On 2023-02-08, Stéphane Glondu wrote:
> Thank you all for your answers!
>
> Using:
>
> DEB_BUILD_MAINT_OPTIONS=reproducible=-fixfilepath,-fixdebugpath
>
> makes the package unreproducible in another way that seems difficult to fix.
Most likely reintroducing the things that the -ffile-prefix-map and
-fdebug-prefix-map was effectively removing...
We track these kinds of issues with the "records build flags" issue,
which has a description of the problem and links to more information:
https://tests.reproducible-builds.org/debian/issues/unstable/records_build_flags_issue.html
There are some potential fixes to the issue more fundamentally, but they
are currently stalled out... one of which I should probably spend some
time on after bookworm release...
You had earlier asked when this was enabled, this can mostly be found in
the dpkg changelog:
fixfilepath (a.k.a. -ffile-prefix-map) Enabled by default:
dpkg (1.20.6) unstable; urgency=medium
...
* dpkg-buildflags: Enable reproducible=fixfilepath by default. Thanks
to Vagrant Cascadian <vagrant@reproducible-builds.org>. See
https://lists.debian.org/debian-devel/2020/10/msg00222.html.
Closes: #974087
...
-- Guillem Jover <guillem@debian.org> Fri, 08 Jan 2021 04:39:40 +0100
fixfilepath (a.k.a. -ffile-prefix-map) feature added, and enabled in
reproducible builds infrastructure soon after:
dpkg (1.19.1) unstable; urgency=medium
...
- Dpkg::Vendor::Debian: Add fixfilepath support to reproducible feature.
...
-- Guillem Jover <guillem@debian.org> Wed, 26 Sep 2018 15:13:22 +0200
fixdebugpath (a.k.a. -fdebug-prefix-map) enabled by default:
dpkg (1.18.10) unstable; urgency=medium
...
- Enable fixdebugpath build flag feature by default.
Thanks to Mattia Rizzolo <mattia@debian.org>. Closes: #832179
...
-- Guillem Jover <guillem@debian.org> Sun, 31 Jul 2016 12:57:02 +0200
fixdebugpath (a.k.a. -fdebug-prefix-map) feature added, and presumably
enabled in reproducible builds infrastructure soon after:
dpkg (1.18.5) unstable; urgency=medium
...
- Add fixdebugpath to reproducible feature in Dpkg::Vendor::Debian.
Thanks to Daniel Kahn Gillmor <dkg@fifthhorseman.net>. Closes:
#819194
...
-- Guillem Jover <guillem@debian.org> Mon, 02 May 2016 04:14:57 +0200
Of course, this is only for packages respecting dpkg-buildflags.
> Le 07/02/2023 à 19:12, Mattia Rizzolo a écrit :
>> I actually propose to you to filter out the whole option from being
>> saved. [...]
>
> I've gone this way, and managed to make the package reproducible, at
> least with the build path variation.
Glad that works!
> I will upload the fixed ocaml package when the current batch of related
> packages waiting in unstable migrates to testing, hopefully in 4 days.
Thanks!
live well,
vagrant
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