On Thu 04 Feb 2016 03:41, Mark H Weaver <m...@netris.org> writes: >> Probably, ‘syntax-session-id’ would have to be a SRFI-39 parameter > > This might adversely affect the efficiency of our macro expander on > platforms with slow thread local variables
I think you shouldn't worry about this. The VM keeps a pointer to the current thread, and accesses the dynamic state / dynamic stack from there. There are no pthread_getkey calls when accessing parameters in the normal case. Andy
