1.0.56.19)
* bug fix: run-program with :pty t no longer makes the pty as the process's
controling terminal.
+ * bug fix: spawning threads on OS X 10.8 no longer crashes the process
+ (lp#1012811).
changes in sbcl-1.0.57 relative to sbcl-1.0.56:
* RANDOM enhancements and bug fixes: