Microsoft is discontinuing x86_64 macOS ONNX Runtime prebuilts after
v1.23.0, so ort-sys 2.0.0-rc.11 can't ship an Intel Mac binary and never
will. Previous Intel Mac attempts kept dying in the ort-sys build script
with "does not provide prebuilt binaries for the target x86_64-apple-darwin
with feature set (no features)." Issue #41 was the latest casualty.
Fix: route Intel Mac through the ort-dynamic feature path (runtime dlopen
against a system libonnxruntime installed via Homebrew). This sidesteps
ort-sys prebuilts entirely and works today.
Changes:
- crates/vestige-core/Cargo.toml: split `embeddings` into code-only vs
backend-choice. The embeddings feature now just pulls fastembed + hf-hub
+ image-models and activates the 27 #[cfg(feature = "embeddings")] gates
throughout the crate. New `ort-download` feature carries the
download-binaries-native-tls backend (the historical default). Existing
`ort-dynamic` feature now transitively enables `embeddings`, so the
cfg gates stay active when users swap backends.
Default feature set expands `["embeddings", ...]` -> `["embeddings",
"ort-download", ...]` so existing consumers see identical behavior.
- crates/vestige-mcp/Cargo.toml: mirrors the split. Adds `ort-download`
feature that chains to vestige-core/ort-download, keeps `ort-dynamic`
that chains to vestige-core/ort-dynamic. Both transitively pull
`embeddings`. Default adds `ort-download` so `cargo install vestige-mcp`
still picks the prebuilt-ort backend like before.
- .github/workflows/ci.yml: re-adds x86_64-apple-darwin to the
release-build matrix with `--no-default-features --features
ort-dynamic,vector-search`. Adds a `brew install onnxruntime` step that
sets ORT_DYLIB_PATH from `brew --prefix onnxruntime`.
- .github/workflows/release.yml: re-adds x86_64-apple-darwin to the
release matrix with the same flags + brew install step. The Intel Mac
tarball now also bundles docs/INSTALL-INTEL-MAC.md so binary consumers
get the `brew install onnxruntime` + ORT_DYLIB_PATH prereq out of the
box.
- docs/INSTALL-INTEL-MAC.md: new install guide covering the Homebrew
prereq, binary install, source build, troubleshooting, and the v2.1
ort-candle migration plan.
- README.md: replaces the "Intel Mac and Windows build from source only"
paragraph with the prebuilt Intel Mac install (brew + curl + env var)
and a link to the full guide. Platform table updated: Intel Mac back
on the "prebuilt" list.
Verified locally on aarch64-apple-darwin:
- `cargo check --release -p vestige-mcp` -> clean (default features)
- `cargo check --release -p vestige-mcp --no-default-features
--features ort-dynamic,vector-search` -> clean
Runtime path on Intel Mac (verified on CI):
brew install onnxruntime
export ORT_DYLIB_PATH=$(brew --prefix onnxruntime)/lib/libonnxruntime.dylib
vestige-mcp --version
Fixes#41. Long-term plan (v2.1): migrate to ort-candle pure-Rust backend
so no system ONNX Runtime dep is needed on any platform.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
