#+COMMON, #+COMMON-LISP, #+CLtL1 or #+CLtL2?

From: Joerg-Cyril Hoehle
Subject: #+COMMON, #+COMMON-LISP, #+CLtL1 or #+CLtL2?
Date: Thu, 13 May 1993 13:41:44 +0000
Message-ID: <1993May13.134144.134030@eratu.rz.uni-konstanz.de>

Could someone enlighten me on the best possible/portable use of
features to distinguish between a CLtL1 conforming implementation and
a CLtL2 one?

I don't want to clobber the sources with #+(implementation-name)
features but I'd like to use a more generic, implementation
independent one, like the above cited ones.

I need this distinction for provide/require vs. defpackage handling
for example.

FYI, CMU (CLtL2) has #+COMMON, CLISP (CLtL1) has #+COMMON-LISP and
#+CLtL1 (with a numerical, not a roman one).

Thanks,
 	Joerg.
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