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<[email protected]> 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
>>>> <[email protected]> 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
>>>>> [email protected]
>>>>> http://lists.puredata.info/listinfo/gem-dev
>>>>
>>>>
>>>> --
>>>> ____________________
>>>> m.e.grimm | m.f.a | ed.m.
>>>> [email protected]
>>>> _________________________________
>>>>
>>>> _______________________________________________
>>>> GEM-dev mailing list
>>>> [email protected]
>>>> http://lists.puredata.info/listinfo/gem-dev
>>>
>>>
>>> ----------------------------------------------------------------------------
>>>
>>> http://at.or.at/hans/
>>>
>>>
>>
>>
>
> --
> http://nim.on.free.fr
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