Re: [Qemu-devel] [PATCH] configure: Use strings command from cross development tools

[Eric Blake <eblake@redhat.com>]

On 05/15/2018 10:04 AM, Peter Maydell wrote:

>> I'd much prefer this to be:
>>
>> if $strings -a $TMPO | grep...
>>
>> That's because if I have something like this in my environment:
>>
>> STRINGS='/path/to/strings -a'
>>
>> it will only work if you allow word splitting on my variable.
> 
> Conversely, if I have STRINGS='/path with spaces/to/strings'
> in my environment it will only work if you don't do word
> splitting on it :-)

Make convention has long been that /path with spaces/ is unacceptable 
for any of the typical tool replacements, and that you always perform 
unquoted (and thus word splitting) of a tool name.  My most common 
example is EDITOR='emacs -nw'.  You can always add a symlink to a tool 
from a path without spaces, if you want to provide a tool override to 
something that normally lives somewhere with spaces.

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org