On Wednesday, May 6, 2015 at 10:13:13 AM UTC+10, Jameson wrote: > > On Mac, dlopen doesn't do a search, since (unlike linux) the actual > install path gets baked into the dylib at compile (link) time: > https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man3/dlopen.3.html > > Hence the error message: "Library not loaded: > lib/libopencv_videoio.3.0.dylib" literally means > "$pwd/lib/libopencv_videoio.3.0.dylib" did not exist. >
Ok, reading the page linked above, maybe Max can try setting one of the mentioned environment variables as a temporary workaround? > On Tue, May 5, 2015 at 6:53 PM <[email protected] <javascript:>> wrote: > >> >> >> 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]> 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. >>>>> >>>>>
