What's the usage of libstdc++.6.dylib?

[Calabor-Hoc]

There is some red highlighted libstdc++.6.dylib in the framework folder of ios project. Do they matter a lot?
ALSO, I'm intertested in your project described here http://meiroo.github.io/projects#ar. Are these project also shared in your Github?

[meiroo]

libstdc++.6.dylib is a system library. Maybe you can change the compile options to fix that.
BTW, The source code is developed under OS X 10.10 and Xcode 6.3/6.4.

These projects have not been released.

Some of the projects demonstrated on my page are developed during my current job, and I can't open-source these projects.