Description
Supplies compiler runtime support needed when Clang builds programs for the WASI WebAssembly target. It provides low-level routines that compiled code may require, helping WebAssembly modules link and run correctly in WASI environments.
This is a development dependency, not a user-facing app. Developers working with WebAssembly toolchains usually receive it through the compiler setup, while normal users only need it indirectly when building software.