Several changes to configure script (!137) · Merge requests · elpa / elpa · GitLab

Merged Andreas Marek requested to merge gpu_nccl into master_pre_stage May 09, 2023

first check whether C++ compiler supports c++17 standard (needed for sycl) only if not enforce c++11 standard
or clarity: rename --enable-avx (and so forth) to --enable-avx-kernels for the time being still support old flags