[ET Trac] [Einstein Toolkit] #136: Don't rebuild external libraries so often

[Einstein Toolkit]

#136: Don't rebuild external libraries so often
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  Reporter:  eschnett     |       Owner:     
      Type:  enhancement  |      Status:  new
  Priority:  minor        |   Milestone:     
 Component:  Cactus       |     Version:     
Resolution:               |    Keywords:     
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Comment (by rhaas):

 Replying to [comment:6 hinder]:
 > I think that is too complicated, and would get in the way of debugging.
 > Is it true that using libraries from one compiler will not work with
 another?
 > If I install HDF5 from source I'm pretty sure I have been able to use it
 with
 > the intel compiler in the past, even though it will have built with GCC.
 I found that Fortran modules (the .mod files in /include directories to be
 specific) are apparently compiler (and version) specific. If I compile
 HDF5 (+Fortran interface) using gcc 4.1.2 then I cannot use it with gcc
 4.5 (the error message is something like "error parsing module
 description"). I assume that different compilers could also use different
 methods to mangle eg. Fortran routine names. I never had problems with
 C/C++ routines.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/136#comment:7>
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