Had the wrong command in the v8pp Makefile for v8.a.

v8pp/Makefile

@@ -37,7 +37,7 @@ archive:
 	#ar rvs v8.a $$(cat v8-include.txt |xargs -n 1 -I{} find {} -name '*.o')
 	# We no longer use our v8.a, still including it for now.
 	echo all included object files listed below
-	cat v8-include.txt |xargs -n 1 -I{} find {} -name '*.o'
+	ar rvs v8.a $$(cat v8-include.txt |xargs -n 1 -I{} find {} -name '*.o')
 	# We'll use this one below..
 	find ./v8/out/x64.release/ -name 'libv8_monolith.a' -type f
 	# We'll also include .so files..