[CMake] An issue with snow leopard?

[Wei Lu]

Hi cmake users,

When I upgrade my mac to snow leopard, some of my projects don't  
compile any more with cmake.
The error message is:

cc1plus: error: unrecognized command line option "-Wno-long-double"

My guess is that the option "-Wno-long-double" generated by cmake is  
deprecated in snow leopard, am I right? How can I fix it?

Thanks,
Wei Lu