wasm-libs

Build C/C++ libraries for WebAssembly WASI target.

Usage

make all              # Build all libraries
make libc libgc       # Build specific libraries
make clean            # Remove build artifacts

Requires: Docker or Podman

Libraries

Library	Version
libc	WASI SDK 30
libclang_rt	WASI SDK 30
libgc	v8.2.10
libpcre2	10.47

Output: wasm32-wasi-sysroot/lib/wasm32-wasi/*.a

Version Updates

Edit versions.mk:

WASI_SDK_MAJOR ?= 30
BDWGC_VERSION ?= v8.3.0

Or override:

make WASI_SDK_MAJOR=30 build-container

Quick upgrade check:

make clean all
make tar

See UPGRADE_NOTES.md for upgrade procedures.

Minimal Maintenance Policy

• Keep regular version updates in versions.mk only.
• Keep workflow changes in .github/workflows/release.yml only.
• Change libs/*/build.sh only when upstream changes break builds.