libclang-6.0-dev 1:6.0~+rc3-1 (arm64 binary) in ubuntu bionic

 Clang project is a C, C++, Objective C and Objective C++ front-end
 based on the LLVM compiler. Its goal is to offer a replacement to the
 GNU Compiler Collection (GCC).
 .
 Clang implements all of the ISO C++ 1998, 11 and 14 standards and also
 provides most of the support of C++17.
 .
 This package contains the clang headers to develop extensions over
 libclang1-6.0.