Runtime: the loader's AVX2 probe used [System.Runtime.Intrinsics.X86.Avx2]
via powershell.exe, which only exists on .NET Core — stock Windows PowerShell
5.1 raised TypeNotFound, so every Windows host silently loaded the baseline
addon and paid ~270ms for the spawn on the startup path. Ask the kernel via
bun:ffi (IsProcessorFeaturePresent(PF_AVX2_INSTRUCTIONS_AVAILABLE), ~0.5ms)
and fall back to pwsh-then-powershell for Node embeds. scripts/host-detect.ts
shared the same broken probe for build-time variant selection.
Build: `bun run build:native` on a win32 host died deep inside the bazel msvc
repo rules (linux/mac exec hosts only, by design). The `host` pseudo-target
now delegates to the local napi build against real VS Build Tools, and other
targets fail fast with guidance. build-bindings.ts resolves the @napi-rs/cli
JS entry from its manifest (the node_modules/.bin shim is a PE launcher Bun
cannot parse) and auto-appends VS Build Tools' bundled CMake/Ninja to PATH
via vswhere so a vcvars prompt is no longer required. Cap maudio at
opt-level=1 to dodge a rustc ICE codegenning MaybeUninit<ma_fence> for
x86_64-pc-windows-msvc under the pinned nightly (Bazel's older pin is
unaffected).
Compile: Bun.Glob.scan yields backslash paths on Windows; the legacy Pi
virtual module used them verbatim for export keys and generated identifiers,
producing invalid JavaScript in compiled-binary builds.
Tests: strip ConPTY negotiation escapes in the pty argv test; ignore the
bazel-oh-my-pi convenience symlink.
zero
82436b0e93