create a compiler switch for jocaml

[avsm]

from luc maranget:

It is my pleasure to announce the new release (4.00.0) of JoCaml.                                                                                                                                              

JoCaml is the concurrrent and distributed extension of OCaml based upon                                                                                                                                        
the join-caculus.                                                                                                                                                                                              

The new release follows OCaml evolution, it may be that the integration                                                                                                                                        
of OCaml new features such as GADT and binary annotations is far                                                                                                                                               
from perfect...                                                                                                                                                                                                


The new release is available from JoCaml web site:                                                                                                                                                             
<http://jocaml.inria.fr/>                                                                                                                                                                                      
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[samoht]

Any idea how to handle the version scheme for this ? 4.00.0+jocaml. This will make packages with constraints on ocaml-version to stay available. I'm curious to see how many packages will continue to build with jocaml ...

[avsm]

yeah the + suffix seems appropriate for compiler variants. it'll certainly be nice to do a full package run with these variants and see how well 3rd party packages do!

[avsm]

this is now present