What steps will reproduce the problem? 1.Extract cpyrit-cuda-0.3.0 2.python setup.py build 3.

What is the expected output? What do you see instead? root@alex-desktop:/home/alex# cd Desktop root@alex-desktop:/home/alex/Desktop# cd cpyrit-cuda-0.3.0 root@alex-desktop:/home/alex/Desktop/cpyrit-cuda-0.3.0# python setup.py build running build running build_ext Compiling CUDA module using nvcc 3.1, V0.2.1221... ptxas info : Compiling entry function 'cuda_pmk_kernel' for 'sm_10' ptxas info : Used 42 registers, 16+16 bytes smem, 12 bytes cmem[1] Building modules... building 'cpyrit._cpyrit_cuda' extension creating build creating build/temp.linux-x86_64-2.6 gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/local/cuda/include -I/usr/include/python2.6 -c _cpyrit_cuda.c -o build/temp.linux-x86_64-2.6/_cpyrit_cuda.o -DVERSION="0.3.0" creating build/lib.linux-x86_64-2.6 creating build/lib.linux-x86_64-2.6/cpyrit gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions build/temp.linux-x86_64-2.6/_cpyrit_cuda.o -lssl -lcuda -lz -o build/lib.linux-x86_64-2.6/cpyrit/_cpyrit_cuda.so /usr/bin/ld.bfd.real: cannot find -lcuda collect2: ld returned 1 exit status error: command 'gcc' failed with exit status 1 root@alex-desktop:/home/alex/Desktop/cpyrit-cuda-0.3.0#

What version of the product are you using? On what operating system? I am using Pyrit and Cpyrit 0.3.0 on Ubuntu 10.04 x64bit

Please provide any additional information below. GPU: GTX 470

libcuda.so is usually not reachable by default library search paths. These files usually get installed to /usr/lib[64]/nvidia/...

You may either symlink libcuda.so to /usr/lib[64] or modify your LDPATH.