On Wednesday, May 6, 2015 at 4:59:16 AM UTC+10, Jameson wrote:
>
> If I'm reading the error message correctly, when libopencv_videoio was
> built, it incorrectly specified it's path as a relative location to the
> current working directory. Accordingly, you need to chdir("/usr/local") to
> be able to use this library or use `install_name_tool` to fix the internal
> name of the library and/or relink everything.
>
IIUC that should be ok, dlopen searches relative to /usr/lib, see the last
item on the list http://linux.die.net/man/3/dlopen
>
> On Tue, May 5, 2015 at 2:42 PM Max Suster <[email protected] <javascript:>>
> wrote:
>
>>
>> I realize that it might be useful to include the code for the error I
>> observed, so here it is.
>> All .dylib libraries are listed by pkg-config in the terminal and work
>> with XCode.
>>
>> This works
>> julia> lib = "/usr/local/lib/libopencv_core"
>> "/usr/local/lib/libopencv_core"
>>
>> julia> Libdl.dlopen(lib, Libdl.RTLD_GLOBAL)
>> Ptr{Void} @0x00007fd4ad333de0
>>
>> This does NOT work
>> julia> lib = "/usr/local/lib/libopencv_highgui"
>> "/usr/local/lib/libopencv_highgui"
>>
>> julia> Libdl.dlopen(lib, Libdl.RTLD_GLOBAL)
>> ERROR: could not load module /usr/local/lib/libopencv_highgui:
>> dlopen(/usr/local/lib/libopencv_highgui.dylib, 9): Library not loaded:
>> lib/libopencv_videoio.3.0.dylib
>>
>> Referenced from: /usr/local/lib/libopencv_highgui.dylib
>> Reason: image not found
>> in dlopen at ./libdl.jl:33
>>
>> I will be grateful for any tips on what is going on.
>>
>>
>> On Tuesday, May 5, 2015 at 5:33:10 PM UTC+2, Max Suster wrote:
>>>
>>>
>>> When trying to load 8 shared .dylibs from my OpenCV.jl package on the
>>> most recent v0.4-dev (OSX 10.10.3), I got an error indicating that dlopen_e
>>> and dlopen are deprecated. So I added the Libdl. to each, and tried again.
>>>
>>>
>>> Now it seems that only the core library, libopencv-core.dylib, can be
>>> loaded but not the rest. I also tried adding the libs path to Julia, and
>>> cd to /usr/local/lib which contains the libraries, but still I can not load
>>> the libs.
>>>
>>> The error I get is "Image can not be found, see Lidl.jl line 33". The
>>> libs are properly compiled - pkg-config lists all of them and they work
>>> when linked to my C++ OpenCV projects in Xcode.
>>>
>>> Any thoughts on why dlopen is not working this way? Thanks in advance.
>>>
>>>
