[ET Trac] [Einstein Toolkit] #1598: ExternalLibraries/MPI does not auto-detect openmpi on Debian/testing

[Einstein Toolkit]

#1598: ExternalLibraries/MPI does not auto-detect openmpi on Debian/testing
-----------------------------------+----------------------------------------
 Reporter:  rhaas                  |       Owner:                     
     Type:  defect                 |      Status:  new                
 Priority:  minor                  |   Milestone:                     
Component:  EinsteinToolkit thorn  |     Version:  development version
 Keywords:  MPI                    |  
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 configure.sh expects to find libmpi.a in $MPI_DIR/lib however Debian no
 longer delivers a static libmpi.a but only libmpi.so so the tests fails.
 The fix is likely similar to what HDF5 already does (ie accept any of .a
 .so .dylib as extensions for libraries). The fix is a bit complex though,
 so (given that Debian/stable is still fine) this is a reminder for after
 the release. Explictly specifying MPI_DIR, MPI_INC_DIRS, MPI_LIB_DIRS and
 MPI_LIBS allows this to be worked around in the current release.

 For reference, the fragment from HDF5 looks like this:
 {{{
     # We look in these directories
     DIRS="/usr /usr/local /usr/local/hdf5 /usr/local/packages/hdf5
 /usr/local/apps/hdf5 /opt/local ${HOME} ${HOME}/hdf5 c:/packages/hdf5"
     # look into each directory
     for dir in $DIRS; do
         # libraries might have different file extensions
         for libext in a so dylib; do
             # libraries can be in /lib or /lib64
             for libdir in lib64 lib; do
                 # These files must exist
                 FILES="include/hdf5.h $(for lib in ${HDF5_CXX_LIBS}
 ${HDF5_FORTRAN_LIBS} ${HDF5_C_LIBS}; do echo
 ${libdir}/lib${lib}.${libext}; done)"
                 # assume this is the one and check all needed files
                 HDF5_DIR="$dir"
                 for file in $FILES; do
                     # discard this directory if one file was not found
                     if [ ! -r "$dir/$file" ]; then
                         unset HDF5_DIR
                         break
                     fi
                 done
                 # don't look further if all files have been found
                 if [ -n "$HDF5_DIR" ]; then
                     break
                 fi
            done
            # don't look further if all files have been found
            if [ -n "$HDF5_DIR" ]; then
                break
            fi
         done
         # don't look further if all files have been found
         if [ -n "$HDF5_DIR" ]; then
             break
         fi
     done
 }}}

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1598>
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