How to give compiler error if a function parameter is not declared with __thread?

["Shaun Pinney" <shaun.pinney@xxxxxxxxxxxxxxxxxxx>]

Hello all,

I want to restrict a function parameter to variables declared with __thread.
Is there a way to generate compiler errors if a user uses an incompatible
storage class?  The idea is to improve the 'user-friendliness' of an OS
porting layer - specifically, the parts related to thread-local storage.

Thanks,
Shaun