About this repository
This repository contains no compiler or library code itself; it uses git submodules to pull in the upstream Clang and LLVM tree, as well as the wasi-sysroot tree.
The Sysroot portion of this SDK is the wasi-sysroot.
Upstream Clang and LLVM 8.0 can compile for WASI out of the box, and WebAssembly support is included in them by default. So, all that's done here is to provide builds configured to set the default target and sysroot for convenience.
One could also use a standard Clang 8.0, build a sysroot from the sources mentioned above, and compile with "--target=wasm32-unknown-wasi --sysroot=/path/to/sysroot".