[gclist] tail recursion requires gc

[Bill Bill]

|   Date: Thu, 08 Aug 1996 14:04:00 +0000
|   From: William D Clinger <will@ccs.neu.edu>

|   Wilson, Henderson, O'Keefe, and probably others have identified
|   appropriate subsets, so it is just a matter of modifying gcc to
|   make the guarantee.  I'm all for it.

Agreed.  As I said in my original message, I would like to see this too.
I was just pointing out that you have to be careful, and that unless
you restrict yourself to some subset (of which I also mentioned one),
you would need a command line option.