[[Imported from SVN: r6238]]

[[Imported from SVN: r6237]]

[[Imported from SVN: r6236]]

[[Imported from SVN: r6235]]

[[Imported from SVN: r6150]]

* make the documentation appear more promimently
* link from different parts
* add some more details to the example

[[Imported from SVN: r6121]]

[[Imported from SVN: r6119]]

make ???check targets

[[Imported from SVN: r6118]]

[[Imported from SVN: r6053]]

[[Imported from SVN: r6052]]

[[Imported from SVN: r6051]]

Please somebody verify that this is proper way.

[[Imported from SVN: r6014]]

[[Imported from SVN: r6013]]

[[Imported from SVN: r5977]]

[[Imported from SVN: r5944]]

[[Imported from SVN: r5923]]

[[Imported from SVN: r5922]]

[[Imported from SVN: r5873]]

ALL_PKG_*FLAGS and ALL_PKG_LIBS.

[[Imported from SVN: r5826]]

[[Imported from SVN: r5815]]

[[Imported from SVN: r5812]]

* Infrastructure to warn about the use of deprecated preprocessor make
  variables.
* Use that infrastructure to war about MPI_CPPFLAGS.

[[Imported from SVN: r5807]]

  - Introduce autoconf substitutions DUNEMPICPPFLAGS, DUNEMPILDFLAGS and
    DUNEMPILIBS.
  - Deprecate MPI_LDFLAGS and MPI_CPPFLAGS: the automake manual recommends
    against "_" in names of such variables, MPI_LDFLAGS actually contains
    mainly libraries and simply changing MPI_LDFLAGS to MPI_LIBS will probably
    break a lot of stuff.  By deprecating MPI_CPPFLAGS it is possible to make
    the preprocessor generate a deprecation warning with instructions to
    change both MPI_CPPFLAGS and MPI_LDFLAGS (though this has yet to be
    implemented).

[[Imported from SVN: r5806]]

[[Imported from SVN: r5804]]

[[Imported from SVN: r5796]]

[[Imported from SVN: r5794]]

[[Imported from SVN: r5782]]

[[Imported from SVN: r5781]]

[[Imported from SVN: r5775]]

[[Imported from SVN: r5769]]

as a start to sort the mess, define 5 classes for variables used in the
autoconf/automake system

[[Imported from SVN: r5764]]

[[Imported from SVN: r5762]]

[[Imported from SVN: r5759]]

[[Imported from SVN: r5758]]

[[Imported from SVN: r5756]]

[[Imported from SVN: r5681]]

[[Imported from SVN: r5680]]

[[Imported from SVN: r5636]]

* bin/dunedoxynize reads a file doc/doxygen/Doxylocal
* it merges the file dune-common/doc/doxygen/Doxystyle
* it write Doxyfile.in

[[Imported from SVN: r5634]]

[[Imported from SVN: r5633]]