Ubuntu 18.04 Build Error

[shieldnet]

I tried to build this source code with
apt install libpng-dev
sudo make

and got this error.

[SaleNSs]

I did the same, and I've got the same error on Mint 19. Any solutions?

[shieldnet]

I did the same, and I've got the same error on Mint 19. Any solutions?

I've compiled this convert file from GNU/Linux (not ubuntu just GNU/linux) there.
After compile, I moved the binary file to ubuntu. and It also required libpng12-dev.
but, usually libpng12-dev can`t be installed to ubuntu, So, I copied libpng12-dev from /usr/lib64 in GNU/linux. and send my ubuntu machine (lib/usr)

It works!

@SaleNSs