[Vala] Typedeffing globally with Vala

[Tarnyko <tarnyko tarnyko net>]

Hi folks, 

Right now, I have the following Vala source code : 

#if G_OS_WIN32
int64 mymvar;
#else
Posix.off_t myvar;
#endif 

vapimethod (myvar); 

And in my VAPI : 

#if G_OS_WIN32
void vapimethod (int64 var);
#else
void vapimethod (Posix.off_t var);
#endif 


I'd like to be able to do the following, as this is possible in C : 

#ifdef G_OS_WIN32
typedef int64 Posix.off_t;
#endif 

So I'd only have to put this at the beginning of my code, and I won't need 
to change the rest of the code nor the VAPI. 

Is it possible in Vala ? I know the "typedef" keywork doesn't exist here. 

Regards,
Tarnyko