[deal.II] deal.II and complex numbers

Hello, I'm considering starting to use deal.ii with a strong emphasis on complex numbers equations. I read in the FAQ that it is recommended to split the problem into real and imaginary

Re: [deal.II] Trouble with installation dealii v9.6.1 on Mac: C++17 support is disabled.

Dear all, The problem is resolved. Here is what I have done: Upgraded the xcode, cmake and macOS then restarted the computer. ./candi.sh -j 8 --packages="hdf5 p4est trilinos dealii" However, ended with exit 2, which was different from the previous (exit 1). Remove hdf5 and run as below: ./can