Hi All.
I've installed on my MacOS X 10.6.7 (Xcode4) the new GHC 7.0.3 (64 bit)
All works fine, but every time I build my code I get the warning:

ld: warning: could not create compact unwind for _ffi_call_unix64: does not use RBP or RSP based frame

Is this warning something bad?

Thanks.

Luca.