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Bug 855020 - app-text/mupdf-1.20.0 fails to compile (lto): cmsplugin.c:180:15: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
Summary: app-text/mupdf-1.20.0 fails to compile (lto): cmsplugin.c:180:15: error: dere...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Philipp Rösner
URL:
Whiteboard:
Keywords: PullRequest
Depends on:
Blocks: lto
  Show dependency tree
 
Reported: 2022-06-29 07:24 UTC by Agostino Sarubbo
Modified: 2022-07-28 07:01 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---

Attachments
build.log (build.log,227.08 KB, text/plain)
2022-06-29 07:24 UTC, Agostino Sarubbo 		Details
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Description Agostino Sarubbo gentoo-dev 2022-06-29 07:24:09 UTC 
https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: app-text/mupdf-1.20.0 fails to compile (lto).
Discovered on: amd64 (internal ref: lto_tinderbox)

NOTE:
This machine uses lto with CFLAGS=-flto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing
Comment 1 Agostino Sarubbo gentoo-dev 2022-06-29 07:24:11 UTC 
Created attachment 788603 [details]
build.log

build log and emerge --info
Comment 2 Larry the Git Cow gentoo-dev 2022-06-30 12:45:51 UTC 
The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e69ffe486e072430217eb921a1886f93d8d74534

commit e69ffe486e072430217eb921a1886f93d8d74534
Author:     Philipp Rösner <rndxelement@protonmail.com>
AuthorDate: 2022-06-29 19:36:48 +0000
Commit:     Florian Schmaus <flow@gentoo.org>
CommitDate: 2022-06-30 12:43:29 +0000

    app-text/mupdf: fix strict-aliasing violations
    
    Fix two issues in thirdparty/lcms2/src/cmsplugin.c regarding
    strinct-aliasing rule violations.
    
    Closes: https://bugs.gentoo.org/855020
    Signed-off-by: Philipp Rösner <rndxelement@protonmail.com>
    Closes: https://github.com/gentoo/gentoo/pull/26152
    Signed-off-by: Florian Schmaus <flow@gentoo.org>

 app-text/mupdf/files/mupdf-1.20.0-lcms2.patch | 20 ++++++++++++++++++++
 app-text/mupdf/mupdf-1.20.0.ebuild            |  1 +
 2 files changed, 21 insertions(+)
Comment 3 Florian Schmaus gentoo-dev 2022-06-30 13:35:54 UTC 
Commit was reverted by 3b49a6d09605a565ec329c53ee4e5adcc8c9c2b0 [1].

1: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=3b49a6d09605a565ec329c53ee4e5adcc8c9c2b0
Comment 4 Larry the Git Cow gentoo-dev 2022-07-19 07:41:24 UTC 
The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a8ca257f22f4ca2eddaec6b04906d2a805c86134

commit a8ca257f22f4ca2eddaec6b04906d2a805c86134
Author:     Philipp Rösner <rndxelement@protonmail.com>
AuthorDate: 2022-06-29 19:36:48 +0000
Commit:     Florian Schmaus <flow@gentoo.org>
CommitDate: 2022-07-19 07:35:54 +0000

    app-text/mupdf: fix strict-aliasing violations
    
    Fix two issues in thirdparty/lcms2/src/cmsplugin.c regarding
    strinct-aliasing rule violations.
    
    Issue: https://github.com/mm2/Little-CMS/issues/303
    PR: https://github.com/mm2/Little-CMS/pull/323
    
    Closes: https://bugs.gentoo.org/855020
    Signed-off-by: Philipp Rösner <rndxelement@protonmail.com>
    Closes: https://github.com/gentoo/gentoo/pull/26152
    Signed-off-by: Florian Schmaus <flow@gentoo.org>

 app-text/mupdf/files/mupdf-1.20.0-lcms2.patch | 69 +++++++++++++++++++++++++++
 app-text/mupdf/mupdf-1.20.0.ebuild            |  1 +
 2 files changed, 70 insertions(+)