* wasi-common/yanix: fix FreeBSD support * yanix: add fadvise support on FreeBSD and NetBSD * runtime,jit: use cfg(unix) instead of linux||macos
This is the wasmtime-runtime crate, which contains wasm runtime library
support, supporting the wasm ABI used by wasmtime-environ,
wasmtime-jit, and wasmtime-obj.
This crate does not make a host vs. target distinction; it is meant to be compiled for the target.