Correct output path of CUDA library

Makefile

@@ -150,7 +150,7 @@ ${RUBIX}: 	${RUBIXOBJS}
 		   ${CXX} ${CXXFLAGS} ${LDFLAGS} -o $@ ${RUBIXOBJS} ${DLIBS}
 
 ${LIBBEDPOSTX_CUDA}: 
-		${CUDA}/bin/nvcc --shared --compiler-options '-fPIC' -o CUDA/libbedpostx_cuda.so CUDA/init_gpu.cu CUDA/samples.cu CUDA/diffmodels.cu CUDA/runmcmc.cu  CUDA/xfibres_gpu.cu -O3  -gencode=arch=compute_20,code=\"sm_20,compute_20\" -gencode=arch=compute_35,code=\"sm_35,compute_35\"  -lcudart -lcuda -lcurand -I. -L${CUDA}/lib64 -L${CUDA}/lib -ICUDA/options -I${CUDA}/include/thrust -I${FSLDIR}/extras/include/newmat -I${FSLDIR}/include -I${FSLDIR}/extras/include/boost -maxrregcount=64
+		${CUDA}/bin/nvcc --shared --compiler-options '-fPIC' -o ${FSLDIR}/lib/libbedpostx_cuda.so CUDA/init_gpu.cu CUDA/samples.cu CUDA/diffmodels.cu CUDA/runmcmc.cu  CUDA/xfibres_gpu.cu -O3  -gencode=arch=compute_20,code=\"sm_20,compute_20\" -gencode=arch=compute_35,code=\"sm_35,compute_35\"  -lcudart -lcuda -lcurand -I. -L${CUDA}/lib64 -L${CUDA}/lib -ICUDA/options -I${CUDA}/include/thrust -I${FSLDIR}/extras/include/newmat -I${FSLDIR}/include -I${FSLDIR}/extras/include/boost -maxrregcount=64
 
 ${MERGE_PARTS_GPU}: ${MERGE_PARTS_GPUOBJS}
 		   ${CXX} ${CXXFLAGS} ${LDFLAGS} -o $@ ${MERGE_PARTS_GPUOBJS} ${DLIBS}