usually specify MPI_Wtime as an unresolved symbol in the linker options to
ensure that linker correctly pulls in MPI symbols needed by Darshan.  This
doesn't appear to be sufficient when linking binaries compiled with the Cray
compiler, however.  Added MPI_Init to the symbols list to resolve.


git-svn-id: https://svn.mcs.anl.gov/repos/darshan/trunk@650 3b7491f3-a168-0410-bf4b-c445ed680a29