Landing: f7094fe5ff88
Project / Subsystem
gcc / libstdc++
Date
2026-09-28
Author
Gokbey Gazi Keskin
Commit
f7094fe5ff882f0c206d51ebe93f33f0193ce636
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- libstdc++
- patch_id
- —
- commit_hash
- f7094fe5ff882f0c206d51ebe93f33f0193ce636
- source_type
- github
- headline
- libstdc++: Fix directory removal for old systems lacking unlinkat
- tldr
- Ensures `std::filesystem::remove_all` correctly removes non-empty directories on systems without `unlinkat`.
- author
- Gokbey Gazi Keskin
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • filesystem
- • compatibility
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-28T00:00:00.000Z
On systems lacking unlinkat or dirent::d_type, libstdc++’s directory traversal could fail to correctly identify file types. When __erase was called for a non-empty directory, it would use ::remove which retries as rmdir. If rmdir failed due to the directory not being empty, the error was not handled correctly, leading remove_all to report a failure. This commit adjusts the error handling to accept ENOTEMPTY or EEXIST as valid failure reasons for rmdir in this specific scenario, allowing the operation to proceed.