fails to build

[skunk73]

/opt/cuda/bin/nvcc -g -O2 -I . -Xptxas "-abi=no -v" -gencode=arch=compute_20,code="sm_20,compute_20" -gencode=arch=compute_30,code="sm_30,compute_30" -gencode=arch=compute_35,code="sm_35,compute_35" --maxrregcount=80 --ptxas-options=-v -o JHA/cuda_jha_compactionTest.o -c JHA/cuda_jha_compactionTest.cu JHA/cuda_jha_compactionTest.cu(117): error: identifier "__shfl_up" is undefined

JHA/cuda_jha_compactionTest.cu(144): error: identifier "__shfl_up" is undefined

2 errors detected in the compilation of "/tmp/tmpxft_00007fe7_00000000-13_cuda_jha_compactionTest.compute_20.cpp1.ii". make[2]: *** [JHA/cuda_jha_compactionTest.o] Error 2 make[2]: Leaving directory /home/skunk/bitcoin/ccminer' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory/home/skunk/bitcoin/ccminer' make: *** [all] Error 2