[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#10898: test-suite output of automake-1.11.3 - it requested I send it
From: |
Eric Blake |
Subject: |
bug#10898: test-suite output of automake-1.11.3 - it requested I send it to you! |
Date: |
Tue, 28 Feb 2012 09:51:21 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120216 Thunderbird/10.0.1 |
[adding autoconf]
On 02/28/2012 09:42 AM, Stefano Lattarini wrote:
>> Ah, likely the famous ksh bug with "$@" and empty arguments:
>>
>>
>> <http://lists.gnu.org/archive/html/automake-patches/2009-12/msg00037.html>
> See automake bug#10898.
>
> At least the AT&T and OpenSolaris versions of the Korn shell have a
> strange bug regarding the expression ${1+"$@"}: when exactly *one*
> empty argument is passed to a shell function, inside that function
> the expression ${1+"$@"} will expand to *nothing*, rather than to
> to the single empty string, as one would expect. This was causing
> a spurious failure in our testsuite when a shell suffering of this
> bug was used to run the test cases.
Yuck - this sounds like it should be documented in the autoconf manual.
Is it only shell functions that are affected, but global use of
${1+"$@"} is still safe?
--
Eric Blake address@hidden +1-919-301-3266
Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature