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* Python detection fallout with non GNU sed
@ 2011-02-01 20:41 Andreas Tobler
  2011-02-02  4:45 ` Joel Brobecker
  0 siblings, 1 reply; 3+ messages in thread
From: Andreas Tobler @ 2011-02-01 20:41 UTC (permalink / raw)
  To: gdb

Hi all,

a recent commit to the configure.ac/configure in src/gdb broke the 
machinery on machines which do not have GNU sed.

The issue is the following:

sed -e 's,^.* -l\(python[0-9]*[.]\?[0-9]*\).*$,\1,'`

On certain sed implementations the quantifier '\?' can not be used on 
backreferences.

This breaks the detection of python.

Here it fails on darwin and FreeBSD.

I tried the follwoing on those systems and on linux-ppc:

sed -e 's,^.* -l\(python[0-9]*[.][0-9]*\).*$,\1,'`

(the same expression w/o the \? quantifier.)

So far I do not see a drawback. But maybe I did not cover all aspects.
I do not have a *win* system to test on.

What do you think?

Gruss,
Andreas


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Python detection fallout with non GNU sed
  2011-02-01 20:41 Python detection fallout with non GNU sed Andreas Tobler
@ 2011-02-02  4:45 ` Joel Brobecker
  2011-02-02 16:10   ` Andreas Tobler
  0 siblings, 1 reply; 3+ messages in thread
From: Joel Brobecker @ 2011-02-02  4:45 UTC (permalink / raw)
  To: Andreas Tobler; +Cc: gdb

> a recent commit to the configure.ac/configure in src/gdb broke the
> machinery on machines which do not have GNU sed.

That's me, sorry.

> I tried the follwoing on those systems and on linux-ppc:
> 
> sed -e 's,^.* -l\(python[0-9]*[.][0-9]*\).*$,\1,'`
> 
> (the same expression w/o the \? quantifier.)

This is not going to work on Windows, because windows the python
library does not have the dot in the version number (Eg: Python27).

I've checked in a fix.  Can you retry?

-- 
Joel


^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: Python detection fallout with non GNU sed
  2011-02-02  4:45 ` Joel Brobecker
@ 2011-02-02 16:10   ` Andreas Tobler
  0 siblings, 0 replies; 3+ messages in thread
From: Andreas Tobler @ 2011-02-02 16:10 UTC (permalink / raw)
  To: Joel Brobecker; +Cc: gdb

On 02.02.11 05:45, Joel Brobecker wrote:
>> a recent commit to the configure.ac/configure in src/gdb broke the
>> machinery on machines which do not have GNU sed.
>
> That's me, sorry.

Np.

>> I tried the follwoing on those systems and on linux-ppc:
>>
>> sed -e 's,^.* -l\(python[0-9]*[.][0-9]*\).*$,\1,'`
>>
>> (the same expression w/o the \? quantifier.)
>
> This is not going to work on Windows, because windows the python
> library does not have the dot in the version number (Eg: Python27).
>
> I've checked in a fix.  Can you retry?

This is fine with me. Tested on darwin and FreeBSD. Works perfect here.

Thank you very much for the quick fix.

Gruss,
Andreas


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2011-02-02 16:10 UTC | newest]

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2011-02-01 20:41 Python detection fallout with non GNU sed Andreas Tobler
2011-02-02  4:45 ` Joel Brobecker
2011-02-02 16:10   ` Andreas Tobler

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