I have cloned and built the llvm repository using instructions on this page : Clang - Getting Started
I am using MacOS.
I am trying to use clang with cmd:
<path_to_llvm>/build/bin/clang -std=c++20 myfile.cpp
I wish to use standard library headers like iostream and c++20 headers like concepts in myfile.
What is the way to have clang find these headers ? What paths need to be set to where ?
Are these c++ standard libraries, part of the llvm-repo I cloned ?