28 Jul
                
                    2004
                
            
            
                28 Jul
                
                '04
                
            
            
            
        
    
                10:08 a.m.
            
        I guess it's a wrong gc - the one you need is in lowercase :)
This one worked for me:
http://www.hpl.hp.com/personal/Hans_Boehm/gc/gc_source/gc6.3.tar.gz
Run its ./configure --help and it will list the --enable-cplusplus option that you need.