Bug 926823

Summary:	media-libs/ctl-1.5.2_p20221224 fails to compile: halfExpLog.h:15:13: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
Product:	Gentoo Linux	Reporter:	Agostino Sarubbo <ago>
Component:	Current packages	Assignee:	Gentoo Media-video project <media-video>
Status:	RESOLVED FIXED
Severity:	normal	CC:	eschwartz93
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://github.com/ampas/CTL/issues/146
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	618550
Attachments:	build.log

Description Agostino Sarubbo gentoo-dev

2024-03-12 08:20:29 UTC

https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: media-libs/ctl-1.5.2_p20221224 fails to compile.
Discovered on: amd64 (internal ref: lto_tinderbox)
System: LTO-SYSTEM (https://wiki.gentoo.org/wiki/Project:Tinderbox/Common_Issues_Helper#LTO)

Info about the issue:
https://wiki.gentoo.org/wiki/Project:Tinderbox/Common_Issues_Helper#CF0014

Comment 1 Agostino Sarubbo gentoo-dev

2024-03-12 08:20:30 UTC

Created attachment 887452 [details]
build.log

build log and emerge --info

Comment 2 Agostino Sarubbo gentoo-dev

2024-03-12 08:20:32 UTC

Error(s) that match a know pattern in addition to what has been reported in the summary:


  Could not find a package configuration file provided by "AcesContainer"
FAILED: lib/IlmCtlSimd/CMakeFiles/IlmCtlSimd.dir/CtlSimdHalfExpLog.cpp.o 
FAILED: lib/IlmCtlSimd/CMakeFiles/IlmCtlSimd.dir/CtlSimdStdLibMath.cpp.o 
FAILED: lib/dpx/CMakeFiles/ctldpx.dir/dpx_raw.cc.o 
/var/tmp/portage/media-libs/ctl-1.5.2_p20221224/work/CTL-3fc4ae7a8af35d380654e573d895216fd5ba407e/lib/IlmCtlSimd/halfExpLog.h:15:13: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]

Comment 3 Larry the Git Cow gentoo-dev

2024-04-01 05:30:49 UTC

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f8d2cf57af0836438d8d2d10cadc38c6283cdd95

commit f8d2cf57af0836438d8d2d10cadc38c6283cdd95
Author:     Eli Schwartz <eschwartz93@gmail.com>
AuthorDate: 2024-04-01 03:25:48 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2024-04-01 05:29:27 +0000

    media-libs/ctl: mark as LTO-unsafe, strict-aliasing unsafe
    
    Closes: https://bugs.gentoo.org/926823
    Signed-off-by: Eli Schwartz <eschwartz93@gmail.com>
    Signed-off-by: Sam James <sam@gentoo.org>

 media-libs/ctl/ctl-1.5.2_p20221224.ebuild | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)