darwin build with latest gcc from apple

we are trying to adapt the configure in order to work with latest 
gcc3.3 (from apple) and g77 3.4 (from 
http://gravity.psu.edu/~khanna/hpc.html )
At the moment there is no need to define the __DEBUGGING__ but there is 
still a problem with the -lcc_dynamic

does any of you know how to check for this library and explain why we 
see -lcc_dynamic often passed as an ld flag.
Where to find doc on this?

stefano