got it... yes worked.... i get:

dylib loading file './gem_videoVLC.so'!

now though i get:

[pix_video]: backend #0='vlc'   : vlc
GLEW version 1.5.4
[pix_video]: no valid video backend found

hmmm
?

On Wed, Apr 4, 2012 at 12:46 PM, Hans-Christoph Steiner <h...@at.or.at> wrote:
>
> I am actually proposing the opposite renaming.  I am assuming that the VLC 
> plugin is useless without VLC itself.  I see no need to include libvlc in Gem 
> if videoVLC can use the libvlc included in the VLC.app.  Therefore, 
> gem_videoVLC.so should link against 
> /Applications/VLC.app/Contents/MacOS/lib/libvlc.5.dylib.
>
> I couldn't see what in the Gem build system is changing the lib path to 
> @loader_path/lib/libvlc.5.dylib.  For most libs, that makes sense, but 
> probably not here.
>
> But for Mark, this should fix his issue:
>
> install_name_tool -change \
>        @loader_path/lib/libvlc.5.dylib \
>        /Applications/VLC.app/Contents/MacOS/lib/libvlc.5.dylib \
>        gem_videoVLC.so
>
> .hc
>
> On Apr 4, 2012, at 12:19 PM, Nicolas Montgermont wrote:
>
>> no,
>>
>> you need to redefine the reference of the library,
>> in the directory of your plugin:
>>
>> install_name_tool -change 
>> /Applications/VLC.app/Contents/MacOS/lib/libvlc.5.dylib 
>> @loader_path/lib/libvlc.5.dylib gem_videoVLC.so
>>
>> should work,
>> I'm not sure of the order, see explanations here for example:
>> http://qin.laya.com/tech_coding_help/dylib_linking.html
>>
>> any idea for the problem in my case?
>>
>> n
>> Le 04/04/12 16:43, m.e.grimm a écrit :
>>> hey hans...
>>>
>>> are you talking about configuring Gem with something like this:
>>>
>>> CPPFLAGS=-I/Applications/VLC.app/Contents/MacOS/include
>>> LDFLAGS=-L/Applications/VLC.app/Contents/MacOS/lib/ ./configure
>>> --with-pd=/Applications/Pd-extended.app/Contents/Resources/include/pd/
>>> --enable-fat-binary=x86_64 --with-ftgl-includes=/sw/include/
>>> --with-libvlc-includes=-I/Applications/VLC.app/Contents/MacOS/include
>>> --with-libvlc-libs=-L/Applications/VLC.app/Contents/MacOS/lib
>>>
>>> because when I do so I get the same @loader_path/lib/libvlc.5.dylib
>>>
>>> m
>>>
>>> On Wed, Apr 4, 2012 at 9:58 AM, Hans-Christoph Steiner<h...@at.or.at>  
>>> wrote:
>>>> @loader_path is where the plugin was loaded from, so in your case:
>>>> /Users/megrimm/Library/Pd/Gem/plugins/videoVLC/.libs/
>>>>
>>>> That means its looking for libvlc here:
>>>> /Users/megrimm/Library/Pd/Gem/plugins/videoVLC/.libs/lib/libvlc.5.dylib
>>>>
>>>> On Mac OS X, the thing to do is to link against the libvlc included in the 
>>>> VLC app.Then anyone who wants to use the VLC plugin for Gem just installs 
>>>> the normal VLC app.  You can find that here:
>>>> /Applications/VLC.app/Contents/MacOS/lib/
>>>>
>>>> That would mean adding -I/Applications/VLC.app/Contents/MacOS/include to 
>>>> CPPFLAGS and -L/Applications/VLC.app/Contents/MacOS/lib/ to LDFLAGS for 
>>>> the build.  IMHO, the Gem build system would do that when it builds the 
>>>> VLC plugin on Mac OS X.
>>>>
>>>> .hc
>>>>
>>>>
>>>> On Apr 4, 2012, at 8:40 AM, m.e.grimm wrote:
>>>>
>>>>> hey nicolas
>>>>>
>>>>> i reproduced what you did and also ended up with the gem_videoVLC.so
>>>>> plugin, though on x86_64, with "[pix_video]: no video backends
>>>>> found!".
>>>>>
>>>>> I am also getting:
>>>>> library loading returned: dlerror 'dlopen(./gem_videoVLC.so, 2):
>>>>> Library not loaded: @loader_path/lib/libvlc.5.dylib
>>>>>  Referenced from:
>>>>> /Users/megrimm/Library/Pd/Gem/plugins/videoVLC/.libs/gem_videoVLC.so
>>>>>  Reason: image not found'
>>>>>
>>>>> though i differ with you in running otool -l gem_videoVLC.so:
>>>>> Load command 12
>>>>>          cmd LC_LOAD_DYLIB
>>>>>      cmdsize 56
>>>>>         name @loader_path/lib/libvlc.5.dylib (offset 24)
>>>>>   time stamp 2 Wed Dec 31 19:00:02 1969
>>>>>      current version 9.0.0
>>>>> compatibility version 9.0.0
>>>>>
>>>>> maybe we can figure this out today. let me know what you find out.
>>>>> seems to just not be finding libvlc.5.dylib and thats all....
>>>>>
>>>>> cheers
>>>>> m
>>>>>
>>>>>
>>>>> On Wed, Apr 4, 2012 at 3:56 AM, Nicolas Montgermont
>>>>> <nicolas_montgerm...@yahoo.fr>  wrote:
>>>>>> Le 03/04/12 22:45, IOhannes m zmölnig a écrit :
>>>>>>
>>>>>>> $ cd /path/to/Gem
>>>>>>> $ LD_LIBRARY_PATH=/Applications/VLC.app/Contents/MacOS/lib pd -lib Gem
>>>>>>>
>>>>>> The log is the same with or without the LD_LIBRARY_PATH, it is:
>>>>>>
>>>>>> Machiavel:Gem nix$ 
>>>>>> LD_LIBRARY_PATH=/Applications/VLC.app/Contents/MacOS/lib
>>>>>> /Applications/Pd-extended.app/Contents/MacOS/Pd-extended
>>>>>> [...]
>>>>>> load plugins 'video' in './'
>>>>>> pattern : ./gem_video*.so
>>>>>> dylib loading file './gem_videoDarwin.so'!
>>>>>> dylib loading file './gem_videoVLC.so'!
>>>>>> library loading returned: dlerror 'dlopen(./gem_videoVLC.so, 2): Symbol 
>>>>>> not
>>>>>> found: _libvlc_media_add_option
>>>>>>  Referenced from:
>>>>>> /Users/nix/github/Gem/plugins/videoVLC/.libs/gem_videoVLC.so
>>>>>>  Expected in: flat namespace
>>>>>>  in /Users/nix/github/Gem/plugins/videoVLC/.libs/gem_videoVLC.so'
>>>>>>
>>>>>>
>>>>>> I'm not sure what it means,...
>>>>>> what I don't understand is it doesn't seen to be linked at all to libvlc:
>>>>>>
>>>>>> Machiavel:Gem nix$ otool -L gem_videoVLC.so
>>>>>> gem_videoVLC.so:
>>>>>>    /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current 
>>>>>> version
>>>>>> 7.9.0)
>>>>>>    /System/Library/Frameworks/QuickTime.framework/Versions/A/QuickTime
>>>>>> (compatibility version 1.0.0, current version 1789.0.0)
>>>>>>    /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon
>>>>>> (compatibility version 2.0.0, current version 152.0.0)
>>>>>>    /System/Library/Frameworks/Cocoa.framework/Versions/A/Cocoa
>>>>>> (compatibility version 1.0.0, current version 15.0.0)
>>>>>>    /System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility
>>>>>> version 1.0.0, current version 1.0.0)
>>>>>>    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current 
>>>>>> version
>>>>>> 125.2.11)
>>>>>>    /usr/lib/libz.1.dylib (compatibility version 1.0.0, current version
>>>>>> 1.2.3)
>>>>>>
>>>>>>
>>>>>> libvlc is only appearing in the search path of the library loading:
>>>>>>
>>>>>> Machiavel:Gem nix$ otool -l gem_videoVLC.so
>>>>>> [...]
>>>>>> Load command 14
>>>>>>    cmd LC_RPATH
>>>>>>    cmdsize 68
>>>>>>    path /Applications/VLC.app/Contents/MacOS/lib/libvlc.dylib (offset 12)
>>>>>>
>>>>>> any idea? I'm copying the plugins and the Gem.pd_darwin inside 
>>>>>> Pd-extended
>>>>>> extra/Gem path if that matters.
>>>>>> thx,
>>>>>> n
>>>>>>
>>>>>>
>>>>>> --
>>>>>> http://nim.on.free.fr
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> GEM-dev mailing list
>>>>>> GEM-dev@iem.at
>>>>>> http://lists.puredata.info/listinfo/gem-dev
>>>>>
>>>>>
>>>>> --
>>>>> ____________________
>>>>> m.e.grimm | m.f.a | ed.m.
>>>>> megr...@gmail.com
>>>>> _________________________________
>>>>>
>>>>> _______________________________________________
>>>>> GEM-dev mailing list
>>>>> GEM-dev@iem.at
>>>>> http://lists.puredata.info/listinfo/gem-dev
>>>>
>>>>
>>>> ----------------------------------------------------------------------------
>>>>
>>>>                                              http://at.or.at/hans/
>>>>
>>>>
>>>
>>>
>>
>> --
>> http://nim.on.free.fr
>
>
>
> ----------------------------------------------------------------------------
>
> There is no way to peace, peace is the way.       -A.J. Muste
>
>



-- 
____________________
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megr...@gmail.com
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