[Vala] valac 64-bit compatibility issues?

[Nigel Griffin <ngriffin vuze com>]

Hi,

I'm running on a 64-bit (Ubuntu 10.04) machine, and I get the following types of warning from valac:

warning: format ‘%llu’ expects type ‘long long unsigned int’, but argument 2 has type ‘guint64’

I'm guessing 'long long unsigned int' on my system is bigger than than 64 bits since I'm on a 64 bit machine.

If there any kind of configuration flag I need to pass to valac to make sure it does the right thing on a 64 
bit machine?  Do I need to rebuild valac for 64 bit?  And if so, what do I need to set to do this?

Any help will be greatly appreciated.

-Nigel