Cannot compile on Linux error: identifier "__float128" is undefined

[bradmccormack]

gcc-5 --version gcc-5 (GCC) 5.4.0

cat /opt/cuda/version.txt CUDA Version 8.0.61

uname -a Linux archpc 4.12.8-2-ck #1 SMP PREEMPT Thu Aug 24 16:51:08 AEST 2017 x86_64 GNU/Linux

Any tips please?

[psychocrypt]

I know this error message only from boost, but we are not using boost within the miner.

Please post our cmake output from a clean compile.

[bradmccormack]

`==> Starting prepare()... ==> Starting pkgver()... ==> Starting build()... -- The C compiler identification is GNU 5.4.0 -- The CXX compiler identification is GNU 5.4.0 -- Check for working C compiler: /usr/bin/gcc-5 -- Check for working C compiler: /usr/bin/gcc-5 -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /usr/bin/g++-5 -- Check for working CXX compiler: /usr/bin/g++-5 -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Looking for pthread.h -- Looking for pthread.h - found -- Looking for pthread_create -- Looking for pthread_create - not found -- Looking for pthread_create in pthreads -- Looking for pthread_create in pthreads - not found -- Looking for pthread_create in pthread -- Looking for pthread_create in pthread - found -- Found Threads: TRUE
-- Found CUDA: /opt/cuda (found suitable version "8.0", minimum required is "7.5") -- Found OpenSSL: /usr/lib/libcrypto.so (found version "1.1.0f") -- Configuring done -- Generating done -- Build files have been written to: /tmp/yaourt-tmp-brad/aur-xmr-stak-nvidia-git/src/xmr-stak-nvidia [ 4%] Building NVCC (Device) object CMakeFiles/xmr-stak-nvidiaCuda.dir/nvcc_code/xmr-stak-nvidiaCuda_generated_cuda_extra.cu.o [ 9%] Building NVCC (Device) object CMakeFiles/xmr-stak-nvidiaCuda.dir/nvcc_code/xmr-stak-nvidiaCuda_generated_cuda_core.cu.o Scanning dependencies of target xmr-stak-nvidiaCrypto [ 14%] Building C object CMakeFiles/xmr-stak-nvidiaCrypto.dir/crypto/soft_aes.c.o [ 19%] Building C object CMakeFiles/xmr-stak-nvidiaCrypto.dir/crypto/c_jh.c.o [ 23%] Building C object CMakeFiles/xmr-stak-nvidiaCrypto.dir/crypto/c_blake256.c.o [ 28%] Building C object CMakeFiles/xmr-stak-nvidiaCrypto.dir/crypto/c_skein.c.o [ 33%] Building C object CMakeFiles/xmr-stak-nvidiaCrypto.dir/crypto/c_groestl.c.o [ 38%] Building C object CMakeFiles/xmr-stak-nvidiaCrypto.dir/crypto/c_keccak.c.o nvcc warning : The 'compute_20', 'sm_20', and 'sm_21' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). nvcc warning : The 'compute_20', 'sm_20', and 'sm_21' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). [ 42%] Linking C static library libxmr-stak-nvidiaCrypto.a [ 42%] Built target xmr-stak-nvidiaCrypto nvcc warning : The 'compute_20', 'sm_20', and 'sm_21' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). nvcc warning : The 'compute_20', 'sm_20', and 'sm_21' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning). /usr/include/bits/floatn.h(61): error: invalid argument to attribute "mode"

/usr/include/bits/floatn.h(73): error: identifier "__float128" is undefined

/usr/include/bits/floatn.h(61): error: invalid argument to attribute "mode"

/usr/include/bits/floatn.h(73): error: identifier "__float128" is undefined

2 errors detected in the compilation of "/tmp/tmpxft_000030d8_00000000-23_cuda_core.compute_62.cpp1.ii". CMake Error at xmr-stak-nvidiaCuda_generated_cuda_core.cu.o.Release.cmake:282 (message): Error generating file /tmp/yaourt-tmp-brad/aur-xmr-stak-nvidia-git/src/xmr-stak-nvidia/CMakeFiles/xmr-stak-nvidiaCuda.dir/nvcc_code/./xmr-stak-nvidiaCuda_generated_cuda_core.cu.o

make[2]: [CMakeFiles/xmr-stak-nvidiaCuda.dir/build.make:65: CMakeFiles/xmr-stak-nvidiaCuda.dir/nvcc_code/xmr-stak-nvidiaCuda_generated_cuda_core.cu.o] Error 1 make[2]: Waiting for unfinished jobs.... 2 errors detected in the compilation of "/tmp/tmpxft_000030e2_00000000-23_cuda_extra.compute_62.cpp1.ii". CMake Error at xmr-stak-nvidiaCuda_generated_cuda_extra.cu.o.Release.cmake:282 (message): Error generating file /tmp/yaourt-tmp-brad/aur-xmr-stak-nvidia-git/src/xmr-stak-nvidia/CMakeFiles/xmr-stak-nvidiaCuda.dir/nvcc_code/./xmr-stak-nvidiaCuda_generated_cuda_extra.cu.o

make[2]: [CMakeFiles/xmr-stak-nvidiaCuda.dir/build.make:72: CMakeFiles/xmr-stak-nvidiaCuda.dir/nvcc_code/xmr-stak-nvidiaCuda_generated_cuda_extra.cu.o] Error 1 make[1]: [CMakeFiles/Makefile2:104: CMakeFiles/xmr-stak-nvidiaCuda.dir/all] Error 2 make: *** [Makefile:130: all] Error 2 `

[bradmccormack]

Thanks @psychocrypt for looking into it. From my Googling boost was the main culprit but as you say, it's not used.