[ET Trac] [Einstein Toolkit] #669: Rewrite users of deprecated HDF5 C++ API

[Einstein Toolkit]

#669: Rewrite users of deprecated HDF5 C++ API
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  Reporter:  eschnett  |       Owner:          
      Type:  task      |      Status:  reopened
  Priority:  minor     |   Milestone:          
 Component:  Other     |     Version:          
Resolution:            |    Keywords:          
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Comment (by eschnett):

 Here is an even less below-the-radar way:
 {{{
 # Assign default value if unset
 : ${HDF5_ENABLE_CXX:=yes}
 }}}
 Note the English text following the "#" character.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/669#comment:8>
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