build: add libc++ (#50)

premake5.lua

@@ -76,6 +76,9 @@ if os.istarget("linux") then
 		linkoptions "--target=arm64-linux-gnu"
 	filter {}
 
+	buildoptions "-stdlib=libc++"
+	linkoptions "-stdlib=libc++"
+
 	-- always try to use lld. LD or Gold will not work
 	linkoptions "-fuse-ld=lld"
 end