petscvariables: hardwired build dir instead of install dir

[Stephan Kramer]

Barry Smith wrote:
>
>    Matt,
>
>     The sed is so trivial it is silly to even think about replacing
> it with python!  I did not realize until after reading Lisandro's email
> that the sed -i option behaved differently on different systems.
>
>    Barry
If you want portable, just stick to the POSIX standard, see e.g.:

http://www.opengroup.org/onlinepubs/000095399/utilities/sed.html

Unfortunately this doesn't include any -i option, so you'll have to 
redirect to a temp and move.

Cheers
Stephan

>
>
> On Mar 24, 2008, at 10:07 PM, Matthew Knepley wrote:
>> On Mon, Mar 24, 2008 at 9:50 PM, Barry Smith <bsmith at mcs.anl.gov> wrote:
>>>
>>> On Mar 24, 2008, at 10:57 AM, Lisandro Dalcin wrote:
>>>> Barry, things are still broken. I think that at some point we have to
>>>> review the 'install:' target  more carefully.
>>>>
>>>> First, the 'sed' command i being called in a wrong way.
>>>
>>>    This is not true; the sed is being called correctly. The problem
>>> is that -i
>>> is not a standard sed option and different systems gnu and freebsd 
>>> treat
>>> it differently. freebsd requires a space between the -i and the suffix;
>>> gnu has no space; gnu also allows the use of -i to indicate no backup
>>> while freebsd expects -i ""
>>>
>>>   Your patch works on POS gnu systems, but is broken on far superior
>>> Apple MacOS X systems! :-)
>>>
>>>    Matt you need to add a config/configure.py test to detect the
>>> type of sed -i it is.
>>
>> I totally disagree. We should ditch all this crap, and just write 
>> nice, PORTABLE
>> Python code. I will do it. I just need someone to explain what this
>> sed is doing.
>>
>>   Matt
>>
>> -- 
>> What most experimenters take for granted before they begin their
>> experiments is infinitely more interesting than any results to which
>> their experiments lead.
>> -- Norbert Wiener
>>
>
>