Seongmin Kim

Results 2 issues of Seongmin Kim

![image](https://user-images.githubusercontent.com/9548599/56043032-5cbea480-5d77-11e9-85f7-9253ad8f55b5.png) I tried to build this source code with `apt install libpng-dev` `sudo make` and got this error.

Solve complie error on ubuntu machine with binary file and libpng12 files