Support musl target (x86_64-unknown-linux-musl / aarch64-unknown-linux-musl)

[fengmk2]

Context

vite-plus needs to ship NAPI bindings for Linux musl targets (linux-x64-musl, linux-arm64-musl) to support Alpine/Docker environments. However, the build fails because fspy_preload_unix produces a cdylib which is not supported on musl targets:

error: cannot produce cdylib for `fspy_preload_unix` as the target `x86_64-unknown-linux-musl` does not support these crate types

This blocks voidzero-dev/vite-plus#992 and voidzero-dev/vite-plus#995.

Expected

vite-task should be buildable for musl targets, either by:

1. Conditionally disabling fspy_preload_unix cdylib on musl targets
2. Providing an alternative implementation for musl
3. Making the preload functionality optional

References

• vite-plus fails to resolve native binding @voidzero-dev/vite-plus-linux-x64-musl when installed with Bun in Docker (Alpine/musl) vite-plus#992 — users unable to run vp build in Alpine/Docker
• feat: add Linux musl target support vite-plus#995 — PR blocked by this issue
• feat: add Linux musl target support vite-plus#995 (comment)

[branchseer]

Fixed in #273.