the default make install command from git repo install gem into
/usr/local/include
--
do it yourself
http://antoine.villeret.free.fr


2012/12/27 Hans-Christoph Steiner <h...@at.or.at>:
>
> What installs the headers into /usr/local/include/Gem?  The Gem package in 
> Debian/Ubuntu installs into /usr/include/Gem, so -I/usr/include/Gem needs to 
> be there.  If some standard installer installs into /usr/local/include/Gem, 
> then I'd keep -I /usr/local/include/Gem in CFLAGS_linux, otherwise I'd leave 
> it to people to edit the Makefile to add their custom Gem header install 
> locations.
>
> .hc
>
> On Dec 27, 2012, at 9:30 AM, Antoine Villeret wrote:
>
>> hi,
>>
>> thansk for that,
>>
>> i had to change the CLAGS_linux variable (line 39) to :
>> CFLAGS_linux = -I/usr/local/include/Gem `pkg-config --cflags opencv`
>>
>> to make it
>> but I don't know if I should or not push it to the SVN ?
>>
>> --
>> do it yourself
>> http://antoine.villeret.free.fr
>>
>>
>> 2012/12/27 Hans-Christoph Steiner <h...@at.or.at>:
>>>
>>> Ok, I committed a Makefile based on the Library Template.  It does not 
>>> build pix_opencv_contours.cc pix_opencv_matchshape.cc, they both gave a big 
>>> dump of roughly the same errors.
>>>
>>> The template Makefile will handle a lot of things automatically for you, 
>>> the trade-off is that its strict about certain things: every object must 
>>> have a help patch, all example files must go into examples/, etc.  The 
>>> template Makefile is really easy to make a Debian package from too.
>>
>> really easy why not, but how ?
>> if I should make it myself I need a little more help...
>> the links on the page : http://puredata.info/dev/DebianPackagingStructure
>> are not broken but doesn't point to the right discussion...
>> anyway, I found the discussion and others but can't find anywhere a
>> good step by step howto build debian package
>> sorry, this will be my first debian package :-)
>>
>>
>>>
>>> * is pix_opencv_opticalflow.pd an example or an abstraction?  If its an 
>>> example, it should go into examples/ with of.frag. If its an abstraction, 
>>> it should have a help patch.  Or if its just a text patch, it can be left 
>>> out of the Makefile and left as is.
>>
>> I forgot this one...
>> I placed it in the examples/ folder for now
>> but working on optical flow externals is in my todo list (with gpu and 
>> opencl)
>>
>>>
>>> * pix_opencv_blobtrack.cc seems to require opencv2, does that mean both 
>>> opencv 1.2 and opencv 2.x need to be installed?  Is there an OpenCV2 
>>> framework for Mac OS X?
>>
>> yes, most of recent and future externals take advantages of the new
>> C++ API of OpenCV 2.x
>> OpenCV 2 releases are distribute as a tarball for Linux/OSX, there is
>> no Framework on the download page http://opencv.org/downloads.html
>> and a quick search lead to multiple posts over the internet on how to
>> build it by hand (which very easy since the new cmake system)
>> and also a precompiled package :
>> http://vislab.cs.vt.edu/~vislab/wiki/images/4/44/OpenCV2.0.dmg
>> found here : http://opencv.willowgarage.com/wiki/Mac_OS_X_OpenCV_Port
>> but it's obsolete
>>
>> ++
>> a
>>
>>>
>>> On Mac OS X, I was building against Pd-extended 0.43 since pix_opencv uses 
>>> some new Gem headers that aren't included in Pd-extended 0.42.  The 
>>> template Makefile automatically looks in Pd-extended if its in 
>>> /Applications.  If you want to choose which version of Pd-extende to build 
>>> against:
>>>
>>> make PD_PATH=/Applications/Pd-0.43.4-extended-20121223.app/Contents/Resource
>>>
>>> .hc
>>>
>>> On Dec 26, 2012, at 3:11 PM, Antoine Villeret wrote:
>>>
>>>> hello,
>>>>
>>>> I made an update today on pix_opencv with an improvement of
>>>> pix_opencv_contours which is now a complete replacement of other
>>>> pix_opencv_contours_* objects
>>>>
>>>> and I sent a private mail to Lluis even if I found some old mails on
>>>> this list by him and i never get any answer
>>>> so maybe you can go ahead according to the "one week consensus" ?
>>>>
>>>> there is actually one strange make rule, its for a custom blobtracker
>>>> but I will change this as soon as i have time
>>>>
>>>> merry chrismas to all
>>>>
>>>> cheers
>>>>
>>>> a
>>>> --
>>>> do it yourself
>>>> http://antoine.villeret.free.fr
>>>>
>>>>
>>>> 2012/12/13 Hans-Christoph Steiner <h...@at.or.at>:
>>>>>
>>>>> On Dec 13, 2012, at 12:21 PM, Antoine Villeret wrote:
>>>>>
>>>>>> 2012/12/13 Hans-Christoph Steiner <h...@at.or.at>:
>>>>>>>
>>>>>>> On Dec 13, 2012, at 3:43 AM, IOhannes m zmoelnig wrote:
>>>>>>>
>>>>>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>>>>>> Hash: SHA1
>>>>>>>>
>>>>>>>> On 2012-12-12 19:42, Antoine Villeret wrote:
>>>>>>>>> i've already tried to make a C++ external from the template but i
>>>>>>>>> never reach something which works so if you have a working template
>>>>>>>>> please let me know
>>>>>>>>
>>>>>>>> pix-opencv depends on external libraries, and afaik often needs
>>>>>>>> specific versions thereof.
>>>>>>>> i think it is a perfect candidate to *not* use a template Makefile but
>>>>>>>> instead use something more intelligent like autotools, scons,
>>>>>>>> cmake,...which reminds me that it already does use autoconf
>>>>>>>
>>>>>>>>> and what about including it in Gem ? as it depends on it (and it
>>>>>>>>> may depends on very new feature such as ROI soon) i think it's a
>>>>>>>>> better choice
>>>>>>>>
>>>>>>>> pix-opencv is developed by different people than Gem. i think it is
>>>>>>>> good to keep the repositories (and user-management) separate.
>>>>>>>> so: i'd rather not have pix-opencv be "part" of Gem.
>>>>>>>>
>>>>>>>> but:
>>>>>>>>
>>>>>>>> i agree that pix-opencv could be made more readily available to users.
>>>>>>>> it might be a good idea to distribute it together with Gem-releases.
>>>>>>>>
>>>>>>>> so:
>>>>>>>>
>>>>>>>> the build-system needs little changes to build a pix_opencv found in
>>>>>>>> extra/ (basically, uncomment the relevant lines at the end of
>>>>>>>> extra/configure.ac and add a line to extra/Makefile.am)
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> we could then create a script that pulls in pix-opencv to
>>>>>>>> extra/pix_opencv before the builds are actually started.
>>>>>>>
>>>>>>> autotools are very useful for detecting platform differences and making 
>>>>>>> the build system respond differently based on that, like handling 
>>>>>>> multiple optional dependencies like in Gem.  For the case you describe, 
>>>>>>> that works well with the template Makefile.  For an object that 
>>>>>>> requires a specific library, add it to LDFLAGS.  If that library not 
>>>>>>> installed, it'll throw an error, which is what you want since the 
>>>>>>> object requires that library.  pix_opencv requires opencv, and does 
>>>>>>> nothing without it, so no autotools necessary.
>>>>>>
>>>>>> I don't know anything about autotool and it looks like quite dark for
>>>>>> me so if i can avoid another headache it's better :-)
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> As for version differences, I generally find it way too much work to 
>>>>>>> support building against various versions of the API and just choose 
>>>>>>> one and standardize on it.  Then, once this lib is widely distributed 
>>>>>>> it could be worth building against different versions of opencv if 
>>>>>>> there is demand.  First get it out there for the majority of users, 
>>>>>>> then deal with any relevant edge cases, otherwise you are likely to 
>>>>>>> spend lots of time dealing with edge cases that might not really be 
>>>>>>> relevant.
>>>>>>>
>>>>>>> My problem with autotools is that very few people know how to modify 
>>>>>>> it, so the build system then rots because its not maintained and other 
>>>>>>> issues.  I've seen this happen to a lot of autotools build systems in 
>>>>>>> Pd projects over the years.  For example, Gem's autotools setup has 
>>>>>>> gotten so complex, its almost impenetrable for me, and I've done a fair 
>>>>>>> amount of autotools.  This is one reason to not include every object in 
>>>>>>> Gem.
>>>>>>>
>>>>>>> The Makefile that's there is already quite close to working. I'm happy 
>>>>>>> to commit fixes to get it working if that's OK with the maintainers.  
>>>>>>> I've committed to pix_opencv before.  Indeed I did this work back in 
>>>>>>> 2009 but sevy objected so it was reverted and abandoned:
>>>>>>>
>>>>>>> http://pure-data.svn.sourceforge.net/viewvc/pure-data/trunk/externals/pix_opencv/Makefile?r1=12563&r2=12571
>>>>>>
>>>>>> I think we should ask Lluis for that
>>>>>> with the current Makefile in the SVN man should have opencv >= 2.3
>>>>>> (some externals won't compile with previous OpenCV version) but there
>>>>>> is not check about that I think
>>>>>> and I can build with
>>>>>> ./configure --with-pd=<PATH> --with-gem=<PATH>
>>>>>> make
>>>>>
>>>>> The Makefile equivalent of this is:
>>>>>
>>>>> make PD_SRC=<PATH> GEM_SRC=<PATH>
>>>>>
>>>>> Otherwise it'll look in the default installed locations for the headers.
>>>>>
>>>>>> but only tested on Ubuntu
>>>>>> I don't know if it could build on other linux distro and even less on
>>>>>> Mac OS X and Windows
>>>>>> Should fixing that Makefile.in be a starting point to distrute the 
>>>>>> package ?
>>>>>
>>>>> Let me know and i'll do it.  Is Lluis on this list?  Yes, I can include 
>>>>> 'make osx_tarball' so its easy to make the tarball for releases.
>>>>>
>>>>> .hc
>>>>>
>>>>>
>>>
>

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