from 'adjustment.128x64x1/build/Makefile', extract:
# executed by:
#    jmc@baudelaire:/scratch/jmc/test_baudelaire/MITgcm_mth/verification/adjustment.128x64x1/build
OPTFILE="/scratch/jmc/test_baudelaire/MITgcm_mth/tools/build_options/linux_amd64_gfortran"