musl libc support

Metadata

Project: snapcraft (launchpad)
Number: #1862666
Type: issue
State: open
Author: ~cjp256
Labels: —
Created: 2020-02-10 04:40 PM UTC
Updated: 2020-02-10 04:40 PM UTC
Closed: —

Current evaluation

Maintainer-filed design note that snapcraft's gnu arch triplets and soname crawling don't handle musl libc (x86_64-linux-musl), causing unsatisfiable libc.musl-x86_64.so.1 errors; a layout workaround exists. No labels, comments, or activity in ~6.5 years.

Suggested action: needs triage

Reason: The issue has no labels, no assignee, and zero comments in 2394 days, showing no triage or prioritisation despite being filed by a maintainer. It is an open-ended design question ('we should sort out the appropriate way to handle this case. There may be other gotchas') rather than a concrete bug, and I could not verify via repo inspection whether musl handling was later added, so a human should decide if it is still in scope. The body's layout workaround means it is not blocking for users, but there is no evidence it is obsolete, so closing is not justified.

Impact: 35 Quick Win: 8.75 Staleness: 92 Complexity: 75 Confidence: 55 Support Request: 10

Issue body

Snapcraft uses the "gnu" arch triplet (e.g. x86_64-linux-gnu), whereas musl reuires the "musl" triplet (e.g. x86_64-linux-musl). Users of musl libc will require a layout to wire up musl but it can be made to work with recent snapcraft, though will get an error: This part is missing libraries that cannot be satisfied with any available stage-packages known to snapcraft: - libc.musl-x86_64.so.1 Crawling for it probably doesn't work due to the soname format? Regardless, we should sort out the appropriate way to handle this case. There may be other gotchas. --- layout: /lib/ld-musl-x86_64.so.1: bind-file: $SNAP/lib/x86_64-linux-musl/libc.so

Evaluation history

Date	Model	Scores	Action	Summary
2026-09-01 09:15 AM UTC	qwen/qwen3.8-27b	Impact: 35 Quick Win: 8.75 Staleness: 92 Complexity: 75 Confidence: 55 Support Request: 10	needs triage	Maintainer-filed design note that snapcraft's gnu arch triplets and soname crawling don't handle musl libc (x86_64-linux-musl), causing unsatisfiable libc.musl-x86_64.so.1 errors; a layout workaround exists. No labels, comments, or activity in ~6.5 years.
2026-07-23 02:09 PM UTC	qwen/qwen3.6-35b-a3b	Staleness: 95 Complexity: 75 Confidence: 85 Support Request: 10	close stale	Feature request to handle musl libc triplets and library resolution in Snapcraft. Untriaged, inactive for over six years with no maintainer feedback.
2026-07-22 01:26 PM UTC	qwen/qwen3.6-35b-a3b	Staleness: 95 Complexity: 60 Confidence: 85 Support Request: 10	close stale	Request to add official support for musl libc in Snapcraft, which currently only supports gnu libc due to architecture triplet and library resolution differences. Unaddressed for over six years.
2026-07-10 04:49 AM UTC	qwen3.6-35b-a3b-mtp-q6	Staleness: 95 Complexity: 70 Confidence: 75 Support Request: 20	close stale	Unaddressed report on missing musl libc triplet support and library crawling issues in Snapcraft. Zero maintainer interaction after over six years.
2026-06-21 07:16 PM UTC	qwen3.6-35b-a3b-mtp-q6	Staleness: 98 Complexity: 65 Confidence: 85 Support Request: 15	close stale	Feature request regarding Snapcraft's lack of native musl libc support due to arch triplet differences. Issue is six years old, unlabelled, and has received no maintainer response or activity.

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