Building Clang+OpenMP on Power9 (Jacob Lambert via Openmp-dev)

Here’s the error I’m getting:

/usr/local/cuda-10.1/bin/nvcc ……
error: identifier “__ieee128” is undefined

I can offer that omp_data doesn’t use a 128 bit type as far as I can see, so I think your problem is in the collision between cuda and library headers. It looks roughly analogous to

I worked around that bug by deleting parts of the header files. Not ideal, but sufficient to get stuff working.