MacOS Build Error - Githubissues

iPsych commented 5 years ago

Required Info
Camera Model	{ R200 / F200 / SR300 / ZR300 / D400 }
Firmware Version	(Open RealSense Viewer --> Click info)
Operating System & Version	MacOS
Kernel Version (Linux Only)	(e.g. 4.14.13)
Platform	Mac
SDK Version	l2.2.29.0 }
Language	{C/C#/labview/nodejs/opencv/pcl/python/unity }
Segment	{Robot/Smartphone/VR/AR/others }

Issue Description

MacOS compile shows an error as below. The homebrew libusb 1.0.22 is installed and properly linked.

[ 62%] Building CXX object CMakeFiles/realsense2.dir/third-party/easyloggingpp/src/easylogging++.cc.o
1 warning generated.
[ 62%] Linking CXX shared library librealsense2.dylib
Undefined symbols for architecture x86_64:
  "_libusb_get_port_number", referenced from:
      perc::Device::GetUsbConnectionDescriptor() in libtm.a(Device.cpp.o)
  "_libusb_get_port_numbers", referenced from:
      librealsense::platform::get_usb_descriptors(libusb_device*) in enumerator-libusb.cpp.o
      librealsense::platform::get_usb_descriptors(libusb_device*) in libuvc.cpp.o
      perc::UsbPlugListener::EnumerateDevices() in libtm.a(UsbPlugListener.cpp.o)
      perc::Device::GetUsbConnectionDescriptor() in libtm.a(Device.cpp.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [librealsense2.2.29.0.dylib] Error 1
make[1]: *** [CMakeFiles/realsense2.dir/all] Error 2
make: *** [all] Error 2

MartyG-RealSense commented 5 years ago

Another user who had the same undefined symbol error on MacOS offered the advice in the link below:

https://github.com/IntelRealSense/librealsense/issues/2685#issuecomment-436498519

iPsych commented 5 years ago

Another user who had the same undefined symbol error on MacOS offered the advice in the link below:

#2685 (comment)

It's compilation of one cpp, but the error happens in make -j2 after successful cmake cmake .. -DBUILD_EXAMPLES=true -DBUILD_WITH_OPENMP=false -DHWM_OVER_XU=false -DBUILD_WITH_TM2=false

MartyG-RealSense commented 5 years ago

If it is tripping up over libusb, I suspect that -DHWM_OVER_XU=false might be the cause. Are you able to build successfully if that flag is left out of the build command?

ElnazTaqizadeh commented 4 years ago

@iPsych have you been able to resolve the issue?

RealSenseCustomerSupport commented 4 years ago

@iPsych Did you try the workaround below described in https://github.com/IntelRealSense/librealsense/blob/master/doc/installation_osx.md ? Looking forward to your update. Thanks!

Note: On some Mac systems you might encounter ld: library not found for -lusb-1.0 error (either in the terminal during make or in XCode) This can be worked-around by setting environment variable: /bin/launchctl setenv LIBRARY_PATH /usr/local/lib

iPsych commented 4 years ago

@RealSenseCustomerSupport @ElnazTaqizadeh Yes, After re-install libusb using homebrew, and set the env variable using /bin/launchctl setenv LIBRARY_PATH /usr/local/lib, it resolves the issue.