[ET Trac] [Einstein Toolkit] #165: Intel compiler complains wrongly about incompatible argument lists in Fortran

[Einstein Toolkit]

#165: Intel compiler complains wrongly about incompatible argument lists in
Fortran
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  Reporter:  eschnett  |       Owner:     
      Type:  defect    |      Status:  new
  Priority:  minor     |   Milestone:     
 Component:  Cactus    |     Version:     
Resolution:            |    Keywords:     
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Comment (by eschnett):

 This is not an issue with modules; we figured out how to build with
 modules in Fortran. The Cactus make system pre-processes the Fortran
 files, looking for "include" and "use" statements, and then introduces the
 corresponding dependencies. Some people introduce these dependencies by
 hand, but this is in general not necessary.

 The problem here is that the Intel compiler creates a pseudo-module for
 each source file, and checks these even without any use statements. For
 example:

 file A.f90 contains subroutine A
 file B.f90 calls subroutine A

 In this case, the Intel compiler acts as if file A defined a module, and
 as if file B used that module.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/165#comment:2>
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