Hello world,
I've been trying to build OpenCV 2.4.9 (SVN) with CUDA support for a few days on Ubuntu 12.10 (x64).
During the linking I have the following error: Linking CXX executable ../../bin/opencv_perf_gpu ../../lib/libopencv_gpu.so.2.4.9: undefined reference to « cuCtxGetCurrent »
I have no idea on how to fix this and it doesn't seem to be a frequent problem.
I tried various methods in various (if not all) combinations:
- manually installing CUDA 5.0 using Nvidia's package for Ubuntu 11.10 x64
- building CUDA 5.0 and OpenCV using both gcc (and g++) 4.6 and 4.7
- installing the CUDA 4.2 dev and toolkit package provided by apt-get
- trying changing the display drivers: 304.48, 310, 304.54 (from the CUDA 5.0 package)
Each time I made sure to have all the cuda libs detected by ldconfig. Though I'm still not sure which lib file is supposed to contain the function cuCtxGetCurrent...
Thank you in advance.