Install libb64-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libb64-dev
Description:
base64 encoding/decoding library - development files
libb64 is a library of ANSI C routines for fast encoding/decoding data into and from a base64-encoded format. . This package provides the static library and headers for C and C++.
Homepage: http://libb64.sourceforge.net/
Version: 1.2-4
Section: universe/libdevel