[Caml-list] OCaml release 4.09.1

[Caml-list] OCaml release 4.09.1

[Florian Angeletti]

Dear OCaml users,

We have the pleasure of celebrating the anniversary of the first spacewalk,
conducted by Alexei Leonov, by announcing the release of OCaml version 
4.09.1 .
This is mainly a bug-fix release, with a handful of configuration fixes and
a GC fix backported from 4.10.0 . See the list of changes below for more 
details.

It is (or soon will be) available as a set of OPAM switches,
and as a source download here:

   https://github.com/ocaml/ocaml/archive/4.09.1.tar.gz

Happy hacking,

— Florian Angeletti, for the OCaml team.

OCaml 4.09.1 changes:
-------------------------------

- #8855, #8858: Links for tools not created when installing with
   --disable-installing-byecode-programs (e.g. ocamldep.opt installed, but
   ocamldep link not created)
   (David Allsopp, report by Thomas Leonard)

- #8947, #9134, #9302: fix/improve support for the BFD library
   (Sébastien Hinderer, review by Damien Doligez and David Allsopp)

- #8953, #8954: Fix error submessages in the toplevel: do not display
   dummy locations
   (Armaël Guéneau, review by Gabriel Scherer)

- #8965, #8979: Alpine build failure caused by 
check-parser-uptodate-or-warn.sh
   (Gabriel Scherer and David Allsopp, report by Anton Kochkov)

- #8985, #8986: fix generation of the primitives when the locale 
collation is
   incompatible with C.
   (David Allsopp, review by Nicolás Ojeda Bär, report by Sebastian 
Rasmussen)

- #9050, #9076: install missing compilerlibs/ocamlmiddleend archives
   (Gabriel Scherer, review by Florian Angeletti, report by Olaf Hering)

- #9073, #9120: fix incorrect GC ratio multiplier when allocating custom 
blocks
   with caml_alloc_custom_mem in runtime/custom.c
   (Markus Mottl, review by Gabriel Scherer and Damien Doligez)

- #9144, #9180: multiple definitions of global variables in the C runtime,
   causing problems with GCC 10.0 and possibly with other C compilers
   (Xavier Leroy, report by Jürgen Reuter, review by Mark Shinwell)

- #9180: pass -fno-common option to C compiler when available,
   so as to detect problematic multiple definitions of global variables
   in the C runtime
   (Xavier Leroy, review by Mark Shinwell)

- #9128: Fix a bug in bytecode mode which could lead to a segmentation
   fault. The bug was caused by the fact that the atom table shared a
   page with some bytecode. The fix makes sure both the atom table and
   the minor heap have their own pages.
   (Jacques-Henri Jourdan, review by Stephen Dolan, Xavier Leroy and
    Gabriel Scherer)