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Re: [PATCH] Fail when PPL 0.11 is not present and CLooG has been requested.
On Tue, Jan 25, 2011 at 7:51 AM, Tobias Grosser
<grosser@fim.uni-passau.de> wrote:
> On 01/25/2011 10:45 AM, H.J. Lu wrote:
>>
>> On Tue, Jan 25, 2011 at 7:38 AM, Tobias Grosser
>> <grosser@fim.uni-passau.de> ?wrote:
>>>
>>> On 01/25/2011 10:33 AM, H.J. Lu wrote:
>>>>
>>>> On Tue, Jan 25, 2011 at 6:53 AM, Richard Guenther
>>>> <richard.guenther@gmail.com> ? ?wrote:
>>>>>
>>>>> On Tue, Jan 25, 2011 at 3:49 PM, H.J. Lu<hjl.tools@gmail.com> ? ?wrote:
>>>
>>>>>> [...]
>>>>>
>>>>> One less shared libraray because of
>>>>>
>>>>> "Even if CLooG 0.16
>>>>> does not use PPL, PPL is still required for Graphite."
>>>>>
>>>>
>>>> It makes no senses. ?I installed ppl 0,11 and cloog 0.16.1. I got
>>>>
>>>> checking for version 0.11 (or later revision) of PPL... yes
>>>> checking for installed CLooG PPL Legacy... no
>>>> configure: error: Unable to find a usable CLooG. ?See config.log for
>>>> details.
>>>>
>>>> configure:5881: gcc -m32 -o conftest -g -I/opt/gnu/include
>>>> -I/opt/gnu/include ? -DCLOOG_INT_GMP -DCLOOG_ORG ?-L/opt/gnu/lib
>>>> -L/opt/gnu/lib -lppl_c -lppl -lgmpxx conftest.c -lcloog>&5
>>>> conftest.c: In function 'main':
>>>> conftest.c:15:5: error: 'choke' undeclared (first use in this function)
>>>
>>>> [...]
>>>>
>>>> Why does it check cloog-ppl at all?
>>>
>>> Cloog 0.15 (known as cloog-ppl) is still the default. If you installed
>>> cloog-0.16.1 (known as cloog-isl) you need to explicitly state that you
>>> want
>>> a Cloog other than the default. This is done by
>>> '--enable-cloog-backend=isl' in the configure.
>>
>> There is no working cloog ppl for cloog 0.16.1. Why do you make it
>> the default for 0.16.1?
>
> Sorry for the confusion. There are those cloog versions available:
>
> cloog 0.15 (Also known as cloog-ppl)
> cloog 0.16.1 (Also known as cloog-isl)
> cloog-parma 0.16.1 (Also known as cloog-parma)
>
> We currently still default to cloog 0.15 (cloog-ppl). The next step for gcc
> 4.7 will be to update to cloog 0.16 (cloog-isl). With this update we will
> switch from using a ppl based cloog backend to an isl based cloog backend.
> However for gcc 4.6 we still default to use cloog 0.15 with the ppl based
> backend.
>
In configrue, you should switch to cloog-isl if the cloog version >= 0.16.1
since there is no cloog-ppl for the cloog version >= 0.16.1.
--
H.J.