GNU Libtool suffers[1] from the fact that repeated concatenation
var=
for elem in $long_list
do
var="$var $elem"
done
scales quadratically in the number of list elements. Now while most if
not all common shells exhibit this behavior, and it happens even when
you append a constant string, I do think it is a bug, and should be
fixed. Last tested with
| GNU bash, version 3.00.14(1)-release (x86_64-redhat-linux-gnu)
Please keep me in Cc:, I'm not subscribed.
Regards,
Ralf
[1] http://lists.gnu.org/archive/html/libtool-patches/2005-05/msg00050.html
and proposed workaround with temp files (3rd attachment):
http://lists.gnu.org/archive/html/libtool-patches/2005-05/msg00076.html
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