# NousResearch/hermes-agent · Build failures from missing toolchain dependencies

## Open now

- 1 issue, 2 PRs open on GitHub.
- #122402: \[Bug\]: Ubuntu historical takeover fails building python-olm when managed Python requires missing clang++
- PR #122429: fix(update): fail takeover early when carried matrix extra cannot compile
- PR #122434: fix(pm): name the missing build toolchain in a failed source build

These items address cases where builds fail due to missing compilers or toolchains, specifically improving early failure detection and clearer error messaging when required build tools like clang++ are absent.

## TL;DR

- 3 member(s): 1 open issue(s), 0 closed issue(s), 2 open PR(s), 0 merged PR(s), 0 PR(s) closed without merging.
- No fix has been merged to main; one or more PRs were attempted (see below).
- **Recommended:** review the prior/competing PR(s) below. A fix was attempted but not merged; your case may extend or revive that work.

## Maintainer resolution verdict

- Internal-tracker verdict over this cluster's issue members: `unresolved`. This is distinct from the fix status above. Weigh it yourself.

## How this cluster was grouped

- Link evidence (`STRUCTURAL_SPANNING`): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.
- Pairwise link density `0.67`: the share of member pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36. `1.00` means every pair is linked.

## Open related issues

- #122402: \[Bug\]: Ubuntu historical takeover fails building python-olm when managed Python requires missing clang++

## Prior & competing PRs

- **#122429: fix(update): fail takeover early when carried matrix extra cannot compile**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`; refs `7b761da2de`, `7b761da2de`
  - files: `hermes_cli/_update_takeover.py`, `tests/hermes_cli/test_update_takeover_preflight.py`
- **#122434: fix(pm): name the missing build toolchain in a failed source build**. open
  - maintainer direction: category `uncategorized`; implication `needs_llm`
  - files: `pm/environment.py`, `tests/pm/test_uv_toolchain_remedy.py`

## Fix status

- No merged fix on record.
- Subsystem: `environments`