Bug 865287

Summary:	app-crypt/qca-2.3.4 calls commands that do not exist: latex dot
Product:	Gentoo Linux	Reporter:	Agostino Sarubbo <ago>
Component:	Current packages	Assignee:	Qt Bug Alias <qt>
Status:	RESOLVED FIXED
Severity:	normal	CC:	kde
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	build.log

Description Agostino Sarubbo gentoo-dev

2022-08-15 18:27:56 UTC

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

Issue: app-crypt/qca-2.3.4 calls commands that do not exist.
Discovered on: amd64 (internal ref: lto_tinderbox)

NOTE:
This machine uses lto with CFLAGS=-flto -Werror=odr -Werror=lto-type-mismatch -Werror=strict-aliasing

Here is a bit of explanation:

-Werror=lto-type-mismatch:
User to find possible runtime issues in packages. It likely means the package is unsafe to build & use with LTO.
For projects using the same identifier but with different types across different files, they must be fixed to be consistent across the codebase.

-Werror=odr:
Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO. C++ code must comply with the One Definition Rule (ODR) - see https://en.cppreference.com/w/cpp/language/definition#One_Definition_Rule.

-Werror=strict-aliasing:
Used to find possible runtime issues in packages. These bugs are a problem anyway but may be even worse when combined with LTO.

Workarounds:
- If upstream is friendly and still active, file a bug upstream. For emulators, codecs, games, or multimedia packages, it may be worth just applying a workaround instead, as upstreams sometimes aren't receptive to these bugs (VALID FOR ALL).
- Use the new 'filter-lto' from flag-o-matic.eclass as it's likely to be unsafe with LTO (VALID FOR lto-type-mismatch - odr).
- Fix it yourself if interested, of course (VALID FOR ALL).
- Append-flags -fno-strict-aliasing (VALID FOR strict-aliasing).
- Use memcpy() but a union is sometimes suitable too (VALID FOR strict-aliasing).
- -fstrict-aliasing is implied by -O2, so this must be addressed in some form (VALID FOR strict-aliasing).

See also: https://marc.info/?l=gentoo-dev&m=165639574126280&w=2
Please look for 'command not found' and/or 'no such file or directory'.

Comment 1 Agostino Sarubbo gentoo-dev

2022-08-15 18:27:58 UTC

Created attachment 799785 [details]
build.log

build log and emerge --info

Comment 2 Larry the Git Cow gentoo-dev

2022-08-15 21:07:39 UTC

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

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=54b8706de23ecc5f00cf84eee4fca8aa8f2a6ff6

commit 54b8706de23ecc5f00cf84eee4fca8aa8f2a6ff6
Author:     Andreas Sturmlechner <asturm@gentoo.org>
AuthorDate: 2022-08-15 21:06:55 +0000
Commit:     Andreas Sturmlechner <asturm@gentoo.org>
CommitDate: 2022-08-15 21:06:55 +0000

    app-crypt/qca: Fix IUSE doc missing BDEPENDs
    
    Closes: https://bugs.gentoo.org/865287
    Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

 app-crypt/qca/qca-2.3.4.ebuild | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)