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Bug 1984679

Summary:	Backport fix to remove arch-specific info from %_vpath_builddir macro
Product:	Red Hat Enterprise Linux 9	Reporter:	Neal Gompa <ngompa13>
Component:	redhat-rpm-config	Assignee:	Michal Domonkos <mdomonko>
Status:	CLOSED ERRATA	QA Contact:	Jan Blazek <jblazek>
Severity:	unspecified	Docs Contact:
Priority:	high
Version:	CentOS Stream	CC:	bstinson, dmarchan, fleitner, fweimer, jwboyer, mdomonko, tredaelli
Target Milestone:	beta	Keywords:	Triaged
Target Release:	---	Flags:	pm-rhel: mirror+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	redhat-rpm-config-190-1.el9	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2022-05-17 13:35:55 UTC	Type:	Enhancement
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2012289, 2024994
Deadline:	2022-01-10

Description Neal Gompa 2021-07-21 20:33:24 UTC

Description of problem:
The %_vpath_builddir macro currently is set to %_target_platform, which varies across architectures. This adds needless pain for build reproducibility when tools like Doxygen wind up embedded build paths into content metadata, causing noarch doc subpackages of archful packages to fail their payload comparisons.

This was fixed in redhat-rpm-config in Fedora by changing %_vpath_builddir to not include archful information: https://src.fedoraproject.org/rpms/redhat-rpm-config/c/e0cfcc0fc76a7642faabb25c5e348d6a1314ace2

Please make this change in RHEL 9 as well.

Comment 1 Neal Gompa 2021-07-21 20:36:03 UTC

Merge request proposed: https://gitlab.com/redhat/centos-stream/rpms/redhat-rpm-config/-/merge_requests/6

Comment 2 Florian Weimer 2021-07-30 14:13:43 UTC

Do we still plan to make this change?

Some fallout has been reported on the Fedora devel list: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/4BBDYVATUZ55P4KQRRQKAQJPKPK7BAQH/

If we plan to make this change, I recommend a test mass rebuild to see its impact on buildability across the distribution.

Comment 3 Neal Gompa 2021-07-30 14:28:15 UTC

(In reply to Florian Weimer from comment #2)
> Do we still plan to make this change?
> 
> Some fallout has been reported on the Fedora devel list:
> https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/
> message/4BBDYVATUZ55P4KQRRQKAQJPKPK7BAQH/
> 
> If we plan to make this change, I recommend a test mass rebuild to see its
> impact on buildability across the distribution.

You don't even need to go that far, just check for things using CMake or Meson that *also* try to use %_target_platform macro instead of %_vpath_builddir. Substituting one for the other is correct regardless of this change.

Comment 4 Michal Domonkos 2021-07-30 14:51:42 UTC

Or just download the whole archive of .specs and do a grep? :)

Which makes me wonder - do we have something akin to https://src.fedoraproject.org/repo/rpm-specs-latest.tar.xz, but for RHEL/CentOS?

Comment 5 Timothy Redaelli 2021-11-22 11:41:19 UTC

This is blocking us to do newer dpdk builds, since dpdk uses sphinx and the generated html files are different across different architectures (dpdk-docs is, of course, noarch).

Comment 6 Neal Gompa 2021-12-02 13:52:47 UTC

(In reply to Timothy Redaelli from comment #5)
> This is blocking us to do newer dpdk builds, since dpdk uses sphinx and the
> generated html files are different across different architectures (dpdk-docs
> is, of course, noarch).

Sphinx and Doxygen are what drove me over the edge to fix this in Fedora and RHEL in the first place. :)

Comment 16 errata-xmlrpc 2022-05-17 13:35:55 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: redhat-rpm-config), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:2544