[[Imported from SVN: r4864]]

[[Imported from SVN: r4814]]

[[Imported from SVN: r4813]]

[[Imported from SVN: r4773]]

[[Imported from SVN: r4763]]

[[Imported from SVN: r4762]]

[[Imported from SVN: r4661]]

configure will not try to start the mpi-daemon anymore. This must be done by hand before starting configure/test/etc, to avoid raise conditions

[[Imported from SVN: r4646]]

[[Imported from SVN: r4642]]

#define HAVE_MPI ENABLE_MPI

ENABLE_MPI is defined in the MPI_CPPFLAGS as ENABLE_MPI=1 if and only if
MPI was found by configure.


[[Imported from SVN: r4624]]

[[Imported from SVN: r4623]]

[[Imported from SVN: r4610]]

2) block lam from including C++ headers, which would require the C++ MPI libs


[[Imported from SVN: r4593]]

feature. For the time being I will leave the bug open.

[[Imported from SVN: r4589]]

[[Imported from SVN: r4490]]

[[Imported from SVN: r4405]]

configure has an additional option --disable-mpiruntest

[[Imported from SVN: r3720]]

  with the default compiler and the flags extracted from the different
  mpicc-scripts. If it fails a warning is emitted and MPI deactivated

  fixes bug #23

- added theoretical support for GCC with IBM MPI: the options (which
  are tailored toward xlc) are changed a bit. However the following
  problem remains: ./configure adapts the test programs to the
  C++ compiler it find. Thus, a test program passed to mpCC fails
  because the implicitly used xlC doesn't understand the line meant
  for g++... Maybe this (and a whole lot of other problems) just
  vanish if xlc 7.0 is used so I'll do nothing about it

[[Imported from SVN: r2412]]

[[Imported from SVN: r2399]]

MPICH-one does. This broke the identification...

On the other hand the new mpiCC offers parameters to extract the flags
without passing dummy-names which is used if LAM >= 7.1 is found

[[Imported from SVN: r990]]

MPI_CXXFLAGS. Not directly needed for Dune but for UG which uses the
same test

[[Imported from SVN: r887]]

get it running! Short version: either mpiCC is used globally for all
compilations OR we need two ./confugure-scripts and based on the
directory MPI is used or not OR we extract the flags from mpiCC. I've
decided for the latter, "works for me"(tm) with both MPICH and LAM
however I wouldn't be surprised if it's not working for all of us...

Longer explanation is in the comment-part of the test.

[[Imported from SVN: r711]]