On Wed, Jan 9, 2013 at 5:28 AM, Gustavo Sverzut Barbieri
<barbi...@profusion.mobi> wrote:
> On Tue, Jan 8, 2013 at 8:26 PM, Gustavo Sverzut Barbieri <
> barbi...@profusion.mobi> wrote:
>
>> On Tue, Jan 8, 2013 at 7:14 AM, Arvind R <arvin...@gmail.com> wrote:
>>
>>> On Tue, Jan 8, 2013 at 2:18 AM, Gustavo Sverzut Barbieri
>>> <barbi...@profusion.mobi> wrote:
>>> > On Mon, Jan 7, 2013 at 9:14 AM, Arvind R <arvin...@gmail.com> wrote:
>>> >
>>> >> Hi all,
>>> >>
>>> >> After getting xine backend working in emotion, tried generic (vlc)
>>> >> backend. Nope - doesn't work -:(
>>> >>
>>> >> Problem 1: Using the example source, now need to add:
>>> >> emotion_object_module_option_set(em, "player", "vlc");
>>> >>
>>> >> It does not fall-back to the default generic player.
>>> >>
>>> >> Problem 2:
>>> >> em_player_vlc cannot be found, because generic_module_init() fails to
>>> >> set the prefixes proper.
>>> >>
>>> >> So put printf() and recompiled. (Is there is a small howto on the eina
>>> >> logging system?) Output:
>>> >>
>>> >> evas engine: <auto>
>>> >> emotion backend: generic
>>> >> vis: 0
>>> >> geometry: 0 0 960x540
>>> >> generic_module_init: initing libdir to /usr/lib/x86_64-linux-gnu
>>> >>
>>> >
>>> > this seems wrong already, is it PACKAGE_LIB_DIR? why does it contain
>>> > x86_64-linux-gnu? in Makefile.am it's just $(libdir), did you specify
>>> > something with --libdir?
>>> >
>>> Yes. '$prefix/lib/$DEB_ARCH. The x86_64-linux-gnu is correct.
>>> >
>>> >
>>> >> generic_module_init: got libdir /usr/lib/lib
>>> >>
>>> >
>>> > yet another very weird result. double "lib" in the path? Where are you
>>> > installing these things?
>>> >
>>> > eina_prefix_new() will use the given symbol (emotion_object_add) and
>>> dladdr
>>> > to know which file it came from. Should be the libemotion.so. Then it
>>> gets
>>> > the directory where libemotion.so is contained, should be /usr/lib if
>>> it's
>>> > /usr/lib/libemotion.so. Then it will remove the "lib" part to get the
>>> > prefix, later adding this again (this is what it should do, did not
>>> test to
>>> > see if it's correct).
>>> >
>>> Ah-ah! The logic is IMHO, wrong! My installation is a multiarch debian
>>> install. The x86_64 libdir is '/usr/lib/x86_64-linux-gnu' and 32-bit
>>> version in 'usr/lib32' on a x86_64-linux-gnu system and '/usr/lib/' on
>>> a 'x86-linux-gnu' system. The modules get installed in sub-dirs of the
>>> library, e.g. libemotion.so gets installed in
>>> '/usr/lib/x86_64-linux-gnu/' and emotion modules in
>>> '/usr/lib/x86_64-linux-gnu/emotion/'.
>>>
>>
>> ok, got it and from this commit it seems to be handled
>> http://trac.enlightenment.org/e/changeset/74709
>>
>> (I mean the message, not the logic, will check that later).
>>
>>
>>
>>> This makes the 'MODULE_ARCH' variable in autoconf files unnecessary;
>>>
>>
>> not really as it also includes efl version. Also will allow installing to
>> shared /usr, like NFS used by multiple platforms (ppc, x86...)... in
>> theory, because in practice half of EFL doesn't conform with that (emotion,
>> ecore_imf, eeze/sensors, evas cserve2 binaries, efreet binaries...). I plan
>> to fix those soon.
>>
>>
>>
>>> and, as I have on my system (untested -:(), a lib32 AND a x86_64
>>> installation possible. This will conform to most packaging systems
>>> AFAIK, and definitely to Debian.
>>> If the logic is modified to scan from right to left the absence of
>>> '^lib' substring to get the prefix, and later add ALL the subsequent
>>> parts, all will be fine. Better still, have eina_prefix_new take the
>>> $PREFIX value too to enable a left-to-right scan.
>>>
>>
>>
>> I'll check the logic, but it's worth for you to check if you have that
>> patch in your version.
>>
>
> the logic assumes a magic file to check. That's why most libraries started
> to ship with "checkme" files.

checkme files for eeze|efreet|ecore-imf|evas installed in /usr/share/
>
> I did a fix for single tree efl as r82429. It would be nice if someone
> could backport this to stable branch.

Will check with current tip.
>

Arvind

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