[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH 1/2] docs: mention cd limitation
|
From: |
Eric Blake |
|
Subject: |
Re: [PATCH 1/2] docs: mention cd limitation |
|
Date: |
Mon, 02 Aug 2010 07:15:05 -0600 |
|
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.7) Gecko/20100720 Fedora/3.1.1-1.fc13 Lightning/1.0b2pre Mnenhy/0.8.3 Thunderbird/3.1.1 |
On 07/31/2010 10:47 AM, Ralf Wildenhues wrote:
> * Paolo Bonzini wrote on Sat, Jul 31, 2010 at 11:24:50AM CEST:
>> cd "${var:-.}"
>
> Is :- portable now?
We still recommend against it in the manual. But Solaris /bin/sh
supports it, and according to http://www.in-ulm.de/~mascheck/bourne/, it
was added in SysIII in 1981, while shell functions appeared in SVR2 in
1984, and shell functions with local $@ in SVR3 in 1986. Since we
depend on the latter for most m4sh targest, should we start testing for
it in m4sh, and claiming that it is portable within configure scripts?
--
Eric Blake address@hidden +1-801-349-2682
Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature
- Re: [PATCH 1/2] docs: mention cd limitation,
Eric Blake <=