Debian Bug report logs - #1006844
intel-mediasdk: reproducible builds: Embeds kernel version in various .so files

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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: intel-mediasdk: reproducible builds: Embeds kernel version in various .so files

Date: Sun, 06 Mar 2022 10:01:43 -0800

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

Source: intel-mediasdk
Severity: normal
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: kernel
X-Debbugs-Cc: reproducible-bugs@lists.alioth.debian.org

various .so files embed the kernel version of the build machine:

│ │ │ ├── ./usr/lib/x86_64-linux-gnu/mfx/libmfx_vp8d_hw64.so
...
│ │ │ │ │ -mediasdk_build_info: Debian 5.10.0-11-amd64 | GNU 11.2.0 | glibc 2.33
│ │ │ │ │ +mediasdk_build_info: Debian 2.6.70-11-amd64 | GNU 11.2.0 | glibc 2.33

The attached patch fixes this by removing the use of
CMAKE_SYSTEM_VERSION, which includes the running kernel version.

This patch alone does not resolve all reproducibility issues (e.g. build
paths tested only on unstable/experimental), but with this patch
applied, intel-mediasdk should build reproducibly on
tests.reproducible-builds.org once it migrates to bookworm/testing!


Thanks for maintaining intel-mediasdk!


live well,
  vagrant

[0001-builder-FindGlobals.cmake-Do-not-embed-the-running-k.patch (text/x-diff, inline)]

From 4e30d9854924bd24622711535c564fd5d6dedbdc Mon Sep 17 00:00:00 2001
From: Vagrant Cascadian <vagrant@reproducible-builds.org>
Date: Sun, 6 Mar 2022 17:27:55 +0000
Subject: [PATCH] builder/FindGlobals.cmake: Do not embed the running kernel
 version.

Avoid using CMAKE_SYSTEM_VERSION to embed the kernel version in the
build information.

https://tests.reproducible-builds.org/debian/issues/unstable/captures_kernel_version_via_CMAKE_SYSTEM_issue.html
---
 builder/FindGlobals.cmake | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builder/FindGlobals.cmake b/builder/FindGlobals.cmake
index 6c96fc8e..df5f96f1 100644
--- a/builder/FindGlobals.cmake
+++ b/builder/FindGlobals.cmake
@@ -199,7 +199,7 @@ else()
 endif()
 
 if( MFX_SYSTEM )
-  set( BUILD_INFO "${MFX_SYSTEM} ${CMAKE_SYSTEM_VERSION} | ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}" )
+  set( BUILD_INFO "${MFX_SYSTEM} | ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}" )
 else()
   set( BUILD_INFO "${CMAKE_SYSTEM} ${CMAKE_SYSTEM_VERSION} | ${CMAKE_CXX_COMPILER_ID} ${CMAKE_CXX_COMPILER_VERSION}" )
 endif()
-- 
2.30.2

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