[Dune] [#1000] Migrate build system from autotools to CMake

[Dune]

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FS#1000 - Migrate build system from autotools to CMake
User who did this - Christian Engwer (christi)

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As I stressed many times already. I'm open for discussion, but this need to be done on a sound basis, which means we need a representative setup.

I think (and discussed with other developers in previous discussions) the test set should be something like:
- convert dune-common
  * write equivalents of the current dune-common m4-tests
  * write an updated dunecontrol
  * write equivalents for the DUNE_CHECK_MODULE routines
  * add some equivalent for the generated dependencies.m4
- convert dune-istl (grid would be a bit too hard)
  * the important part is that we have a second module which adds new tests
  * write equivalents of the local m4-tests

Important facts we should consider in our evaluation are:
- how much time did it take to write the new tests?
- how much time do we estimate for the transformation of an existing app-module?
- how much speedup do we gain?
- how difficult is it to add new kinds of make rules?
- can we reproduce the exact behavior (config.h etc.)?
- can we now use dune easily with other build-systems (e.g. VisualStudio)?
- is it possible to write the system in way that the depending modules have to use the same configuration as the underlying module?
  ... e.g. dune-common is configures with --with-blas=... and now all other modules whould implicitly use the same configuration for blas

I will not tell you what to do or not to do, but I have to warn you that the buildsystem is grown over a long time, it provides a large set of features and I expect it to be a lot of work to port the features to cmake.
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http://www.dune-project.org/flyspray/index.php?do=details&task_id=1000#comment2974

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