-# define __gthrw_asmname(cname) __gthrw_asmnamep (__USER_LABEL_PREFIX__, cname)
-# define __gthrw_asmnamep(prefix, cname) __gthrw_string (prefix) cname
-# define __gthrw_string(x) #x
-# define __gthrw(name) \
- extern __typeof(name) __gthrw_ ## name __asm (__gthrw_asmname (#name))