The 'set +v' is ok.
The command block following it is not.
The problem is caused by the handling of read-only variables in
/etc/bash-completion:
{
# These declarations must go within braces in order to be able to silence
# readonly variable errors.
BASH_COMPLETION="${BASH_COMPLETION:-/etc/bash_completion}"
BASH_COMPLETION_DIR="${BASH_COMPLETION_DIR:=/etc/bash_completion.d}"
} 2>/dev/null || :
readonly BASH_COMPLETION BASH_COMPLETION_DIR
Bash will terminate immediately at assignment BASH_COMPLETION=... if the
corresponding variable is read-only. Putting declarations in braces does not
help.
I would suggest the following approach instead:
readonly 2>/dev/null \
BASH_COMPLETION="${BASH_COMPLETION:-/etc/bash_completion}" \
BASH_COMPLETION_DIR="${BASH_COMPLETION_DIR:=/etc/bash_completion.d}"
It works as expected on gutsy. Patch attached.
** Attachment added: "bash_completion.diff"
http://launchpadlibrarian.net/10770174/bash_completion.diff
--
bash_completion erroneously returns
https://bugs.launchpad.net/bugs/164440
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