  -g -O2 -Wall -D_GNU_SOURCE \
+libtool --mode=link gcc -ffile-prefix-map=$(pwd)=. -g -O2 -Wall -D_GNU_SOURCE \
 	-o tavpim-uni.la -rpath ~/.gtk-2.0/immodules \
 	-rpath ~/.gtk-2.0/immodules -avoid-version -module \
 	tavpim-uni.lo `pkg-config --libs gtk+-2.0`	
 
-libtool --mode=compile gcc -DHAVE_CONFIG_H \
+libtool --mode=compile gcc -ffile-prefix-map=$(pwd)=. -DHAVE_CONFIG_H \
 	`pkg-config --cflags gtk+-2.0` \
 	-g -O2 -Wall -D_GNU_SOURCE -c \
 	-o anjal-uni.lo anjal-uni.c
 
-libtool --mode=link gcc  -g -O2 -Wall -D_GNU_SOURCE \
+libtool --mode=link gcc -ffile-prefix-map=$(pwd)=. -g -O2 -Wall -D_GNU_SOURCE \
 	-o anjal-uni.la -rpath ~/.gtk-2.0/immodules \
 	-rpath ~/.gtk-2.0/immodules -avoid-version -module \
 	anjal-uni.lo `pkg-config --libs gtk+-2.0`	
-- 
2.36.1

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