[Paraview] CMake Producing Bad CXX Flags

[Berk Geveci]

I am confused as to why there is a -I in the beginning of the
variable. The MPI_INCLUDE_PATH variable is simply a path not a flag
and therefore should not have a -I in it. It should look like:
MPI_INCLUDE_PATH:PATH=/usr/local/packages/
    mpich-1.2.7p1/ch_p4/include;/usr/local/packages/
     mpich-1.2.7p1/ch_p4/include/mpi2c++

It is not surprising that cmake is producing a bad flag with -I in there.

-berk


On 3/23/07, Kent Eschenberg <eschenbe at psc.edu> wrote:
> A compile of 2.6.0 with MPI is failing because it is using
> "mpi.h" from /usr/include instead of the place I tell it.
> Here is the relevant line from my CMakeCache.txt:
>
> MPI_INCLUDE_PATH:PATH=-I/usr/local/packages/
>     mpich-1.2.7p1/ch_p4/include;/usr/local/packages/
>     mpich-1.2.7p1/ch_p4/include/mpi2c++
>
> The above is actually one line. I had CMake generate verbose
>   make files and found where CMake is producing a bad string
> for cxx's flags:
>
> /usr/bin/g++
>     ...
>     -I/usr/local/packages/mesa/6.5.2/gnu/include
>     -I/usr/local/packages/paraview/2.6.0/src/
> =>    Servers/Filters/-I/usr/local/packages/
>        mpich-1.2.7p1/ch_p4/include
>     -I/usr/local/packages/mpich-1.2.7p1/ch_p4/
>        include/mpi2c++
>     ...
>     /usr/local/packages/paraview/2.6.0/src/Servers/
>        Filters/vtkPVMain.cxx
>
> The above is actually one line with some material removed at
> the "...". Each "-I" is preceeded by a blank except on the
> line where I added "=>". I suspect the C++ preprocessor
> ignored that "-I" and so looked elsewhere for mpi.h.
>
> I could find nothing like this in the paraview or cmake bug
> lists but did find a report of the same problem from
> 9/7/2006 (Brad King replied that he could not duplicate the
> problem):
>
> http://public.kitware.com/pipermail/cmake/2006-September/010999.html
>
> My system:
>     x86_64 processors
>     Red Hat Enterprise Linux WS release 4
>     CMake 2.4.3 and 2.4.6
>     g++ 3.4.6
>
> Suggestions? TIA!
>
> Kent
> Pittsburgh Supercomputing Center
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-- 
 Berk Geveci
 Kitware Inc.
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 Clifton Park, NY, 12065