Re: proposal: new ocaml dirs schema

[jmarant@nerim.net (Jérôme Marant)]

jmarant@nerim.net (Jérôme Marant) writes:


>   Well, keep in mind the problems Debian had with multiple Perl installed
>   at a time and reasons why it changed. Python provides multiple versions
>   but it also provides a dummy package pointing to the standard version of
>   Python. I have a pretty good idea of problems that can arise since I
>   followed such transitions.
>
>   What must be dealt with: all ocaml binaries must be in sync: you
>   must ensure that you'll never have ocamlc 3.04 with ocamlrun 3.06
>   for instance ; you must *not* use alternatives, it was the cause of
>   many problems with Perl.  The best way is the Python way as
>   explained Stefano with a dummy ocaml and ocaml-base pointing to
>   the standard version of ocaml.

  Well, let me add an extra example:

  A depends on B, and B provides dll.so from 3.04.
  Rebuilding B for 3.06 will break A since it will
  no longer find dll.so.
  So A have to depend on B-3.04.

  Cheers, 

-- 
Jérôme Marant

http://marant.org