[tz] make error

[Steffen Nurpmeso]

Paul Eggert wrote in
 <49c2b057-78da-477e-a6e1-2ef48fdc7b45 at cs.ucla.edu>:
 |On 2023-11-18 15:01, Steffen Nurpmeso wrote:
 ...
 |The idea is to write clean C23 code, and that eventually (in 2053, say) 
 |we can remove the obsolete code. In the meantime the C23 code serves as 
 |the model for the obsolete stuff, so it is commentary on older platforms.
 ...
 |public domain. So tzcode makes do with awkward #ifdefs instead. (All I 
 |can say for tzcode is, wait until 2053! :-)

I would like to see this.

Ciao,

--steffen
|
|Der Kragenbaer,                The moon bear,
|der holt sich munter           he cheerfully and one by one
|einen nach dem anderen runter  wa.ks himself off
|(By Robert Gernhardt)