[ET Trac] [Einstein Toolkit] #700: Add configure tests for FPPFLAGS

[Einstein Toolkit]

#700: Add configure tests for FPPFLAGS
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 Reporter:  eschnett  |       Owner:     
     Type:  defect    |      Status:  new
 Priority:  major     |   Milestone:     
Component:  Cactus    |     Version:     
 Keywords:            |  
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 Add configure tests for fixed-form and free-form Fortran, testing FPP and
 FPPFLAGS.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/700>
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