Landing: 56aa8efa7819
Project / Subsystem
gcc / libgfortran
Date
2026-09-04
Author
Iain Sandoe
Commit
56aa8efa78194dac05e76ed4e6505ca75a12742a
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- libgfortran
- patch_id
- —
- commit_hash
- 56aa8efa78194dac05e76ed4e6505ca75a12742a
- source_type
- github
- headline
- libgfortran, Darwin: Disable shared memory coarrays on older macOS versions.
- tldr
- libgfortran Darwin: Coarray shared memory features disabled on macOS < 10.7.
- author
- Iain Sandoe
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • libgfortran
- • darwin
- • coarrays
- • compatibility
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-04T00:00:00.000Z
The libgfortran library on Darwin has been updated to disable its shared memory coarray implementation on macOS versions prior to 10.7 (Darwin 11). This is because the implementation relies on PTHREAD_PROCESS_SHARED, which is not supported on these older systems. This change prevents the shared memory coarray features from causing testsuite noise on unsupported platforms.