Help needed for debugging OCaml failure on m68k

Hi all,

OCaml 5.2.0 FTBFS on m68k:

 
https://buildd.debian.org/status/fetch.php?pkg=ocaml&arch=m68k&ver=5.2.0-1%7Eexp1&stamp=1718285451&raw=0

The failure happens very early, at the very first run of the bytecode 
interpreter (ocamlrun). It seems to be related to a thread local 
variable that moves unexpectedly. I've posted reports of my 
investigations in an issue on the upstream github:

   https://github.com/ocaml/ocaml/issues/13249

To reproduce the problem quickly:
- unpack ocaml 5.2.0 source package
- ./configure --enable-imprecise-c99-float-ops
- make coldstart

Is there some subtlety with thread local variables on m68k?


Cheers,