I've found several bug reports and am sure that the problem stems from clang-3.8 being built with libstdc++-7-dev and not properly supporting __float128 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=678033
Google patched gcc by hiding _GLIBCXX_USE_FLOAT128 from clang: https://gcc.gnu.org/ml/gcc-patches/2012-05/msg00672.html There also seems to be a simple typedef workaround: https://stackoverflow.com/questions/13525774/clang-and-float128-bug-error I had to patch /usr/include/c++/7.2.0/bits/std_abs.h in order to compile cupy from source with CUDA8. #if !defined(__STRICT_ANSI__) && defined(_GLIBCXX_USE_FLOAT128) && !defined(__CUDACC__) ** Bug watch added: Debian Bug tracker #678033 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=678033 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1717257 Title: [bug / patch ]patch for glibc 2.26 to avoid errors in compiling with CUDA(NVCC) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1717257/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
