Bug 1947838

Summary:	Software using glibmm and gcc11 with C++20 fails to compile
Product:	[Fedora] Fedora	Reporter:	Kjell Irgens <kjell>
Component:	glibmm24	Assignee:	Kalev Lember <klember>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	34	CC:	debarshir, karlthered, klember
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	All
Whiteboard:
Fixed In Version:	glibmm24-2.66.0-2.fc34	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-04-24 20:11:13 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Embargoed:

Description Kjell Irgens 2021-04-09 11:28:32 UTC

Description of problem:

Software using glibmm headers and C++20 does not compile

How reproducible:

See https://gitlab.gnome.org/GNOME/glibmm/-/merge_requests/50

Additional info:

Sounds like upstream glibmm-2.66.1 will include the fix.

You should consider adding this as a patch until you update to 2.66.

Comment 1 Kalev Lember 2021-04-09 14:12:34 UTC

Sure, let me backport this. Thanks for filing the ticket!

(I also never noticed that glibmm 2.66 was released -- let me update to that as well while at it.)

Comment 2 Fedora Update System 2021-04-13 09:56:04 UTC

FEDORA-2021-1ae11d7407 has been submitted as an update to Fedora 34. https://bodhi.fedoraproject.org/updates/FEDORA-2021-1ae11d7407

Comment 3 Fedora Update System 2021-04-13 20:47:53 UTC

FEDORA-2021-1ae11d7407 has been pushed to the Fedora 34 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-1ae11d7407`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-1ae11d7407

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Kjell Irgens 2021-04-14 08:46:37 UTC

Sorry Kalev, but the patch does not work.

The variant.h and variant_basictypes.h files are already generated in the tarball, so it doesn't help to patch  variant.hg and variant_basictypes.h.m4.

You need to patch variant.h and variant_basictypes.h under untracked/ directly.

Comment 5 Kalev Lember 2021-04-14 08:48:05 UTC

Ah, I see. Let me fix it up quickly.

Comment 6 Fedora Update System 2021-04-14 13:24:43 UTC

FEDORA-2021-1ae11d7407 has been submitted as an update to Fedora 34. https://bodhi.fedoraproject.org/updates/FEDORA-2021-1ae11d7407

Comment 7 Kalev Lember 2021-04-14 13:26:22 UTC

Can you try if it glibmm24-2.66.0-2.fc34 works better? I update it to patch variant.h and variant_basictypes.h directly.

Comment 8 Kjell Irgens 2021-04-14 14:25:24 UTC

Much better, i.e. it works :)

Comment 9 Fedora Update System 2021-04-14 17:14:00 UTC

FEDORA-2021-1ae11d7407 has been pushed to the Fedora 34 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2021-1ae11d7407`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2021-1ae11d7407

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 10 Kalev Lember 2021-04-14 17:41:55 UTC

Great :) Thanks for checking!

Comment 11 Fedora Update System 2021-04-24 20:11:13 UTC

FEDORA-2021-1ae11d7407 has been pushed to the Fedora 34 stable repository.
If problem still persists, please make note of it in this bug report.