Fix v8 archive and experimentally disable the workaround I made in the past.

Should be related to the following runtime issue:

 #
 # Fatal error in , line 0
 # Failed to deserialize the V8 snapshot blob. This can mean that the
 snapshot blob file is corrupted or missing.
 #
 #
 #
 #FailureMessage Object: 0x7f40ed7b8230

v8pp/Makefile

 archive:
 	rm -rf v8.a
 	#ar rvs v8.a $$(cat v8-include.txt |xargs -n 1 -I{} find {} -name '*.o')
-	ar rvs v8.a $$(find ./v8/out/x64.release/ -type f -name '*.o')
+	# third_party/ 
+	# excluding buildtools/third_party directory which contains libc++ etc., or you will get linker errors.
+	# ./out/x64.release/obj/buildtools/third_party/libc++/libc++/
+	ar rvs v8.a $$(find ./v8/out/x64.release/ -type f -name '*.o' | grep -v "buildtools/third_party/libc++/libc++")
 	echo all included object files listed below
 	cat v8-include.txt |xargs -n 1 -I{} find {} -name '*.o'
 	echo all .so files listed below

v8pp/build-v8.sh

 ./tools/dev/gm.py x64.release
 
 # workaround, see notes.txt
-echo "v8_enable_embedded_builtins = false" | tee -a out/x64.release/args.gn
+#echo "v8_enable_embedded_builtins = false" | tee -a out/x64.release/args.gn
 ./tools/dev/gm.py x64.release
 
 #mkdir -p lib