severity 522255 serious
thanks
Hi,
as some already have noticed, using mksh as /bin/sh errors out
there too – mdadm 2.6.7.2-3 is uninstallable in Lenny because
of this error, and debconf 1.5.26 from Sid still contains it.
Thus I’m tentatively raising the severity (YMMV though).
--- /usr/share/debconf/confmodule.a 2009-07-06 15:17:07.000000000 +0200
+++ /usr/share/debconf/confmodule.b 2009-07-06 15:17:01.000000000 +0200
@@ -62,7 +62,7 @@ db_title () { _db_cmd "TITLE $@"; }
db_input () { _db_cmd "INPUT $@"; }
db_beginblock () { _db_cmd "BEGINBLOCK $@"; }
db_endblock () { _db_cmd "ENDBLOCK $@"; }
-db_go () { _db_cmd "GO $@"; }
+db_go () { _db_cmd "GO ${...@}"; }
db_get () { _db_cmd "GET $@"; }
db_register () { _db_cmd "REGISTER $@"; }
db_unregister () { _db_cmd "UNREGISTER $@"; }
This works with mksh as /bin/sh at the very least¹. As it has
already been posted, erroring out has been traditional behaviour
for Bourne, Korn and some POSIX shells for ages.
$ mksh -uc 'echo $@'
mksh: @: parameter not set
① It should probably be mechanically applied to all the �...@”
occurences²³ in there.
② The correct change is 「"$@"」 → 「${1+"$@"}」 as explained
by the GNU autoconf texinfo documentaion, especially for zsh,
where �...@” has a totally different, nōn-POSIX meaning
③ What are these doing anywat, "GO $@", don’t they really mean
to use "GO $*" instead?
I wonder if the easier thing would be to change mdadm (and others)
to not use set -u _at least_ for Lenny until a consensus has been
reached. (I hope that we can at least agree to disagree, and not
depend on having to fix all shells except dash – and, maybe, zsh,
which was mentioned but is not really a /bin/sh suitable shell.)
I personally do not like to use set -u; I could live with people
using it for debugging their own shell code, or with CGIs they
maintain for themselves, but using it in maintainer scripts that
are widely deployed and for a wide range of shells (bash2/3/4,
dash, posh, mksh, AT&T ksh93, maybe others) it’s disagreeable.
Nevertheless, maybe the debconf scripts _could_ be adapted.
Sincerely,
//mirabilos – Debian Maintainer
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