+ "Make SYMBOL unbound, removing any value it may currently have."
+ (set symbol
+ (%primitive sb!c:make-other-immediate-type
+ 0
+ sb!vm:unbound-marker-widetag))
+ symbol)
+
+;;; Return the built-in hash value for SYMBOL.
+
+;;; only backends for which a SYMBOL-HASH vop exists. In the past,
+;;; when the MIPS backend supported (or nearly did) a generational
+;;; (non-conservative) garbage collector, this read (OR X86 MIPS).
+;;; Having excised the vestigial support for GENGC, this now only
+;;; applies for the x86 port, but if someone were to rework the GENGC
+;;; support, this might change again. -- CSR, 2002-08-26
+#!+x86
+(defun symbol-hash (symbol)