I encountered the following error when make [../python/_swigfaiss_gpu.so].

/usr/local/cuda-7.5//bin/nvcc -I.. -I /usr/local/cuda-7.5//targets/x86_64-linux/include/ -Xcompiler -fPIC -Xcudafe --diag_suppress=unrecognized_attribute -gencode arch=compute_35,code="compute_35" -gencode arch=compute_52,code="compute_52" -gencode arch=compute_52,code="compute_52" --std c++11 -lineinfo -ccbin g++ -DFAISS_USE_FLOAT16 -I/usr/include/python2.7/ -I/usr/lib64/python2.7/site-packages/numpy/core/include/ -shared -o ../python/_swigfaiss_gpu.so ../python/swigfaiss_gpu_wrap.cxx libgpufaiss.a ../libfaiss.a
-Xcompiler -fopenmp -lcublas
-Xlinker /usr/lib/libopenblas.so.0 /usr/lib/lapack/liblapack.so.3.0
nvcc fatal : Don't know what to do with '/usr/lib/lapack/liblapack.so.3.0'
make: *** [../python/_swigfaiss_gpu.so] Error 1

I use cuda-7.5. Is cuda-8.0 necessary for compiling gpu version?
System is 14.04.1-Ubuntu