On Tue, 05 Feb 2008, Ingo Schwarze wrote:
>  about half a year ago, i sent the message included below to this
>  list, but according to the archive at aspn.activestate.com, there
>  was never any reply.

Hi Ingo,

Sorry about not replying to your message before; I must have missed it.

I've looked at your original message, and see why it is not working:

For the shared library, you need to add the modules as modules, and not
as the main script.  For example, you could use

    perlapp --shared --private --add MyPack::MyMod --script /dev/null
            --exe lib/MyLib.so

Instead of using /dev/null as the main script name you can of course
write a little text file MyLib.pl containing just require statements:

    require MyPack::MyMod

and then build the lib as

    perlapp --shared --private MyLib.pl --exe lib/MyLib.so

This avoids having to --add the modules on the commandline.

Note that you can put many Perl modules into a single shared library,
not just one.  This is generally advisable as there is still some
fixed sized overhead for each library.

>  I'm still wondering
>   * whether PDK 6.0 is indeed unable to compile Perl modules
>     with multiple-component names into PDK shared objects

It should be possible with the changes I explained above.

>   * in case this was a known limitation, whether it is fixed in 7.1
>   * in case this is fixed in 7.1, whether it will work together
>     with using the shared version of libperl.

Yes, it will work with a shared libperl.  By default the libperl.so
will be bundled in the shared library MyLib.so, but it will be
faster to use --xclude to exclude it and bundled it separately
in your runlib directory (you need to specify --xclude when
building both the library *and* the app).

Regarding unloading of modules, that is really outside the scope
of PerlApp.  You should be able to do it the same way you would
do it in plain Perl (deleting namespaces etc).

Cheers,
-Jan


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