#+sbcl (sb-ext:unlock-package "COMMON-LISP")

was added before the loads to keep SBCL happy.
This patch came from Matthias Hoelzl <tc@xantira.com>
Fix compilation issues on OSX Mavericks from Matthias Hoelzl <tc@xantira.com>
From Matthias Hoelzl <tc@xantira.com>: Fix build on Centos 6.5 x64