in frames that do not have sufficient debug information.
* bug fix: exceeding FD_SETSIZE limit now results in an sensible error
(lp#316068)
+ * bug fix: (SETF DOCUMENTATION) of a macro works properly. (lp#643958, thanks
+ to Stas Boukarev)
changes in sbcl-1.0.42 relative to sbcl-1.0.41
* build changes