Bug 1873188

Summary:	mopac7 FTBFS with LTO
Product:	[Fedora] Fedora	Reporter:	Mamoru TASAKA <mtasaka>
Component:	mopac7	Assignee:	Jeff Law <law>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	carl, i, jdulaney
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Last Closed:	2020-08-27 16:38:06 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Bug Blocks:	1789115

Description Mamoru TASAKA 2020-08-27 15:04:48 UTC

Description of problem:
mopac7 FTBFS with LTO. Currently to avoid FTBFS, LTO is disabled.

Version-Release number of selected component (if applicable):
mopac7-1.15-34.fc33

How reproducible:
100%

Steps to Reproduce:
1. modify mopac7.spec to enable LTO again: https://src.fedoraproject.org/rpms/mopac7
2. build
3.

Actual results:
FTBFS on some archs: https://koji.fedoraproject.org/koji/taskinfo?taskID=50252140

Expected results:
Build succeeds, or some code mistakes on mopac7 are found.


Additional info:

Comment 1 Mamoru TASAKA 2020-08-27 15:05:42 UTC

Once setting assignee to Jeff to ask for help.

Comment 2 Jeff Law 2020-08-27 16:38:06 UTC

Thanks.  You've done the right thing by opting out of LTO for now.  Because you used a standard opt-out my scanner has already flagged mopac7 for deeper analysis -- at first glance I suspect we've dropped a PIC or are mixing PIC and PIE.  THe latter in particular has caused problems in a few packages as we've enabled LTO.  I won't know for sure until I dig into it further.

Given you're using a standard opt-out and thus my scanner has it flagged for deeper analysis and the immediate FTBFS issue is worked around we can close this BZ.