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Re: ocaml 3.04-3 uploaded

Sorry for the long delay ...

Yes, i like this solution, i will implement it nextly, but i will upload the
-5 package without it in the meantime, since it contains many stuff needed by
other people, and also i would very much like to know how the different
architectures handle the ocaml-native-compilers/ocaml-nbest-compilers stuff.

Saddly, the ld.conf file doesn't allow any kind of comment in the front of the
package, but i will try to hack the corresponding bit of the ocaml source in
order to allow it.

On Tue, Jan 15, 2002 at 11:13:59PM +0100, Denis Barbier wrote:
> On Mon, Jan 14, 2002 at 03:06:15PM +0100, Sven wrote:
> [...]
> > Mmm, Xavier told me that ld.conf was built using /etc/ld.conf as example, so
> > it is more a configuration file.
> > 
> > Also it makes sense to let users modify them by hand, imagine people adding a
> > homebuilt library or something such, without any knowledge of how debian
> > works.
> > 
> > That said, we could imagine handling 2 such databases ?
> This indeed looks like a good idea.  Here is a suggestion:
>   * /etc/ocaml/paths: configuration file which is manually edited 
>     by sysadmins
>   * /var/lib/ocaml/dpkg-paths: file automatically modified by dpkg
>     (its name is dpkg-paths in this mail to distinguish it from the
>     previous one, but it could be /var/lib/ocaml/paths).
>   * /usr/lib/ocaml/ld.conf: this file is generated by merging the 2 previous
>     ones.
> File syntax:
> i.  paths:
>      <directory>     <action>
>     where
>       * directory is ..... guess what?
>       * action:
>          add        add a directory to search path before system wide settings
>          addafter   add a directory to search path after system wide settings
>          discard    remove a directory from search path even if it is defined
>                     in dpkg-paths
> ii. dpkg-paths:
>      <directory>     add     <package>
>     where <package> is the name of the package which inserted this entry.
> Thus both files can be described by a similar syntax:
>      <directory>     <action>    <package>
> the 3rd field being optional.
> Allowing comments (with an hash sign for instance) would be nice.
> The ocaml-ldconf is used to insert and remove entries from dpkg-paths,
> and generate ld.conf.
> It could accept the following options:
>   -p package     sets package name
>   -a dir         adds a line `dir add package' into dpkg-paths if such
>                  a line does not exist
>   -r dir         remove lines `dir add package' from dpkg-paths if found
>   -n             do not update ld.conf
> When invoked without -n flag, ocaml-ldconf regenerates ld.conf this way:
>   * it reads paths line by line, and builds
>      a) D1: list of directories to insert before system dirs
>      b) D2: list of directories to insert after system dirs
>      c) I:  list of directories to ignore
>   * after that, it reads dpkg-paths line by line, and builds a directory
>     list D3 by skipping those found in I.
> Then D1+D3+D2 is written into /usr/lib/ocaml/ld.conf
> It would also be nice if a warning line could be added to ld.conf to
> prevent users from manually editing this file.
> Last, ocaml-ldconf could be called directly by sysadmin to update ld.conf
> after editing paths, or by maintainer scripts with arguments:
>   * in postinst:
>       ocaml-ldconf -p package -a dir1 -a dir2 -a dir3
>   * in postrm:
>       ocaml-ldconf -p package -r dir1 -r dir2 -r dir3
> Denis
> -- 
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