extern symbol _tss_cleanup_implemented?

[zhaozg]

static compile and link threads modules in vc8.0, I 
get  LNK2019: extern _tss_cleanup_implemented void int 
__cdecl `anonymous namespace'::init_tss_data(void)" (?
init_tss_data@?A0xea3bb32a@@YAXXZ) be refrenced

[zhaozg]

Logged In: YES 
user_id=1572760

extern "C" void tss_cleanup_implemented(void)
{
	/*
	This function's sole purpose is to cause a link 
error in cases where
	automatic tss cleanup is not implemented by 
Boost.Threads as a
	reminder that user code is responsible for calling 
the necessary
	functions at the appropriate times (and for 
implementing an a
	tss_cleanup_implemented() function to eliminate the 
linker's
	missing symbol error).

	If Boost.Threads later implements automatic tss 
cleanup in cases
	where it currently doesn't (which is the plan), the 
duplicate
	symbol error will warn the user that their custom 
solution is no
	longer needed and can be removed.
	*/
}