Landing: 3b67b356f650

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Project / Subsystem

gcc / cobol

Date

2026-09-29

Author

James K. Lowden

Commit

3b67b356f650e817e69cdcd441f80cee697d8f7a

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: cobol
patch_id: —
commit_hash: 3b67b356f650e817e69cdcd441f80cee697d8f7a
source_type: github
headline: Add Werrno to warn about errno, and refine syslog priority.
tldr: New Werrno warning in GCC COBOL flags potential issues with C's errno, and syslog priorities are refined for error conditions.
author: James K. Lowden
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • cobol
• compiler
• warning
• runtime
• logging
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/3b67b356f650e817e69cdcd441f80cee697d8f7a
date: 2026-09-29T00:00:00.000Z

GCC’s COBOL compiler now supports the -Werror option, which warns if a COBOL program uses ‘error’ as a data-item name without properly referencing the C errno variable. Additionally, the severity of syslog messages for unhandled error conditions has been refined, using LOG_ERR for fatal errors and LOG_WARNING for non-fatal ones, while unimplemented or unrecognized errors still use LOG_INFO.