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[PATCH] Fix a broken unwind frame on `builtin bind --help'

From: Koichi Murase
Subject: [PATCH] Fix a broken unwind frame on `builtin bind --help'
Date: Mon, 11 Feb 2019 05:28:57 +0900

Configuration Information [Automatically generated, do not change]:
Machine: i686
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS: -O2 -march=native -Wno-parentheses -Wno-format-security
uname output: Linux padparadscha 4.13.13-100.fc25.i686 #1 SMP Wed Nov
15 18:24:19 UTC 2017 i686 i686 i386 GNU/Linux
Machine Type: i686-pc-linux-gnu

Bash Version: 5.0
Patch Level: 0
Release Status: release

  When `builtin bind --help' is executed in Bash 4.4 and 5.0,
`begin_unwind_frame ("bind_builtin")' is called, but `run_unwind_frame
("bind_builtin")` is not called.

  With my bash configuration, the following command causes actual
problems. But I omit a detailed explanation because my configuration
is too complex to explain here, yet the problem is rather clear.

  $ builtin bind --help

  In `builtins/bind.def', the macro `CASE_HELPOPT' is expanded to
something like `builtin_help(); return (EX_USAGE);'. However, here
`return' should be replaced by `BIND_RETURN`. I attach a patch for the
devel branch.

Best regards,

Attachment: 0001-fix-missing-call-of-run_unwind_frame-on-bind-help.patch
Description: Binary data

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