[PPL-devel] Undefined PPL references attempting to build cloog-ppl

[Enea Zaffanella]

Peter Kruse wrote:
> Hello,
> 
> On Sun, Sep 19, 2010 at 12:52 PM, Roberto Bagnara <bagnara at cs.unipr.it> wrote:
>> On 09/19/10 12:09, Peter Kruse wrote:
>>> On Sun, Sep 19, 2010 at 10:41 AM, Roberto Bagnara<bagnara at cs.unipr.it>
>>>  wrote:
>>>> I agree.  Can you please try to come up with revised Posix sed patterns
>>>> that do not fail with Solaris' sed?  We would be glad to apply the patch.
>>> can you show which pattern is the one in question?
>> Unfortunately not.  But you can inspect our patterns and compare them
>> with those that are said to be avoided in the documentation you quoted.
> 
> ok, I found it.  In line 14514 of configure you have this:
> 
>   required_instantiations=`echo "${enableval}" | sed -e 's/[	 ][	 ]*/
> /g' -e 's/[ ]*\([@<>,]\)[ ]*/\1/g' -e 's/>>/> >/g' -e 's/^[ ]//g' -e
> 's/[ ]$//g'`
> 
> where enableval looks like:
> 
> '        Polyhedron @ Grid @ Rational_Box @ BD_Shape<int8_t> @
> BD_Shape<mpz_class> @ BD_Shape<mpq_class> @ Octagonal_Shape<mpz_class>
> @ Octagonal_Shape<mpq_class> @ Constraints_Product<C_Polyhedron, Grid>
> @ Pointset_Powerset<C_Polyhedron> @ Pointset_Powerset<NNC_Polyhedron>'
> 
> It is the pattern 's/[ ]*\([@<>,]\)[ ]*/\1/g'.  Comparing solaris and gnu:
> 
> Solaris:
> 
> echo '> @ B' | sed -e 's/[ ]*\([@<>,]\)[ ]*/\1/g'
>> @ B
> 
> GNU:
> 
> echo '> @ B' | gsed -e 's/[ ]*\([@<>,]\)[ ]*/\1/g'
>> @B
> 
> notice the extra space. Now the question, it seems the whole point
> of this step is to "Avoid extra blank".  Are there blanks you want to keep,
> or can you not just remove every blank?

We do not want to remove every blank,
because the enable_val string could contain something like

   Pointset_Powerset<BD_Shape<mpq_class> >

and we want to keep the blank separating the two closing angle brackets.

Cheers,
Enea.


> 
> Cheers,
> 
>   Peter
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