Landing: 720433acf7ce

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Project / Subsystem

gcc / cobol

Date

2026-08-28

Author

James K. Lowden

Commit

720433acf7cefa99c0d7fb9769817d3bb40fe787

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: cobol
patch_id: —
commit_hash: 720433acf7cefa99c0d7fb9769817d3bb40fe787
source_type: github
headline: Cobol: Allow REDEFINES of tables with a new dialect option.
tldr: Cobol now allows REDEFINES on tables when a new dialect option is enabled.
author: James K. Lowden
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • cobol
• dialect
• compatibility
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/720433acf7cefa99c0d7fb9769817d3bb40fe787
date: 2026-08-28T00:00:00.000Z

The Cobol compiler now supports REDEFINES acting on a table, which is prohibited by the ISO standard but allowed by some Micro Focus COBOL dialects. A new warning option, Wredefines-table, is introduced to control this behavior, defaulting to off when the ‘-dialect mf’ option is used.