 o fix floating point exception error by telling the compiler to only emit    warnings (*not* quit) when underflow and other FPEs occur    - fixes the long-standing problem with aim.5l_cs on halem
 o fix floating point exception error by telling the compiler to only emit
   warnings (*not* quit) when underflow and other FPEs occur
   - fixes the long-standing problem with aim.5l_cs on halem

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