* fixed another bug in backquote printing: no more destructive
modification of the form's list structure. (reported by Brian
Downing)
+ * fixed bug in INTERRUPT-THREAD: pin the function, so that it cannot
+ move between its address being taken and the call to
+ interrupt_thread, fixing a crashing race condition.
* the SB-POSIX contrib implementation has been adjusted so that it
no longer exhibits ridiculously poor performance when constructing
instances corresponding to C structs.