from 'adjustment.128x64x1/build/Makefile', extract:
# executed by:
#    dferreir@r9i3n3:/u/dferreir/MITgcm/verification/adjustment.128x64x1/build
 OPTFILE="/u/dferreir/MITgcm/tools/build_options/linux_amd64_ifort+mpi_ice_nas"