Turned off gcc-4.2 forcing on osx for now, until I can merge in the better switch.
Turned off gcc-4.2 forcing on osx for now, until I can merge in the better switch.

tony2001/libmemcached,mckelvin/libmemcached,tony2001/libmemcached,tony2001/libmemcached,mckelvin/libmemcached,mckelvin/libmemcached