Another possibility... do you know what version of OpenCV you have? I know that 
OpenCV 3 was recently released, but I haven't tried it yet. If you're using 
3.x, and they renamed the libraries, I guess our build files could be using the 
old names.



> On Jul 24, 2015, at 5:14 PM, Larry Gritz <[email protected]> wrote:
> 
> I'm not exactly sure why you're having the build-time problems. I suspect 
> that it's multiple OpenCV versions installed, or installed in a set of 
> nonstandard places, or half of a correct installation. I dunno.
> 
> But maybe this will help you get unstuck: 
> https://github.com/OpenImageIO/oiio/pull/1194
> 
> Just adds a USE_OPENCV=0 option to the top-level Makefile so you can tell it 
> to skip all the OpenCV stuff even if it finds the headers.
> 
> 
> 
>> On Jul 23, 2015, at 11:44 PM, Shane Ambler <[email protected]> wrote:
>> 
>> On 23/07/2015 20:12, Sebastian Schoellhammer wrote:
>>> Hello everyone,
>>> 
>>> I have problems building oiio on macOS. I have installed the dependencies
>>> via fink.
>>> 
>>> This is the bit that fails (at 93% :/):
>>> 
>>> Linking CXX executable imagebuf_test
>>> cd /seb/code/oiio/build/macosx/src/libOpenImageIO && /sw/bin/cmake -E
>>> cmake_link_script CMakeFiles/imagebuf_test.dir/link.txt --verbose=1
>>> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
>>>  -O3 -DNDEBUG -Wl,-search_paths_first -Wl,-headerpad_max_install_names
>>> CMakeFiles/imagebuf_test.dir/imagebuf_test.cpp.o  -o imagebuf_test
>>> -L/sw/opt/boost-1_55/lib  libOpenImageIO.a
>>> /sw/opt/boost-1_55/lib/libboost_filesystem-mt-1_55.dylib
>>> /sw/opt/boost-1_55/lib/libboost_regex-mt-1_55.dylib
>>> /sw/opt/boost-1_55/lib/libboost_system-mt-1_55.dylib
>>> /sw/opt/boost-1_55/lib/libboost_thread-mt-1_55.dylib /sw/lib/libHalf.dylib
>>> /sw/lib/libIex.dylib /sw/lib/libImath.dylib /sw/lib/libIlmThread.dylib
>>> -lopencv_core -lopencv_highgui /sw/lib/libpng.dylib /usr/lib/libz.dylib
>>> /sw/lib/libtiff.dylib /sw/lib/libjpeg.dylib /usr/lib/libz.dylib
>>> /sw/lib/libtiff.dylib /sw/lib/libjpeg.dylib /sw/lib/libwebp.dylib
>>> /sw/lib/libIlmImf.dylib /sw/lib/libgif.dylib /sw/lib/libraw_r.dylib
>>> /sw/lib/libHalf.dylib /sw/lib/libIex.dylib /sw/lib/libImath.dylib
>>> /sw/lib/libIlmThread.dylib -Wl,-rpath,/sw/opt/boost-1_55/lib
>>> ld: library not found for -lopencv_core
>>> clang: error: linker command failed with exit code 1 (use -v to see
>>> invocation)
>>> make[3]: *** [src/libOpenImageIO/imagebuf_test] Error 1
>>> make[2]: *** [src/libOpenImageIO/CMakeFiles/imagebuf_test.dir/all] Error 2
>>> make[1]: *** [all] Error 2
>>> 
>>> 
>>> I ran this to build:
>>> make USE_OPENGL=0 USE_QT=0 USE_PYTHON=0 BUILDSTATIC=1 USE_FIELD3D=0
>>> USE_FFMPEG=0 USE_NUKE=0 USE_OCIO=0  VERBOSE=1
>>> 
>>> 
>>> It seems the library for opencv is missing but I do have
>>> libopencv_core.dylib
>>> and others in /sw/lib
>>> 
>>> Thinking it maybe doesn't have that path I tried adding below
>>> project (OpenImageIO)
>>> 
>>> set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} "/sw/lib")
>>> 
>>> into CMakeLists.txt
>>> but that did not really help.
>> 
>> In the link command you get -lopencv_core - other libs in /sw/lib have
>> a full path and /sw/lib does not appear to be added as a search path.
>> 
>> I can think of two options -
>> 
>> 1. add -L/sw/lib to LDFLAGS (or CXXFLAGS) another option would be to
>> put it in CMAKE_EXE_LINKER_FLAGS similar to the following.
>> 
>> 2. define OpenCV_LIBS and OpenCV_LIBS_highgui by adding
>> 
>> -DOpenCV_LIBS='/sw/lib/libopencv_core.dylib'
>> -DOpenCV_LIBS_highgui='/sw/lib/libopencv_highgui.dylib'
>> 
>> to your cmake command - that's the cmake command before you run make.
>> You can also use ccmake or cmake-gui to set these.
>> 
>> It would appear to be finding the header files so OpenCV_INCLUDE_DIR is
>> either defined right or you have another copy of opencv headers outside
>> of /sw If you have other errors when linking then you may also need to
>> point to matching opencv header files. I expect these would be in
>> /sw/include
>> 
>> 
>> -- 
>> FreeBSD - the place to B...Software Developing
>> 
>> Shane Ambler
>> 
>> _______________________________________________
>> Oiio-dev mailing list
>> [email protected]
>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
> 
> --
> Larry Gritz
> [email protected]
> 
> 
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org

--
Larry Gritz
[email protected]


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