To build the tools you will need to install the following packages on
ubuntu/kbuntu/Debian linux:

(I'm sorry that this is so complicated.)

* make
* g++
* gcc

* zlib1g-dev
* libssl-dev
* libncurses5-dev

Old package names:
* linux-headers (you need this to compile things)
* openssl (should be installed, but may not be)
* zlib (should be installed, but may not be)
* ncurses (should be installed, but may not be)
* readline (ftp://ftp.cwru.edu/pub/bash/readline-5.0.tar.gz)
