I'm starting to look at what our 5.0 Dockerfiles should contain.
The install instructions on swift.org/download just say
apt-get install clang - so, whatever the distribution default is.
It looks to me like Swift 5 is based on LLVM 7 so I wondered if that meant we should install Clang 7 in our Dockerfiles?
Clang 7 is available in the Ubuntu 18.04 updates repo, however it is not packaged for Ubuntu 16.04.
Question: does it matter which version of Clang we install? Is it essential we install Clang 7 for Swift 5? (if so, I don't think this is possible on Ubuntu 16.04).
Meta-question: Why do we need to install Clang at all - shouldn't the download from swift.org come with everything Clang-related it needs?