mpi headers for armadillo

[Marius Schamschula]

Hi all,

In the PR armadillo: fix error with hdf5 +openmpi [1], we want to fix an issue where hdf5 has been installed with some flavor of mpi. The suggested patch works only for openmpi, but not it’s many sub-ports. The same issue exists for mpich.

I’m looking for a general way to extract the path to mpi.h for the active variant of mpi, rather than hard coding each sub-port (as they constantly change, as new compilers become available).

TIA


[1] https://github.com/macports/macports-ports/pull/3102

Marius
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Marius Schamschula