start calling into wasm2c version of platform

Makefile

@@ -1,7 +1,7 @@
 WASM3_C := $(wildcard wasm3/source/*.c)
 WASM3_O := $(WASM3_C:.c=.o)
 
-uw8-wasm3: main.o $(WASM3_O)
+uw8-wasm3: main.o $(WASM3_O) platform.o wasm-rt-impl.o
 	gcc -g -lm -lSDL2 -o uw8-wasm3 $^
 
 run: uw8-wasm3 .PHONY
@@ -11,10 +11,10 @@ run-ts:
 	deno run --allow-read main.ts
 
 wasm3/source/%.o: wasm3/source/%.c
-	gcc -g -O2 -c -o $@ $^
+	gcc -g -O2 -c -o $@ $<
 
-main.o: main.c
-	gcc -g -O2 -c -o main.o main.c
+%.o: %.c platform.h wasm-rt.h wasm-rt-impl.h
+	gcc -g -O2 -c -o $@ $<
 
 clean:
 	rm uw8-wasm3 main.o $(WASM3_O)