[MacPorts] #69368: Armadillo implicitly requires +mpich due to hdf5

[MacPorts]

#69368: Armadillo implicitly requires +mpich due to hdf5
-------------------------+-----------------------
 Reporter:  ufdup89      |      Owner:  (none)
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:               |       Port:  armadillo
-------------------------+-----------------------
 When trying to install armadillo with `port install armadillo +clang16
 +gfortran` I get the following error:


 {{{
 Error: Need to select variant +mpich
 Error: Failed to archivefetch armadillo: hdf5 +mpich is installed, so
 +mpich needs to be selected for armadillo
 }}}

 The above error message makes sense since I have hdf5 installed with mpi
 support. However, I simply want to link armadillo with hdf5, not with it's
 mpi variant. Is this somehow possible, or are changes required at the hdf5
 port side?

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Ticket URL: <https://trac.macports.org/ticket/69368>
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