add AM_PROG_CC_C_O to silence warning from automake
disable overzealous warning
Merge branch 'mpi3rma' of git.mpich.org:armci-mpi into mpi3rma
fixed a bug in ARMCI_Rmw for LONG types that was breaking NWChem bad
test both int and long fadd since long had been broken without detection for some time
test should only state pass/fail once