Gentoo Websites Logo
Go to: Gentoo Home Documentation Forums Lists Bugs Planet Store Wiki Get Gentoo!
Bug 854507 - app-emulation/86Box-3.5 fails to compile (lto): codegen_ops_fpu.h:627:32: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
Summary: app-emulation/86Box-3.5 fails to compile (lto): codegen_ops_fpu.h:627:32: err...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: Conrad Kostecki
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: lto
  Show dependency tree
 
Reported: 2022-06-27 06:13 UTC by Agostino Sarubbo
Modified: 2022-07-16 20:42 UTC (History)
0 users

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

Attachments
build.log (build.log,246.85 KB, text/plain)
2022-06-27 06:13 UTC, Agostino Sarubbo 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Agostino Sarubbo gentoo-dev 2022-06-27 06:13:51 UTC 
https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: app-emulation/86Box-3.5 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 2022-06-27 06:13:53 UTC 
Created attachment 787862 [details]
build.log

build log and emerge --info
Comment 2 Agostino Sarubbo gentoo-dev 2022-06-27 06:13:55 UTC 
Error(s) that match a know pattern in addition to what has been reported in the summary:


-- Could NOT find ECM (missing: ECM_DIR)
FAILED: src/codegen/CMakeFiles/dynarec.dir/codegen_ops.c.o 
/var/tmp/portage/app-emulation/86Box-3.5/work/86Box-3.5/src/codegen/codegen_ops_fpu.h:627:32: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
Comment 3 Larry the Git Cow gentoo-dev 2022-07-16 20:41:08 UTC 
The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a3c20be17f9819a3a50a73627224eaa6aca694b1

commit a3c20be17f9819a3a50a73627224eaa6aca694b1
Author:     Conrad Kostecki <conikost@gentoo.org>
AuthorDate: 2022-07-16 19:52:48 +0000
Commit:     Conrad Kostecki <conikost@gentoo.org>
CommitDate: 2022-07-16 20:40:51 +0000

    app-emulation/86Box: filter lto
    
    Closes: https://bugs.gentoo.org/854507
    Signed-off-by: Conrad Kostecki <conikost@gentoo.org>

 app-emulation/86Box/86Box-3.6.ebuild | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
Comment 4 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2022-07-16 20:42:12 UTC 
FWIW this one needs -fno-strict-aliasing appended too.