[ET Trac] [Einstein Toolkit] #1655: Cannot compile on Mac OS

[Einstein Toolkit]

#1655: Cannot compile on Mac OS
----------------------+-----------------------------------------------------
 Reporter:  hinder    |       Owner:                     
     Type:  defect    |      Status:  new                
 Priority:  critical  |   Milestone:  ET_2014_11         
Component:  Cactus    |     Version:  development version
 Keywords:  MPI       |  
----------------------+-----------------------------------------------------
 I tried to compile the ET on Mac OS using a fresh checkout from yesterday,
 and got linker errors.

 {{{
 Undefined symbols for architecture x86_64:
  "_MPI_Abort", referenced from:
      _CactusDefaultAbort in libthorn_Cactus.a(CactusDefaultComm.c.o)
      MPI::Comm::Abort(int) in libthorn_PeriodicCarpet.a(periodic.cc.o)
      MPI::Comm::Abort(int) in libthorn_Carpet.a(helpers.cc.o)
      MPI::Comm::Abort(int) in
 libthorn_CarpetEvolutionMask.a(evolution_mask.cc.o)
      MPI::Comm::Abort(int) in libthorn_CarpetIOASCII.a(ioascii.cc.o)
      MPI::Comm::Abort(int) in libthorn_CarpetIOBasic.a(iobasic.cc.o)
      MPI::Comm::Abort(int) in libthorn_CarpetIOHDF5.a(Input.cc.o)
 }}}

 This used to work before the recent rewrite of the MPI configure script.
 I am using the simfactory optionlist osx-mountain-lion-macports-gcc.cfg
 and OpenMPI from MacPorts.  The auto-detection logic in the MPI thorn
 won't work, as MacPorts uses nonstandard names for the compilation
 wrappers (mpicc-openmpi-mp    mpicxx-openmpi-mp   mpiexec-openmpi-mp
 mpif77-openmpi-mp   mpif90-openmpi-mp).  However, the optionlist specifies
 the library locations explicitly, and for some reason this is not working:

 MPI_DIR = NO_BUILD
 MPI_INC_DIRS = /opt/local/include/openmpi-mp
 MPI_LIB_DIRS = /opt/local/lib/openmpi-mp

 While it would be good for the script to be updated to find the
 configuration scripts that OpenMPI in MacPorts provides, we should also
 fix whatever is stopping the explicit settings from working.  It should
 always be possible to configure using the explicit settings; this is more
 important than having the auto-detection working.

-- 
Ticket URL: <https://trac.einsteintoolkit.org/ticket/1655>
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