Bug fix for following scenario:  % genmake2  % make links  % genmake2  % make CLEAN  % make links Results in symbolic links pointing to themselves.
Bug fix for following scenario:
 % genmake2
 % make links
 % genmake2
 % make CLEAN
 % make links
Results in symbolic links pointing to themselves.

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