Issue Building on Raspberry Pi

[thetoivonen]

Attempting to make /usb_example/DJI_guidance_example on raspbian with g++-4.9.2

After fixing issue #13 in main.cpp...

make -f Makefile_noOpenCV

returns

g++ -g -Wall -I/usr/local/include -I../../../include -c main.cpp DJI_utility.h
g++ -g -Wall -I/usr/local/include -I../../../include -c DJI_utility.cpp DJI_utility.h
g++ -o guidance_example main.o DJI_utility.o -Wl,-rpath,./ -lpthread -lrt -L./ -L/usr/local/lib/ -lDJI_guidance -lusb-1.0
main.o: In function main': /home/pi/Guidance-SDK/examples/usb_example/DJI_guidance_example/main.cpp:178: undefined reference toselect_disparity_image(e_vbus_index)'
/home/pi/Guidance-SDK/examples/usb_example/DJI_guidance_example/main.cpp:185: undefined reference to select_motion()' /home/pi/Guidance-SDK/examples/usb_example/DJI_guidance_example/main.cpp:189: undefined reference toget_device_type(e_device_type_)'
/home/pi/Guidance-SDK/examples/usb_example/DJI_guidance_example/main.cpp:192: undefined reference to get_image_size(int_, int_)' /home/pi/Guidance-SDK/examples/usb_example/DJI_guidance_example/main.cpp:251: undefined reference to set_exposure_param(exposure_param)'
/home/pi/Guidance-SDK/examples/usb_example/DJI_guidance_example/main.cpp:273: undefined reference to `select_disparity_image(e_vbus_index)'
collect2: error: ld returned 1 exit status
Makefile_noOpenCV:12: recipe for target 'guidance_example' failed
make: *** [guidance_example] Error 1

[tangketan]

The default lib is built on Ubuntu 14.04. There is no lib compiled under Raspberry Pi. You may need to use lib compiled on ARM or XU3.

[thetoivonen]

Seems to be an issue with DJI_guidance.h as this is where the undefined references are defined.

[janwillemm]

I have the same issue. I use the ARM so lib and followed the developer sample steps one by one and still get this error. @thetoivonen found any solutions yet?

[thetoivonen]

I was able to get it working by using the XU3 so library and compiling on the Pi with arm-linux-gnueabihf-g++-4.9