Installing M4, ncurses, bash

m4

tar xf m4-1.4.16.tar.gz 
cd m4-1.4.16 
./configure --prefix=/tools
make -j 8 

Note: This make will fail. But now edit lib/stdio.h and remove line: _GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead"). Now make can be run again without compile error.

make -j 8 
make install
cd ..

ncurses

tar xf ncurses-5.9.tar.gz 
cd ncurses-5.9
./configure --prefix=/tools --with-shared --with-termlib --with-ticlib --with-normal
make -j 8
make install
cd ..

bash

tar xf bash-4.2.tar.gz 
cd bash-4.2
./configure --prefix=/tools
make -j 8
make install
cd ..

We are now ready for next step