[Arduino][Gentoo] libtinfo.so.5: cannot open shared object file

Q:
/home/happy/Downloads/arduino-1.6.9/hardware/tools/avr/bin/avrdude: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such file or directory

A:
emerge sys-libs/ncurses
cd /lib
sudo ln -s libncurses.so.5.7 libtinfo.so.5

Reference:

• missing library libtinfo.so.5
• sys-libs/ncurses - console display library