-(def-c-var-frob sb!vm:control-stack-start "control_stack")
-#!+x86 (def-c-var-frob control-stack-end "control_stack_end")
-(def-c-var-frob sb!vm:binding-stack-start "binding_stack")
-(def-c-var-frob sb!vm:current-dynamic-space-start "current_dynamic_space")
-