examples: wamr example program

wasm-base/examples/Makefile

@@ -0,0 +1,20 @@
+WASI_SDK := /opt/wasi-sdk
+CLANG    := $(WASI_SDK)/bin/clang
+SYSROOT  := $(WASI_SDK)/share/wasi-sysroot
+
+CFLAGS   :=	--target=wasm32-wasi \
+			--sysroot=$(SYSROOT) \
+			-O2
+
+SRCS     := $(wildcard *.c)
+WASMS    := $(SRCS:.c=.wasm)
+
+.PHONY: build-examples clean
+
+build-examples: $(WASMS)
+
+%.wasm: %.c
+	$(CLANG) $(CFLAGS) $< -o $@
+
+clean:
+	rm -f *.wasm