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Bug 877451 - net-libs/libnice-0.1.21 fails to compile (lto): meson.build:70:0: ERROR: Program dot not found or not executable
Summary: net-libs/libnice-0.1.21 fails to compile (lto): meson.build:70:0: ERROR: Prog...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All Linux
: Normal normal (vote)
Assignee: No maintainer - Look at https://wiki.gentoo.org/wiki/Project:Proxy_Maintainers if you want to take care of it
URL:
Whiteboard:
Keywords: PullRequest
Depends on:
Blocks: missing-depend
  Show dependency tree
 
Reported: 2022-10-17 13:39 UTC by Agostino Sarubbo
Modified: 2024-04-05 02:46 UTC (History)
0 users

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


Attachments
build.log (build.log,49.46 KB, text/plain)
2022-10-17 13:39 UTC, Agostino Sarubbo
Details
1-meson-log.txt (1-meson-log.txt,40.64 KB, text/plain)
2022-10-17 13:39 UTC, Agostino Sarubbo
Details

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Description Agostino Sarubbo gentoo-dev 2022-10-17 13:39:34 UTC
https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: net-libs/libnice-0.1.19 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

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
Comment 1 Agostino Sarubbo gentoo-dev 2022-10-17 13:39:37 UTC
Created attachment 824601 [details]
build.log

build log and emerge --info
Comment 2 Agostino Sarubbo gentoo-dev 2022-10-17 13:39:38 UTC
Created attachment 824603 [details]
1-meson-log.txt

1-meson-log.txt
Comment 3 Agostino Sarubbo gentoo-dev 2022-10-17 13:39:40 UTC
Error(s) that match a know pattern in addition to what has been reported in the summary:


../libnice-0.1.19/docs/reference/libnice/meson.build:70:0: ERROR: Program 'dot' not found or not executable
Dependency gtk-doc found: NO found 1.33.1 but need: '<1.30'
Run-time dependency gtk-doc found: NO (tried pkgconfig and cmake)
Comment 4 Agostino Sarubbo gentoo-dev 2023-04-13 16:33:48 UTC
ci has reproduced this issue with version 0.1.19-r1 - Updating summary.
Comment 5 Agostino Sarubbo gentoo-dev 2023-05-31 06:53:19 UTC
ci has reproduced this issue with version 0.1.21 - Updating summary.
Comment 6 Larry the Git Cow gentoo-dev 2023-08-07 05:06:01 UTC
The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ebcc47b19f21ecfc1e0f4e276b288000ffc540aa

commit ebcc47b19f21ecfc1e0f4e276b288000ffc540aa
Author:     Alfred Wingate <parona@protonmail.com>
AuthorDate: 2023-08-01 21:30:25 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2023-08-07 04:45:57 +0000

    net-libs/libnice: remove graphviz requirement
    
    * Patched out target wouldn't do anything either way as the generated
      file is shipped with the tarball.
    
    Closes: https://bugs.gentoo.org/877451
    Closes: https://bugs.gentoo.org/889820
    Signed-off-by: Alfred Wingate <parona@protonmail.com>
    Closes: https://github.com/gentoo/gentoo/pull/32134
    Signed-off-by: Sam James <sam@gentoo.org>

 ...libnice-0.1.19-remove-graphviz-dependency.patch | 30 ++++++++++++++++++++++
 net-libs/libnice/libnice-0.1.19-r1.ebuild          |  5 ++++
 net-libs/libnice/libnice-0.1.21.ebuild             |  5 ++++
 3 files changed, 40 insertions(+)