Configuration Information [Automatically generated, do not change]:
Machine: aarch64
OS: darwin24.4.0
Compiler: clang
Compilation CFLAGS: -DSSH_SOURCE_BASHRC
-DDEFAULT_LOADABLE_BUILTINS_PATH='/opt/homebrew/lib/bash:/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:.'
uname output: Darwin MacBookPro 24.5.0 Darwin Kernel Version 24.5.0: Tue
Apr 22 19:54:49 PDT 2025; root:xnu-11417.121.6~2/RELEASE_ARM64_T6000 arm64
Machine Type: aarch64-apple-darwin24.4.0
Bash Version: 5.3
Patch Level: 0
Release Status: release
Description:
MacOS Homebrew bash '5.3.0(1)-release' (apparently?) breaks 'wait'
bash-settings are as follows (in my experiments,
the sole critical setting is "posix on")
"${BASH_VERSION}" == '5.3.0(1)-release'
allexport off
braceexpand on
emacs on
errexit off
errtrace off
functrace off
hashall on
histexpand on
history on
ignoreeof off
interactive-comments on
keyword off
monitor on
noclobber off
noexec off
noglob off
nolog off
notify off
nounset off
onecmd off
physical off
pipefail off
posix on
privileged off
verbose off
vi off
xtrace off
Repeat-By:
# SUMMARY: the following three commands
# minimally elicit a failure-to-wait bug
set -o posix ;
mapfile -t JOBS < <(jobs -rp);
sleep 10 & wait -f -n $! ;
# FAILURE: 'wait' DOES NOT WAIT
Fix:
(1) failure-to-wait occurs not only for 'sleep',
but for ANY asynchronous process (yikes!)
(2) 'set +o posix' is a workaround (but alas,
my existing scripts all assume posix-mode).
(3) "$(ls -lad "$(which bash)")" returns (for me)
/opt/homebrew/bin/bash ->
../Cellar/bash/5.3_1/bin/bash
hence Homebrew's (recent) bash-update to '5.3_1'
has NOT FIXED this (apparent) 'wait'-bug.
(4) this (apparent) 'wait'-bug was NOT present
in Homebrew's bash-releases prior to 5.3.0
