Provide a Makefile for convenience

The crate can be build by running `make VST_INCLUDE_DIR=/path/to/sdk` .

Makefile

@@ -0,0 +1,38 @@
+RUST_SRC:=$(wildcard **/*.rs)
+RUSTUP:=$(shell which rustup || echo)
+
+all: build
+
+test: check
+	@cargo test
+
+check: fmt-check lint
+
+setup:
+ifeq ($(RUSTUP),)
+	curl https://sh.rustup.rs -sSf | sh
+endif
+	@$(RUSTUP) toolchain install nightly
+	@$(RUSTUP) component add --toolchain=nightly clippy-preview rustfmt-preview
+
+build: target/release/libvst_sys.rlib
+
+target/release/libvst_sys.rlib: $(RUST_SRC)
+	@VST_INCLUDE_DIR=$$VST_INCLUDE_DIR cargo build --release
+
+doc: target/doc/vst-sys/index.html
+
+target/doc/vst-sys/index.html: $(RUST_SRC)
+	@cargo doc
+
+lint: $(RUST_SRC)
+	@cargo +nightly clippy
+
+fmt: $(RUST_SRC)
+	@cargo +nightly fmt
+
+fmt-check: $(RUST_SRC)
+	@cargo +nightly fmt -- --check
+
+clean:
+	@rm -fr target/