ld: library not found for -lrealsense2

[BoydRotgans]

Python build on Mac OSX issue, does anyone know what to do? Thanks a lot!

[machine-name]:build username$ make
Scanning dependencies of target pyrealsense2
[  5%] Building CXX object CMakeFiles/pyrealsense2.dir/python.cpp.o
[ 11%] Linking CXX shared library pyrealsense2.cpython-36m-darwin.so
ld: library not found for -lrealsense2
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [pyrealsense2.SOVERSION.cpython-36m-darwin.so] Error 1
make[1]: *** [CMakeFiles/pyrealsense2.dir/all] Error 2
make: *** [all] Error 2
[machine-name]:build username$ -v
-bash: -v: command not found
[machine-name]:build username$ make -v
GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

[zivsha]

Have you run the top level CMake (the one under the librealsense folder) before running make?

[BoydRotgans]

@zivsha Yes that is what I did first. This was my output:

`cmake ../ -DBUILD_PYTHON_BINDINGS=bool:true -- The C compiler identification is AppleClang 9.0.0.9000039 -- The CXX compiler identification is AppleClang 9.0.0.9000039 -- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Performing Test COMPILER_SUPPORTS_CXX11 -- Performing Test COMPILER_SUPPORTS_CXX11 - Success -- Performing Test COMPILER_SUPPORTS_CXX0X -- Performing Test COMPILER_SUPPORTS_CXX0X - Success -- Found PythonInterp: /usr/local/bin/python3.6 (found version "3.6.4") -- Found PythonLibs: /usr/local/opt/python3/Frameworks/Python.framework/Versions/3.6/lib/libpython3.6m.dylib -- Performing Test HAS_CPP14_FLAG -- Performing Test HAS_CPP14_FLAG - Success -- pybind11 v2.2.1 -- Performing Test HAS_FLTO -- Performing Test HAS_FLTO - Success -- LTO enabled -- Configuring done -- Generating done CMake Warning: Manually-specified variables were not used by the project:

BUILD_PYTHON_BINDINGS

-- Build files have been written to: /Users/[username]/build/librealsense-2.9.1_rc/wrappers/python/build`

[zivsha]

Hmm something starange is happening on your machien, I see you sepcified python biding flag, but cmake says it was ignored... Can you try clean cmake cache and try again?

[zivsha]

@BoydRotgans were you able to solve the issue?

[djjacqmin]

After running cmake ../ -DBUILD_PYTHON_BINDINGS=bool:true, I opened RealsensePythonWrappers.xcodeproj in the build/wrappers/python directory. In Xcode, I ran Build.

I believe that I successfully built pyrealsense2.so and pybackend2.so in the the build/wrappers/python/Debug folder. I haven't successfully used them yet though (getting "No module named pyrealsense2" when I run the example scripts, but I think it is a problem with python not being able to find the files).

Have you tried the Xcode approach?

[RealSense-Customer-Engineering]

[Realsense Customer Engineering Team Comment] hi @djjacqmin, @BoydRotgans, would like to know if you still need help on this issue? thanks.

[djjacqmin]

@RealSense-Customer-Engineering I have resolved my issue with re: "No module named pyrealsense2", simply had to add pyrealsense2 to path.