What is a compiler (vol. 63827) meets what are gensyms.

[Guy Steele <gls@THINK-AQUINAS.ARPA>]

    Date: Sat, 19 Apr 86 18:19  EST
    From: David A. Moon <Moon@SCRC-STONY-BROOK.ARPA>

    ...
    (DEFSETF BAR (#:G1890) (#:G1891) `(SET-BAR ,#:G1890 ,#:G1891)),
    where the symbols that look the same are EQ ...

Tangential point: the above can be rendered in Common Lisp without
a tag line in English as follows:

(DEFSETF BAR (#1=#:G1890) (#2=#:G1891) `(SET-BAR ,#1# ,#2#)),

--Guy