---
- branch: MAIN
  date: Wed Jun 24 16:49:30 UTC 2020
  files:
  - new: '1.49'
    old: '1.48'
    path: src/usr.bin/m4/main.c
    pathrev: src/usr.bin/m4/main.c@1.49
    type: modified
  id: 20200624T164930Z.a1e5f69f2c185d614d86f4785904d948be948007
  log: |
    Try not to lose error output with --error-output.

    Try to avoid the trap we set up ourselves while avoiding freopen(3).
    When exit flushes and closes open streams it may close sfp first and
    when it comes about to flush and close stderr, the descriptor is
    already gone and we lose any buffered error output.  This actually
    happens on some hosts, breaking --trace output used by autoconf.
  module: src
  subject: 'CVS commit: src/usr.bin/m4'
  unixtime: '1593017370'
  user: uwe