switch on EXF_IREAD_USE_GLOBAL_POINTER when USE_EXF_INTERPOLATION is defined
switch on EXF_IREAD_USE_GLOBAL_POINTER when USE_EXF_INTERPOLATION is defined

altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h,altMITgcm/MITgcm66h