[Dune] [Dune-Commit] dune-common r5013 - trunk/m4

[Robert Kloefkorn]

Hi Christian,

> 
>> The answer to the first question is yes and the second no.
>> The AC_CHECK_LIB does compile a program and the check this program for 
>> the symbol. If you know how to make AC_CHECK_wathever to simply check 
>> that the lib acn be linked without searching for symbols, then please 
>> tell me.
> 
> For alugrid (and c++ libs in general) it will never be too easy to
> accomplish this. I think the easiest way is, if the lib contains a 'C'
> symbol (could oyu check for the alu-version... how is it stored? as a
> symbol? or as some define or enum?). All other symbols will be rather
> difficult to check, because they are mangled. In this case you can
> check for something like malloc. This will do a "can I find the lib
> with this name" test, but not check whether the lib is correct. But
> check ,,just'' the linking is already better than nothing.

That is why now the check does simply check malloc, because the check 
for main does somehwo not work on PowerPC. I don't know why. 
Unfortunately ther are no such symbols you mentioned above. I tested all 
  possible things. The ALUGrid Version is not stored in the lib.

Regards

R

-- 

   Robert Klöfkorn           <robertk at mathematik.uni-freiburg.de>

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